2020 Cadillac XT4 Electrical Connector Parts: OEM & Replacement (111 Parts)

111 Electrical connector parts are listed for the 2020 Cadillac XT4, in 40 part types, covering the 2.0L L4 Turbocharged engine. Each one has a brand, a manufacturer part number and notes that say where it fits.

On the 2020 Cadillac XT4, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. Most of the listed parts are Body Wiring Harness / Connector (16 parts), Engine Wiring Harness / Connector (12 parts) and Instrument Panel Connector (7 parts). The other 37 part types cover the remaining 76 parts.

A/C Compressor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	PT3702	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3702 Black 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
STANDARD MOTOR PRODUCTS Popular	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 HarnessFront	View on Amazon
ACDELCO	PT2160	🇺🇸 US 🇨🇦 CA	GoldShape: Square Fitment notes — ACDELCO PT2160 GoldShape: SquareFront	View on Amazon
DORMAN	645134	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	ABS Wheel Speed SensorFront	View on Amazon
HOLSTEIN	2HAR0035	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness Fitment notes — HOLSTEIN 2HAR0035 Includes ABS Wheel Speed Sensor Wire Harness Front	View on Amazon
STANDARD MOTOR PRODUCTS	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): 209.55BlackFront	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
WELLS	1P4126	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		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	85518225	🇺🇸 US 🇨🇦 CA	BlackGender: Male Fitment notes — GM GENUINE 85518225 BlackGender: MaleWire Gauge Measurement (GA.): 1.0 MM2 GA. Si Elec Code: B75CMultifunction Intake Air Sensor4-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	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Si Elec Code: G13Generator X12-Way Femalewith Leads	View on Amazon
GM GENUINE	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	S1477	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	without Wiring Harness	View on Amazon
WELLS	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.

Body Control Module (BCM) Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black BLACK2-WAY FEMALEwith Leads	View on Amazon

This table covers the harness connectors at the Body Control Module (BCM). 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	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	13577534	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577534 Black Si Elec Code: X123Body Harness To Battery Fuse Block Pigtail Harness2-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	PT3612	🇺🇸 US 🇨🇦 CA	BlackTerminal Gender: Female Fitment notes — GM GENUINE PT3612 BlackTerminal Gender: FemaleWidth: 6 in Fits: LeftTail Lamp AssemblySi Elec Code: E42L6-Way Femalewith Leads or: RightTail Lamp AssemblySi Elec Code: E42R6-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	85533165	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 85533165 Black Fits: FrontLeftSi Elec Code: B172LFPad Wear Sensor2-Way Malewith Leads1.5 Wire or: LeftSi Elec Code: X104Front Suspension Jumper Harness to Body Harness2-Way Malewith Leads1.5 Wire or: RightSi Electric Code: X105Front Suspension Jumper Harness to Body Harness2-Way Malewith Leads1.5 Wire	View on Amazon
GM GENUINE	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 or: 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	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	87815146	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 87815146 Black Terminating ResistorHigh Speed Extension Bus 1Si Electrical Code: R6E2-Way Femalewith Leads	View on Amazon
GM GENUINE	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	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	PT3505	🇺🇸 US 🇨🇦 CA	BlackCrimping Tool Included: No Fitment notes — GM GENUINE PT3505 BlackCrimping Tool Included: NoShape: Square Fits: FrontLeftWheel Speed SensorSi Elec Code: B5LF2-Way Femalewith Leads or: FrontRightWheel Speed SensorSi Elec Code: B5RF2-Way Femalewith Leads or: LeftSi Elec Code: P12LHorn2-Way Femalewith Leads or: RightSi Elec Code: P12RHorn2-Way Femalewith Leads	View on Amazon
GM GENUINE	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	PT3912	🇺🇸 US 🇨🇦 CA	Fits FrontLeft Fitment notes — GM GENUINE PT3912 Fits: FrontLeftSuspension Position SensorSi Electrical Code: B152LFNatural3-Way Femalewith Leads1.5mm or: FrontRightSuspension Position SensorSi Electrical Code: B152RFNatural3-Way Femalewith Leads1.5mm	View on Amazon
GM GENUINE	PT3735	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3735 Black Si Elec Code: X325Body Harness To Windshield Sensor Harness.75mm26-Way Femalewith Leads	View on Amazon
GM GENUINE	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	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
GM GENUINE	19352907	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19352907 Black Fits: LeftService Information Electrical Code: X110Body Harness to Headlamp Harness12-Way Femalewithout Leads or: RightService Information Electrical Code: X120Body Harness to Headlamp Harness12-Way Femalewithout 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	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	86792094	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792094 Black Fits: Si Electrical Code: B23ECamshaft Position SensorExhaust3-Way Femalewith LeadsTerminal PN 1418850-3or Si Electrical Code: B23FCamshaft Position SensorIntake3-Way Femalewith LeadsTerminal PN 1418850-3or Si Electrical Code: B23Camshaft Position Sensor3-Way Femalewith LeadsTerminal PN 1418850-3	View on Amazon
STANDARD MOTOR PRODUCTS	S2807	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		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	86792095	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792095 Black Si Elec Code: B26Crankshaft Position Sensor3-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	S2916	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		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.

