2021 Cadillac XT5 Electrical Connector Parts: OEM & Replacement (129 Parts)

129 Electrical connector parts are listed for the 2021 Cadillac XT5, in 42 part types, covering both the 2.0L L4 Turbocharged and the 3.6L V6. Each one has a brand, a manufacturer part number and notes that say where it fits.

The connector system on the 2021 Cadillac XT5 supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Body Wiring Harness / Connector (17 parts), Trailer Connector (12 parts) and Engine Wiring Harness / Connector (11 parts). The other 39 part types cover the remaining 89 parts.

A/C Compressor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: all 2021 XT5 engines	PT3702	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3702 Black Luxury or Premium LuxurySi Elec Code: Q46A/C Compressor Solenoid Valve2-Way Femalewith Leads1.5mm Si Electrical Code: Q46A/C Compressor Solenoid Valve2-Way Femalewith Leads1.5mm	View on Amazon

This table covers the harness connectors at the A/C Compressor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

ABS Wheel Speed Sensor Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Fits: 3.6L V6	PT2160	🇺🇸 US 🇨🇦 CA	GoldShape: Square	View on Amazon
HOLSTEIN Fits: 3.6L V6	2HAR0035	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	HP3945	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Square Fitment notes — STANDARD MOTOR PRODUCTS HP3945 HandypackConnector Shape: SquareIncludes Wheel Speed Sensor Wiring HarnessBlackIncludes ABS Wheel Speed Sensor Wire Harness	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S824	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: SquareHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S824 Connector Shape: SquareHarness LengthIncludes ABS Wheel Speed Sensor Wire HarnessIncludes Wheel Speed Sensor Wiring Harnessinches: 7Length (In): 1.25Wiring Harness Length (mm): 209.55Black	View on Amazon

This table covers the harness connectors at each ABS wheel-speed sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Accelerator Pedal Position Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1478	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: Rectangle	View on Amazon

This table covers the harness connectors at the Accelerator Pedal Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Air Intake / Charge Temperature Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	84677313	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84677313 Black Premium Luxury or SportSi Elec Code: B75CMultifunction Intake Air Sensor.75MM28-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the Air Intake / Charge Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Alternator / Generator Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Fits: 3.6L V6	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Si Elec Code: G13Generator X12-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT2971	🇺🇸 US 🇨🇦 CA	Gender: MaleTerminal Type: Blade Fitment notes — GM GENUINE PT2971 Gender: MaleTerminal Type: BladeBlack Si Elec Code: G13Generator X12-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1477	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without Wiring Harness	View on Amazon
WELLS Fits: 3.6L V6	1P3341	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Alternator / Generator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Ambient Air Temperature Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2860	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalGauge: 16 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S2860 Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack	View on Amazon

This table covers the harness connectors at the Ambient Air Temperature Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Body Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 3.6L V6	PT2612	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2612 Black Si Elec Code: Q13Evaporative Emission Vent Solenoid Valve2-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	PT3912	🇺🇸 US 🇨🇦 CA	Fits FrontLeft Fitment notes — GM GENUINE PT3912 Fits: FrontLeftVertical Suspension Acceleration SensorSi Electrical Code: B161LFNatural3-Way Femalewith Leads1.5mm or: FrontRightVertical Suspension Acceleration SensorSi Electrical Code: B161RFNatural3-Way Femalewith Leads1.5mm or: FrontSuspension Height SensorSi Electrical Code: B51FNatural3-Way Femalewith Leads1.5mm	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	84928314	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84928314 Black Si Elec Code: X408Body Harness To Rear Fascia Harness8-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	85533165	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 85533165 Black Fits: LeftSi Elec Code: X106Front Shock Absorber Actuator Jumper Harness to Body Harness2-Way Malewith Leads1.5 Wire or: RightSi Elec Code: X107Front Shock Absorber Actuator Jumper Harness to Body Harness2-Way Malewith Leads1.5 Wir or: Si Elec Code: X210Body Harness to Body Harness2-Way Malewith Leads1.5 Wire	View on Amazon
GM GENUINE Fits: 3.6L V6	PT2792	🇺🇸 US 🇨🇦 CA	Fits RearLeft Fitment notes — GM GENUINE PT2792 Fits: RearLeftSide Impact SensorSi Elec Code: B63LRDK Gray2-Way Femalewith Leads or: RearRightSide Impact SensorSi Elec Code: B63RRDK Gray2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	84999471	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84999471 Black Si Elec Code: P25Power Sounder Content Theft Deterrent Alarm Module3-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	13576549	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13576549 Black Si Electric Code: X101Body Harness to Forward Lamp Harness40-Way Femalewithout Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	87815146	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 87815146 Black Fits: Terminating ResistorHigh Speed Extension Bus 2Si Elec Code: R6F2-Way Femalewith Leadsor Terminating ResistorHigh Speed Extension Bus 1Si Electrical Code: R6E2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3702	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3702 Black Si Elec Code: T10EKeyless Entry AntennaRear Compartment2-Way Femalewith Leads1.5mm	View on Amazon
GM GENUINE Fits: 3.6L V6	PT2626	🇺🇸 US 🇨🇦 CA	Fits 4WDSport Fitment notes — GM GENUINE PT2626 Fits: 4WDSportSI ELEC CODE: P25POWER SOUNDER CONTENT THEFT DETERRENT ALARM MODULE3-WAY FEMALE BLACK or: Premium LuxurySI ELEC CODE: P25POWER SOUNDER CONTENT THEFT DETERRENT ALARM MODULE3-WAY FEMALE BLACK	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3505	🇺🇸 US 🇨🇦 CA	BlackCrimping Tool Included: No Fitment notes — GM GENUINE PT3505 BlackCrimping Tool Included: NoShape: Square SpeakerSubwooferSi Elec Code: P19AC2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3865	🇺🇸 US 🇨🇦 CA	Si Electrical Code: X80CGray Fitment notes — GM GENUINE PT3865 Si Electrical Code: X80CGrayAccessory Power ReceptacleCargo4.0MM23-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3906	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3906 Black Fits: FrontLeftWheel Speed SensorSi Elec Code: B5LF2-Way Femalewith Leads or: FrontRightWheel Speed SensorSi Elec Code: B5RF2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	85761014	🇺🇸 US 🇨🇦 CA	BlackNumber Of Butt Connectors: 2 Fitment notes — GM GENUINE 85761014 BlackNumber Of Butt Connectors: 2 Fits: Si Elec Code: E8ADoor Sill Plate LampDriver2-Way Femalewith Leadsor Si Elec Code: E8BDoor Sill Plate LampPassenger2-Way Femalewith Leadsor Si Elec Code: B110Battery Sensor Module X12-Way Femalewith Leadsor Si Elec Code: B20Brake Fluid Level Switch2-Way Femalewith Leadsor Si Elec Code: B34DEngine Coolant Temperature Sensor 42-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT1101	🇺🇸 US 🇨🇦 CA	Splice PackSi Elec Code: JX304 Fitment notes — GM GENUINE PT1101 Splice PackSi Elec Code: JX304Gray12-Way Femalewith Leads and CapGT150	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3667	🇺🇸 US 🇨🇦 CA	Si Elec Code: K182Parking Assist Control Module X2 Fitment notes — GM GENUINE PT3667 Si Elec Code: K182Parking Assist Control Module X2Gray.75mm8-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT2888	🇺🇸 US 🇨🇦 CA	Windshield Wiper MotorSi Elec Code: M75 Fitment notes — GM GENUINE PT2888 Windshield Wiper MotorSi Elec Code: M75Gray5-Way Femalewith Leads	View on Amazon

This table covers the body-harness connectors and pigtails. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Brake Pedal Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2506	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Terminal Type: Blade Fitment notes — STANDARD MOTOR PRODUCTS S2506 Terminal Type: Blade Pedal Position Sensor Connector	View on Amazon

This table covers the harness connectors at the Brake Pedal. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Camshaft Position Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	86792094	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792094 Black Fits: Si Elec Code: B23ACamshaft Position SensorBank 1 Exhaust3-Way Femalewith LeadsTerminal PN 1418850-3or Si Elec Code: B23BCamshaft Position SensorBank 1 Intake3-Way Femalewith LeadsTerminal PN 1418850-3or Si Elec Code: B23CCamshaft Position SensorBank 2 Exhaust3-Way Femalewith LeadsTerminal PN 1418850-3or Si Elec Code: B23DCamshaft Position SensorBank 2 Intake3-Way Femalewith LeadsTerminal PN 1418850-3or Si Electrical Code: B23ECamshaft Position SensorExhaust3-Way Femalewith LeadsTerminal PN 1418850-3or Si Electrical Code: B23FCamshaft Position SensorIntake3-Way Femalewith LeadsTerminal PN 1418850-3	View on Amazon