Engine Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular	PT2974	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2974 Black Starter Motor X1Si Elec Code: M641-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	PT2923	🇺🇸 US 🇨🇦 CA	Crimping Tool Included: NoLength: 12 in Fitment notes — GM GENUINE PT2923 Crimping Tool Included: NoLength: 12 inBlack Service Information Electrical Code: X116Engine Harness To Engine Oil Control Jumper Harness4-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	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
ACDELCO	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	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Starter Motor X1Si Elec Code: M642-Way Femalewith Leads	View on Amazon
ACDELCO	PT3940	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3940 GM Original Equipment Exhaust Pressure Differential Sensor - particulate filterBlack3-Way Femalewith Leads1.0MM2	View on Amazon
ACDELCO	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	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	PT2930	🇺🇸 US 🇨🇦 CA	Si Elec Code: Q61Reductant Injector Fitment notes — GM GENUINE PT2930 Si Elec Code: Q61Reductant InjectorGray2-Way Femalewith Leads	View on Amazon
GM GENUINE	85519071	🇺🇸 US 🇨🇦 CA	Black or Color: Natural Fitment notes — GM GENUINE 85519071 Black or Color: Natural Si Elec Code: B47BFuel Rail Pressure Sensor4-Way Femalewith Leads	View on Amazon
GM GENUINE	13577534	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577534 Black Fits: Si Elec Code: G18High Pressure Fuel Pump2-Way Femalewith Leadsor Si Elec Code: X162Engine Harness To Knock Sensor 2 Pigtail Harness2-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3534	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT3534 BlackShape: Oval Fits: Throttle BodySi Elec Code: Q386-Way Femalewith Leadsor Si Elec Code: Q20Intake Air Flow Valve6-Way Femalewith Leadsor Turbocharger Wastegate Solenoid ValveSi Elec Code: Q426-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.

Exhaust Gas Temperature (EGT) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO	84727362	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84727362 GM Original Equipment EXHAUST GAS RECIRCULATION TEMPERATURE SENSOR 1BLACK2-WAY FEMALEwith Leads	View on Amazon
GM GENUINE	PT2930	🇺🇸 US 🇨🇦 CA	Si Elec Code: B130BHGray Fitment notes — GM GENUINE PT2930 Si Elec Code: B130BHGrayExhaust Gas Recirculation Temperature Sensor 2High Pressure2-Way Femalewith Leads	View on Amazon
GM GENUINE	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black Si Elec Code: B131AExhaust Temperature Sensor 12-Way Femalewith Leads	View on Amazon
GM GENUINE	PT2931	🇺🇸 US 🇨🇦 CA	Fits Si Elec Code: B130CGray Fitment notes — GM GENUINE PT2931 Fits: Si Elec Code: B130CGrayExhaust Gas Recirculation Temperature Sensor 32-Way Femalewith Leadsor Si Elec Code: B131BGrayExhaust Temperature Sensor 22-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the Exhaust Gas Temperature (EGT) 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.

Fuel Injection Pressure Regulator Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Fits: Si Elec Code: Q18BFuel Pressure Regulator 22-Way Femalewith Leadsor Si Elec Code: Q18AFuel Pressure Regulator 12-Way Femalewith Leads	View on Amazon
GM GENUINE	PT2971	🇺🇸 US 🇨🇦 CA	Gender: MaleTerminal Type: Blade Fitment notes — GM GENUINE PT2971 Gender: MaleTerminal Type: BladeBlack Fits: Si Elec Code: Q18BFuel Pressure Regulator 22-Way Femalewith Leadsor Si Elec Code: Q18AFuel Pressure Regulator 12-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the Fuel Injection Pressure Regulator. 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 Injection Pressure Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	PT2980	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2980 Black BLACK3-WAY FEMALEwith Leads	View on Amazon

This table covers the harness connectors at the Fuel Injection 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.