This table covers the harness connectors at the Camshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Crankshaft Position Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	86792094	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792094 Black Premium Luxury or SportSi Elec Code: B26Crankshaft Position Sensor3-Way Femalewith LeadsTerminal PN 1418850-3	View on Amazon
HOLSTEIN Fits: 3.6L V6	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2316	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalNumber of Splice Connectors Included: 3	View on Amazon

This table covers the harness connectors at the Crankshaft Position Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Differential Lock Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	84896487	🇺🇸 US 🇨🇦 CA	4WDElectronic Twin Clutch Positraction Axle (G99)	View on Amazon
GM GENUINE Fits: 3.6L V6	84896488	🇺🇸 US 🇨🇦 CA	4WDPremium Luxury Fitment notes — GM GENUINE 84896488 4WDPremium LuxuryExcept Electronic Twin Clutch Positraction Axle (G99)	View on Amazon

This table covers the harness connectors at the Differential Lock Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Engine Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 3.6L V6	PT2923	🇺🇸 US 🇨🇦 CA	Crimping Tool Included: NoLength: 12 in Fitment notes — GM GENUINE PT2923 Crimping Tool Included: NoLength: 12 inBlack Si Elec Code: X109Engine Harness To Engine Oil Level Sensor Harness4-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	PT2971	🇺🇸 US 🇨🇦 CA	Gender: MaleTerminal Type: Blade Fitment notes — GM GENUINE PT2971 Gender: MaleTerminal Type: BladeBlack Starter Motor X1Si Elec Code: M642-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black Fits: Si Elec Code: Q44Engine Oil Pressure Control Solenoid Valve2-Way Femalewith Leadsor Si Elec Code: B203Radiator Coolant Temperature Sensor2-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 3.6L V6	PT3743	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3743 GM Original Equipment TURBOCHARGER BYPASS SOLENOID VALVESI Electric Code: Q40BLACK2-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 3.6L V6	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Starter Motor X1Si Elec Code: M642-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 3.6L V6	84785110	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84785110 GM Original Equipment Fits: Si Electric Code: Q6ECamshaft Position Actuator Solenoid Valve - ExhaustBlack.75mm2-Way Femalewith Leadsor Si Electric Code: Q6FCamshaft Position Actuator Solenoid Valve - IntakeBlack.75mm2-Way Femalewith Leadsor BLACKAUTOMATIC TRANSMISSION ACCUMULATOR SOLENOID VALVE.75MM22-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 3.6L V6	PT3698	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3698 GM Original Equipment Si Electric Code: G58Evaporative Emission Purge PumpBlack.75mm6-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3702	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3702 Black Fits: Si Elec Code: Q6ACamshaft Position Actuator Solenoid ValveBank 1 Exhaust2-Way Femalewith Leads1.5mmor Si Elec Code: Q6BCamshaft Position Actuator Solenoid ValveBank 1 Intake2-Way Femalewith Leads1.5mmor Si Elec Code: Q6CCamshaft Position Actuator Solenoid ValveBank 2 Exhaust2-Way Femalewith Leads1.5mmor Si Elec Code: Q6DCamshaft Position Actuator Solenoid ValveBank 2 Intake2-Way Femalewith Leads1.5mmor Si Electrical Code: Q84ACamshaft Position Actuator Park Lock Solenoid ValveBank 1 Intake2-Way Femalewith Leads1.5mmor Si Electrical Code: Q84BCamshaft Position Actuator Park Lock Solenoid ValveBank 2 Intake2-Way Femalewith Leads1.5mmor Valve Lifter Oil Solenoid ValveBank 1Si Electrical Code: Q83A2-Way Femalewith Leads1.5mmor Valve Lifter Oil Solenoid ValveBank 2Si Electrical Code: Q83B2-Way Femalewith Leads1.5mm	View on Amazon
GM GENUINE Fits: 3.6L V6	13577534	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577534 Black Si Elec Code: G18High Pressure Fuel Pump2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	85761014	🇺🇸 US 🇨🇦 CA	BlackNumber Of Butt Connectors: 2 Fitment notes — GM GENUINE 85761014 BlackNumber Of Butt Connectors: 2 Fits: Si Elec Code: Q2A/C Compressor Clutch2-Way Femalewith Leadsor Si Elec Code: B35Engine Oil Level Switch2-Way Femalewith Leadsor Premium Luxury or SportService Information Electrical Code: Q12Evaporative Emission Purge Solenoid Valve2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3534	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT3534 BlackShape: Oval Fits: Throttle BodySi Elec Code: Q386-Way Femalewith Leadsor Turbocharger Wastegate ActuatorSi Elec Code: M1286-Way Femalewith Leads	View on Amazon

This table covers the wiring-harness connectors at the Engine. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Fuel Injector Connector

Brand	Part Number	Markets	Notes	Buy
GB REMANUFACTURING Popular Fits: 3.6L V6	5191	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Premium Luxury or Sport	View on Amazon
STANDARD MOTOR PRODUCTS Popular Fits: 3.6L V6	HP4347	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Handypack	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3612	🇺🇸 US 🇨🇦 CA	BlackTerminal Gender: Female Fitment notes — GM GENUINE PT3612 BlackTerminal Gender: FemaleWidth: 6 in Si Elec Code: X160Engine Harness To Odd Fuel Injector Harness6-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	19352907	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19352907 Black Si Electrical Code: X161Engine Harness To Even Fuel Injector Harness12-Way Femalewithout Leads	View on Amazon
SKP Fits: 3.6L V6	SKS824	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1895	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Number of Splice Connectors Included: 2	View on Amazon

This table covers the harness connectors at the Fuel Injector. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fuel Sending Unit Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S3309	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	FWD	View on Amazon

This table covers the harness connectors at the Fuel Sending Unit. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Fuel Tank Pressure Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1445	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Wiring Harness Length (In): 17Wiring Harness Length (mm): 431.8	View on Amazon

This table covers the harness connectors at the Fuel Tank Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Headlamp Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Popular Fits: 3.6L V6	PT3940	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3940 GM Original Equipment Throttle Inlet Absolute Pressure SensorBlack3-Way Femalewith Leads1.0MM2	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	85519071	🇺🇸 US 🇨🇦 CA	Black or Color: Natural Fitment notes — GM GENUINE 85519071 Black or Color: Natural Fits: Si Elec Code: M96BActive Grille Air Shutter 2 Actuator4-Way Femalewith Leadsor Si Elec Code: M96AActive Grille Air Shutter 1 Actuator4-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT2792	🇺🇸 US 🇨🇦 CA	Fits LeftSi Elec Code: B59L Fitment notes — GM GENUINE PT2792 Fits: LeftSi Elec Code: B59LFront Impact SensorDK Gray2-Way Femalewith Leads or: RightSi Elec Code: B59RFront Impact SensorDK Gray2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	85005016	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 85005016 Black Windshield Washer PumpSi Elec Code: G242-Way Femalewith Leads2.5MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3776	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3776 Black Si Elec Code: B55Engine Hood Switch3-Way Femalewith Leads0.75MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3505	🇺🇸 US 🇨🇦 CA	BlackCrimping Tool Included: No Fitment notes — GM GENUINE PT3505 BlackCrimping Tool Included: NoShape: Square Fits: LeftSi Elec Code: P12LHorn2-Way Femalewith Leads or: RightSi Elec Code: P12RHorn2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	13593220	🇺🇸 US 🇨🇦 CA	Windshield Washer Fluid Level SwitchSi Elec Code: B118B Fitment notes — GM GENUINE 13593220 Windshield Washer Fluid Level SwitchSi Elec Code: B118BGray2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	19352907	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19352907 Black Fits: LeftSI ELEC CODE: X110FORWARD LAMP HARNESS TO HEADLAMP HARNESS12-WAY FEMALEwithout LEADS or: RightSI ELEC CODE: X120FORWARD LAMP HARNESS TO HEADLAMP HARNESS12-WAY FEMALEwithout LEADS	View on Amazon