Fuel Injector Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular	PT3739	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3739 Black Fits: Wire Size 2.5mm2Si Elec Code: Q17AFuel Injector 12-Way Femalewith Leadsor Wire Size 2.5mm2Si Elec Code: Q17BFuel Injector 22-Way Femalewith Leadsor Wire Size 2.5mm2Si Elec Code: Q17CFuel Injector 32-Way Femalewith Leadsor Wire Size 2.5mm2Si Elec Code: Q17DFuel Injector 42-Way Femalewith Leads	View on Amazon
GM GENUINE	13584788	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13584788 Black SI ELEC CODE: X160ENGINE HARNESS TO FUEL INJECTOR HARNESS16-WAY FEMALEwithout LEADS	View on Amazon
SKP	SKS824	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness Fitment notes — SKP SKS824 Includes ABS Wheel Speed Sensor Wire Harness Front	View on Amazon
STANDARD MOTOR PRODUCTS	HP4347	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Handypack	View on Amazon
STANDARD MOTOR PRODUCTS	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 Tank Pressure Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	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.

Headliner Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Popular	PT3868	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3868 GM Original Equipment Fits: Si Electric Code: S25Garage Door OpenerBlack.75mm4-Way Femalewith Leadsor HEADLINER HARNESS TO BODY HARNESSBLACK.75MM24-WAY FEMALEwith Leads	View on Amazon
GM GENUINE Popular	PT2726	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2726 Black Fits: LeftSunshadeSi Elec Code: A3L2-Way Malewith LeadsSquare or: RightSunshadeSi Elec Code: A3R2-Way Malewith LeadsSquare or: FrontLeftService Information Electric Code: B24LFMobile Telephone Microphone2-Way Malewith LeadsSquare	View on Amazon
GM GENUINE	12126020	🇺🇸 US 🇨🇦 CA	FrontRight Fitment notes — GM GENUINE 12126020 FrontRightService Information Electric Code: B24RFMobile Telephone MicrophoneGreen2-Way Malewith Leads	View on Amazon
GM GENUINE	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
GM GENUINE	PT2565	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2565 Black Side Electric Code: K64Content Theft Deterrent Control Module6-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3337	🇺🇸 US 🇨🇦 CA	Terminal Type: PinBlack Fitment notes — GM GENUINE PT3337 Terminal Type: PinBlack Si Elec Code: S43Content Theft Deterrent Sensor Disable Switch6-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	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	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	PT2923	🇺🇸 US 🇨🇦 CA	Crimping Tool Included: NoLength: 12 in Fitment notes — GM GENUINE PT2923 Crimping Tool Included: NoLength: 12 inBlack Fits: Si Elec Code: T8DIgnition Coil 44-Way Femalewith Leadsor Si Elec Code: T8AIgnition Coil 14-Way Femalewith Leadsor Si Elec Code: T8BIgnition Coil 24-Way Femalewith Leadsor Si Elec Code: T8CIgnition Coil 34-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	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	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 Popular	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	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	84724190	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84724190 Black Fits: Si Elec Code: S40Passenger Air Bag Disable Switch4-Way Femalewith Leadsor Si Elec Code: E40Electrical Auxiliary Heater X14-Way Femalewith Leads	View on Amazon
GM GENUINE	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	PT3779	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3779 Black Si Elec Code: P29Head-up Display X2.75mm28-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3695	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3695 Black Si Elec Code: M8Blower Motor6-Way Femalewith Leads5MM2/.75MM2	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.

Keyless Entry Module / Receiver Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO	84867146	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84867146 GM Original Equipment BLACK2-WAY MALEwith Leads	View on Amazon

This table covers the harness connectors at the Keyless Entry Module / Receiver. 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	13577534	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577534 Black Si Elec Code: B68BKnock Sensor 22-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	S2860	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: OvalGauge: 16 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S2860 Connector Shape: OvalGauge: 16 GaugeHarness LengthInches: 13Terminal Type: Bladeblack without Harness	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	PT944	🇺🇸 US 🇨🇦 CA	Evaporator Emission Control ConnectorAt Fuel Tank Pressure Sensor	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.