This table covers the wiring-harness connectors at the Headlamp. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Headliner Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Popular Fits: 3.6L V6	PT3868	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3868 GM Original Equipment Si Electric Code: S25Garage Door OpenerBlack.75mm4-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	PT2726	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2726 Black Fits: LeftSunshade Mirror LampSi Elec Code: E31L2-Way Malewith LeadsSquare or: RightSunshade Mirror LampSi Elec Code: E31R2-Way Malewith LeadsSquare or: FrontLeftService Information Electric Code: B24LFMobile Telephone Microphone2-Way Malewith LeadsSquare	View on Amazon
ACDELCO Fits: 3.6L V6	PT3728	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3728 GM Original Equipment RAIN SENSOR MODULEBLACK3-WAY MALEwith Leads0.75MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	12126020	🇺🇸 US 🇨🇦 CA	FrontRight Fitment notes — GM GENUINE 12126020 FrontRightService Information Electric Code: B24RFMobile Telephone MicrophoneGreen2-Way Malewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	13507121	🇺🇸 US 🇨🇦 CA	BlackTerminal Gender: Male Female Fitment notes — GM GENUINE 13507121 BlackTerminal Gender: Male Female Si Electrical Code: B174WFrontview CameraWindshield12-Way Femalewithout Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	13577390	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577390 Black Si Electrical Code: A10Inside Rear View Mirror X110-Way Femalewithout LeadsTerminated Leads 13575867	View on Amazon
GM GENUINE Fits: 3.6L V6	84766302	🇺🇸 US 🇨🇦 CA	Fits RearLeft Fitment notes — GM GENUINE 84766302 Fits: RearLeftSi Elec Code: E37LRGrayDome/Reading Lamps.75mm24-Way Femalewith Leads or: RearRightSi Elec Code: E37RRGrayDome/Reading Lamps.75mm24-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the Headliner. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

HVAC Control Switch / Panel Connector

Brand	Part Number	Markets	Notes	Buy
GPD Fits: 3.6L V6	1713412	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with 3 Terminal(s)	View on Amazon

This table covers the harness connectors at the HVAC Control Switch / Panel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Hybrid Battery Voltage Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2860	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalGauge: 16 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S2860 Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack	View on Amazon

This table covers the harness connectors at the Hybrid Battery Voltage Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Ignition Coil Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	85518225	🇺🇸 US 🇨🇦 CA	BlackGender: Male Fitment notes — GM GENUINE 85518225 BlackGender: MaleWire Gauge Measurement (GA.): 1.0 MM2 GA. Fits: Premium Luxury or SportSi Elec Code: T8AIgnition Coil 14-Way Femalewith Leadsor Premium Luxury or SportSi Elec Code: T8BIgnition Coil 24-Way Femalewith Leadsor Premium Luxury or SportSi Elec Code: T8CIgnition Coil 34-Way Femalewith Leadsor Premium Luxury or SportSi Elec Code: T8DIgnition Coil 44-Way Femalewith Leadsor Premium Luxury or SportSi Elec Code: T8EIgnition Coil 54-Way Femalewith Leadsor Premium Luxury or SportSi Elec Code: T8FIgnition Coil 64-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2894	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Ignition Coil. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Instrument Panel Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 3.6L V6	85761014	🇺🇸 US 🇨🇦 CA	BlackNumber Of Butt Connectors: 2 Fitment notes — GM GENUINE 85761014 BlackNumber Of Butt Connectors: 2 Si Elec Code: T10UKeyless Entry AntennaInstrument Panel2-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 3.6L V6	PT2195	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2195 Black Steering Column Tilt and Telescope SwitchSi Elec Code: S717-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT313	🇺🇸 US 🇨🇦 CA	Service Information Electrical Code: S35Instrument Panel Compartment Lamp Switch Fitment notes — GM GENUINE PT313 Service Information Electrical Code: S35Instrument Panel Compartment Lamp SwitchBlue2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT2560	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2560 Black Steering Column Lock ModuleSi Elec Code: K608-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3735	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3735 Black Si Elec Code: S36Instrument Panel Dimmer Switch.75mm26-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	84773558	🇺🇸 US 🇨🇦 CA	Si Elec Code: B107Natural with Black Cover Fitment notes — GM GENUINE 84773558 Si Elec Code: B107Natural with Black CoverAccelerator Pedal Position Sensor6-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3779	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3779 Black Si Elec Code: P29Head-up Display X1.75mm28-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	PT3695	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3695 Black Si Elec Code: M8Blower Motor6-Way Femalewith Leads5MM2/.75MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	84683650	🇺🇸 US 🇨🇦 CA	Si Elec Code: B22Natural Fitment notes — GM GENUINE 84683650 Si Elec Code: B22NaturalBrake Pedal Position Sensor6-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the Instrument Panel. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Knock / Detonation Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	19301207	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19301207 Black Fits: Si Elec Code: B68BKnock Sensor 22-Way Femalewith Leadsor Si Elec Code: B68AKnock Sensor 12-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 3.6L V6	13577534	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577534 Black Si Elec Code: B68BKnock Sensor 22-Way Femalewith Leads	View on Amazon
WELLS Fits: 3.6L V6	1P1571	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Knock / Detonation Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Manifold Pressure (MAP) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
BWD/NIEHOFF Fits: 3.6L V6	PT944	🇺🇸 US 🇨🇦 CA	Evaporator Emission Control ConnectorAt Fuel Tank Pressure Sensor	View on Amazon
HOLSTEIN Fits: 3.6L V6	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2316	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalNumber of Splice Connectors Included: 3	View on Amazon