NOx (Nitrogen Oxide) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	PT2923	🇺🇸 US 🇨🇦 CA	Crimping Tool Included: NoLength: 12 in Fitment notes — GM GENUINE PT2923 Crimping Tool Included: NoLength: 12 inBlack Si Elec Code: B195ANitrogen Oxides Sensor 14-Way Femalewith Leads	View on Amazon
GM GENUINE	PT2922	🇺🇸 US 🇨🇦 CA	Si Elec Code: B195BNitrogen Oxides Sensor 2 Fitment notes — GM GENUINE PT2922 Si Elec Code: B195BNitrogen Oxides Sensor 2Gray4-Way Femalewith Leads	View on Amazon

This table covers the harness connectors at the NOx (Nitrogen Oxide) 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	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	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 Temperature Sender Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	86792095	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792095 Black Si Elec Code: B36Engine Oil Temperature Sensor3-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3921	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3921 Black Si Elec Code: B36Engine Oil Temperature Sensor.75mm23-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	S2820	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	with 3 Blade Terminals	View on Amazon

This table covers the harness connectors at the Oil Temperature Sender. 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	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Front And Rear	View on Amazon
STANDARD MOTOR PRODUCTS	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	S3064	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Rear Left	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	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.

Starter Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2984	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon
WELLS	1P3645	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Starter 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.

Steering Column Wiring Harness

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	23188723	🇺🇸 US 🇨🇦 CA	Fits Premium Luxury or SportPower Retractable Tilt Steering Column (N38) Fitment notes — GM GENUINE 23188723 Fits: Premium Luxury or SportPower 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.

Trailer Connector

Brand	Part Number	Markets	Notes	Buy
CURT	56427	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness4-Way Flat Fitment notes — CURT 56427 Custom Wiring Harness4-Way Flat 2-Wire System	View on Amazon
TEKONSHA	118795	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	T-One Connector Assembly Fitment notes — TEKONSHA 118795 T-One Connector Assembly Drilling Required	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.

Transmission-Automatic Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO	24042637	🇺🇸 US 🇨🇦 CA	Fits FWD3.47 Ratio Transaxle Final Drive (FHB), Stop/Start Engine Control System (KL9) Fitment notes — ACDELCO 24042637 Fits: FWD3.47 Ratio Transaxle Final Drive (FHB), Stop/Start Engine Control System (KL9)9 speedor 3.47 Ratio Transaxle Final Drive (FHB), Driver Select PTU Chassis with Optional AWD (F48), Stop/Start Engine Control System (KL9)9 speed	View on Amazon
GM GENUINE	24053077	🇺🇸 US 🇨🇦 CA	with Oil Level ControlEtrs, with Valve Body Oil LVL control Components Fitment notes — GM GENUINE 24053077 with Oil Level ControlEtrs, with Valve Body Oil LVL control Components3.47 Ratio Transaxle Final Drive (FHB), Stop/Start Engine Control System (KL9)	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	PT2160	🇺🇸 US 🇨🇦 CA	GoldShape: Square	View on Amazon
HOLSTEIN	2HAR0035	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes ABS Wheel Speed Sensor Wire Harness	View on Amazon
STANDARD MOTOR PRODUCTS	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	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.

Variable Valve Timing (VVT) Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2912	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Variable Valve Timing (VVT) 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 Fluid Level Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S3082	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Washer Fluid Level 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.

Washer Pump Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	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	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	84757974	🇺🇸 US 🇨🇦 CA	Multi-PurposeColor: White Fitment notes — GM GENUINE 84757974 Multi-PurposeColor: WhiteTerminal Gender: FemaleWater Resistant: NoWire Gauge Measurement: 14 GUWire Length (In): 17.72 In	View on Amazon
GM GENUINE	13575812	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 0.80 GU Fitment notes — GM GENUINE 13575812 Multi-PurposeWire Gauge Measurement: 0.80 GU 0.8MM2	View on Amazon
GM GENUINE	13575850	🇺🇸 US 🇨🇦 CA	Multi-Purpose Fitment notes — GM GENUINE 13575850 Multi-Purpose Labeled 135758501.0MM2	View on Amazon
GM GENUINE	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	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 2020 Cadillac XT4

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

Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
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 Engine Wiring Harness / Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2020 Cadillac XT4?

Our catalog currently lists 111 electrical connector parts for the 2020 Cadillac XT4 across 40 subcategories and 11 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.

What are the signs of electrical connector problems on a 2020 Cadillac XT4?

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 2020 Cadillac XT4 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 2020 Cadillac XT4?

Every part on this page is matched to the 2.0L L4 Turbocharged engine. 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 2020 Cadillac XT4

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 XT4 Years

2025 Cadillac XT4 2024 Cadillac XT4 2023 Cadillac XT4 2022 Cadillac XT4 2021 Cadillac XT4 2019 Cadillac XT4

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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