This table covers the harness connectors at the Manifold Pressure (MAP) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Mass Air Flow (MAF) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	86792094	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792094 Black Si Elec Code: B74Manifold Absolute Pressure Sensor3-Way Femalewith LeadsTerminal PN 1418850-3	View on Amazon

This table covers the harness connectors at the Mass Air Flow (MAF) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Oil Pressure Sender / Switch Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	PT2980	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2980 Black Si Elec Code: B37BEngine Oil Pressure Sensor3-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2882	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangularHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S2882 Connector Shape: RectangularHarness Lengthinches: 12.25	View on Amazon

This table covers the harness connectors at the Oil Pressure Sender / Switch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Oil Pump Control Valve / Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	12690487	🇺🇸 US 🇨🇦 CA	Premium Luxury or SportMating Connector Use 13587326 Fitment notes — GM GENUINE 12690487 Premium Luxury or SportMating Connector Use 135873262-Way with LeadsJumper Wire	View on Amazon

This table covers the harness connectors at the Oil Pump Control Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Oxygen (O2) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	PT3353	🇺🇸 US 🇨🇦 CA	Fits Si Elec Code: B52FHeated Oxygen Sensor Fitment notes — GM GENUINE PT3353 Fits: Si Elec Code: B52FHeated Oxygen SensorBank 2 Sensor 2Gray4-Way Femalewith Leadsor Si Elec Code: B52DHeated Oxygen SensorBank 1 Sensor 2Gray4-Way Femalewith Leadsor Si Elec Code: B52CHeated Oxygen SensorBank 1 Sensor 1Gray4-Way Femalewith Leadsor Si Elec Code: B52EHeated Oxygen SensorBank 2 Sensor 1Gray4-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the Oxygen (O2) Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Park Assist (PAS) Camera Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	84400057	🇺🇸 US 🇨🇦 CA	RearExcept with Light Sensitive Inside Rear View Mirror with Full Video Display (DRZ)	View on Amazon

This table covers the harness connectors at the Park Assist (PAS) Camera. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Parking Aid Sensor Connector

Brand	Part Number	Markets	Notes	Buy
HOLSTEIN Fits: 3.6L V6	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Front And Rear	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2316	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalNumber of Splice Connectors Included: 3 Fitment notes — STANDARD MOTOR PRODUCTS S2316 Connector Shape: OvalNumber of Splice Connectors Included: 3Front And Rear	View on Amazon

This table covers the harness connectors at the Parking Aid Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Parking Brake Actuator Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1414	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: RectangleTerminal Type: Blade Fitment notes — STANDARD MOTOR PRODUCTS S1414 Connector Shape: RectangleTerminal Type: BladeWiring Harness Length (mm): 476.25Rear	View on Amazon

This table covers the harness connectors at the Parking Brake Actuator. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Radiator Fan Motor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2267	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: Round	View on Amazon

This table covers the harness connectors at the Radiator Fan Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Speed Sensor Connector

Brand	Part Number	Markets	Notes	Buy
DORMAN Fits: 3.6L V6	645160	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Black Fitment notes — DORMAN 645160 Black 2 Way Female	View on Amazon

This table covers the harness connectors at the Speed Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Steering Column Wiring Harness

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	23188723	🇺🇸 US 🇨🇦 CA	Fits Power Retractable Tilt Steering Column (N38)Exc. Electric Steering Column Lock Control (N06) Fitment notes — GM GENUINE 23188723 Fits: Power Retractable Tilt Steering Column (N38)Exc. Electric Steering Column Lock Control (N06) or: Premium Luxury or SportElectric Steering Column Lock Control (N06), Power Retractable Tilt Steering Column (N38)	View on Amazon

This table covers the Steering Column Wiring harnesses.

Temperature Sender / Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	85761014	🇺🇸 US 🇨🇦 CA	BlackNumber Of Butt Connectors: 2 Fitment notes — GM GENUINE 85761014 BlackNumber Of Butt Connectors: 2 Fits: Si Elec Code: B34AEngine Coolant Temperature Sensor 12-Way Femalewith Leadsor Si Elec Code: B34BEngine Coolant Temperature Sensor 22-Way Femalewith Leadsor Si Elec Code: B34CEngine Coolant Temperature Sensor 32-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2860	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalGauge: 16 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S2860 Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack	View on Amazon

This table covers the harness connectors at the Temperature Sender / Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Adapter Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: 3.6L V6	57101	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	7-Way Round RV To 4-Way Flat Adapter Fitment notes — CURT 57101 7-Way Round RV To 4-Way Flat Adapter with Back Up AlarmGM/Ford Plugwith Factory Tow Package	View on Amazon

This table covers the harness connectors at the Trailer Adapter. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Connector

Brand	Part Number	Markets	Notes	Buy
CURT Popular Fits: 3.6L V6	56415	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Replacement 7-Way RV Blade OEM SocketTwist-In Fitment notes — CURT 56415 Replacement 7-Way RV Blade OEM SocketTwist-In with Factory Tow Package	View on Amazon
CURT Popular Fits: 3.6L V6	55415	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Replacement 7-Way RV Blade OEM Socket Fitment notes — CURT 55415 Replacement 7-Way RV Blade OEM Socket with Factory Tow Package	View on Amazon
CURT Popular Fits: 3.6L V6	56229	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	7-Way USCAR Electrical ConnectorLength: 24 in. Fitment notes — CURT 56229 7-Way USCAR Electrical ConnectorLength: 24 in.Bonded Wire with Factory Tow Package	View on Amazon
CURT Fits: 3.6L V6	55515	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring ConnectorOE 4-Way Flat Fitment notes — CURT 55515 Custom Wiring ConnectorOE 4-Way FlatPlugs Into USCAR Replacement2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: 3.6L V6	56515	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Connector5-Way Flat Fitment notes — CURT 56515 Custom Wiring Connector5-Way Flat 2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: 3.6L V6	56325	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Connector4-Way Flat	View on Amazon
CURT Fits: 3.6L V6	55774	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way Fitment notes — CURT 55774 OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way with Factory Tow Package	View on Amazon
CURT Fits: 3.6L V6	57015	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket	View on Amazon
CURT Fits: 3.6L V6	55384	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Connector4-Way Flat Fitment notes — CURT 55384 Custom Wiring Connector4-Way FlatRetains Use of 7 Way Round Connector 2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: 3.6L V6	57020	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged Fitment notes — CURT 57020 OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged Factory TowPlugs Into USCAR	View on Amazon
CURT Fits: 3.6L V6	56584	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness5-Way Flat Fitment notes — CURT 56584 Custom Wiring Harness5-Way FlatRetains Use Of 7-Way OEM 2-Wire Systemwith Factory Tow Package	View on Amazon
CURT Fits: 3.6L V6	56326	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Connector7-Way Round RV Blade	View on Amazon

This table covers the trailer-lighting connectors at the hitch. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Trailer Extension Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: 3.6L V6	56475	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness Extension Fitment notes — CURT 56475 Custom Wiring Harness Extension 20"Uscar To Uscarwith Factory Tow Package	View on Amazon

This table covers the harness connectors at the Trailer Extension. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Transmission-Automatic Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 3.6L V6	24053077	🇺🇸 US 🇨🇦 CA	Fits 4WDTrans.Code 9T65 Fitment notes — GM GENUINE 24053077 Fits: 4WDTrans.Code 9T659 speed Automatic trans.with Oil Level ControlEtrs, with Valve Body Oil LVL control Components3.49 Ratio (FXC) or: FWDPremium LuxuryTrans.Code 9T65with Oil Level ControlEtrs, with Valve Body Oil LVL control Components3.49 Ratio (FXC)	View on Amazon

This table covers the wiring-harness connectors at the Transmission-Automatic. Typical signs include an intermittent fault that moves when you wiggle the harness, or a melted or corroded plug. Match terminal count and keyway. Repair with heat-shrink terminals, not twist-and-tape.

Vapor Canister Vent Valve / Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Fits: 3.6L V6	PT2160	🇺🇸 US 🇨🇦 CA	GoldShape: Square	View on Amazon
HOLSTEIN Fits: 3.6L V6	2HAR0035	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	HP3945	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	HandypackConnector Shape: Square Fitment notes — STANDARD MOTOR PRODUCTS HP3945 HandypackConnector Shape: SquareIncludes Wheel Speed Sensor Wiring HarnessBlackIncludes ABS Wheel Speed Sensor Wire Harness	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S824	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: SquareHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S824 Connector Shape: SquareHarness LengthIncludes ABS Wheel Speed Sensor Wire HarnessIncludes Wheel Speed Sensor Wiring Harnessinches: 7Length (In): 1.25Wiring Harness Length (mm): 209.55Black	View on Amazon

This table covers the harness connectors at the Vapor Canister Vent Valve / Solenoid. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Washer Pump Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S2279	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Front	View on Amazon

This table covers the harness connectors at the Washer Pump. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Wiper Motor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 3.6L V6	S1423	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Wiper Motor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Wire Terminal

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 3.6L V6	13582308	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 1.00 GU Fitment notes — GM GENUINE 13582308 Multi-PurposeWire Gauge Measurement: 1.00 GUWiring Harness Length (In): 17.72 In	View on Amazon
GM GENUINE Fits: 3.6L V6	13576369	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 0.50 GU Fitment notes — GM GENUINE 13576369 Multi-PurposeWire Gauge Measurement: 0.50 GU 0.5MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	13575850	🇺🇸 US 🇨🇦 CA	Multi-Purpose Fitment notes — GM GENUINE 13575850 Multi-Purpose Labeled 135758501.0MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	19119395	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 1.00 GU Fitment notes — GM GENUINE 19119395 Multi-PurposeWire Gauge Measurement: 1.00 GU 1.0MM2	View on Amazon
GM GENUINE Fits: 3.6L V6	19370262	🇺🇸 US 🇨🇦 CA	Multi-PurposeColor: White Fitment notes — GM GENUINE 19370262 Multi-PurposeColor: WhiteConductor Material: CopperTerminal Gender: FemaleWire Gauge Measurement: 22 GUWire Length (In): 17.72 In	View on Amazon

This table covers the terminals crimped onto a harness lead.

Buying Electrical Connector Parts for a 2021 Cadillac XT5

On this vehicle, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules.

Match the engine first. Some electrical connector parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
Read the notes on each row for position, trim and spec qualifiers before you order.
Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.
Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Body Wiring Harness / Connector and Trailer Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2021 Cadillac XT5?

Our catalog currently lists 129 electrical connector parts for the 2021 Cadillac XT5 across 42 subcategories and 11 brands, covering both the 2.0L L4 Turbocharged and the 3.6L V6. Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2021 Cadillac XT5 engines?

Some do. 1 part fits every engine; the other 128 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of electrical connector problems on a 2021 Cadillac XT5?

Common symptoms include intermittent faults that move when the harness is wiggled, green corrosion inside a plug, or melted connector housings near heat sources. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, use heat-shrink crimp connectors rather than twist-and-tape for any pigtail splice, especially outside the cabin.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Cadillac XT5 was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2021 Cadillac XT5?

First match the engine — each row shows which engine(s) the part fits. Then match the connector by terminal count and keyway, not just appearance — many families look identical but will not lock. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2021 Cadillac XT5

Belt Drive Body & Lamp Assembly Brake & Wheel Hub Cooling System Drivetrain Electrical Electrical Bulb & Socket Electrical Switch & Relay Engine

Electrical Connector Parts for Other Cadillac XT5 Years

2026 Cadillac XT5 2025 Cadillac XT5 2024 Cadillac XT5 2023 Cadillac XT5 2022 Cadillac XT5 2020 Cadillac XT5 2019 Cadillac XT5 2018 Cadillac XT5 2017 Cadillac XT5

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.

Published by AutoFactsDB from manufacturer application data. How fitment is matched Report a fitment error