2025 Buick Encore Electrical Connector Parts: OEM & Replacement (72 Parts)

This page lists 72 electrical connector parts for the 2025 Buick Encore, across 18 part types, covering both the 1.2L L3 Turbocharged and the 1.3L L3 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.

On the 2025 Buick Encore, 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 (10 parts) and Headliner Connector (9 parts). The other 15 part types cover the remaining 37 parts.

Body Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Popular Fits: 1.2L L3 Turbocharged	84727362	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84727362 GM Original Equipment RightBRAKE PAD WEAR SENSOR - REARBLACK2-WAY FEMALEwith Leads	View on Amazon
ACDELCO Popular Fits: 1.2L L3 Turbocharged	PT3940	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3940 GM Original Equipment Turbocharger Boost SensorBlack3-Way Femalewith Leads1.0MM2	View on Amazon
ACDELCO Popular Fits: 1.2L L3 Turbocharged	PT3773	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3773 GM Original Equipment REAR BODY STRUCTURE STOP LAMP TO BODY HARNESSLED REAR TAIL LAMP (UGE)BLACK6-WAY MALEwith Leads2.0MM	View on Amazon
GM GENUINE Popular Fits: 1.2L L3 Turbocharged	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black Fits: Si Elec Code: B20Brake Fluid Level Switch2-Way Femalewith Leadsor Si Elec Code: B34DEngine Coolant Temperature Sensor 42-Way Femalewith Leadsor Si Elec Code: B203Radiator Coolant Temperature Sensor2-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT2715	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT2715 GM Original Equipment SI Electric Code: E8SREAR COMPARTMENT COURTESY LAMPBLACK2-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT3868	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3868 GM Original Equipment Transmission Shift LeverSi Electric Code: S3Black.75mm4-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	PT3702	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3702 Black Si Elec Code: T10Keyless Entry Antenna2-Way Femalewith Leads1.5mm	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	13593220	🇺🇸 US 🇨🇦 CA	Windshield Washer Fluid Level SensorSi Elec Code: B118 Fitment notes — GM GENUINE 13593220 Windshield Washer Fluid Level SensorSi Elec Code: B118Gray2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	87821959	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 87821959 Black Fits: Si Elec Code: P12AHornHigh Note2-Way Femalewith Leadsor Si Elec Code: P12BHornLow Note2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	PT3906	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3906 Black Fits: FrontLeftSi Elec Code: B172LFPad Wear Sensor2-Way Femalewith Leads or: RearLeftWheel Speed SensorSi Elec Code: B5LR2-Way Femalewith Leads or: RearRightWheel Speed SensorSi Elec Code: B5RR2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	13529172	🇺🇸 US 🇨🇦 CA	Fits LeftService Information Electrical Code: F105L Fitment notes — GM GENUINE 13529172 Fits: LeftService Information Electrical Code: F105LRoof Rail Air BagGray with Yellow Cover2-Way Femalewith Leads or: RightService Information Electrical Code: F105RRoof Rail Air BagGray with Yellow Cover2-Way Femalewith Leads or: FrontRightService Information Electrical Code: F105RFRoof Rail Air BagGray with Yellow Cover2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	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
GM GENUINE Fits: 1.2L L3 Turbocharged	19352907	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19352907 Black Fits: LeftSI ELEC CODE: E13LAHEADLAMP ASSEMBLY12-WAY FEMALEwithout LEADS or: RightSI ELEC CODE: E13RAHEADLAMP ASSEMBLY12-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 Fits: 1.2L L3 Turbocharged	S2506	🇺🇸 US	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: 1.2L L3 Turbocharged	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

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: 1.2L L3 Turbocharged	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 Fits: 1.2L L3 Turbocharged	S2916	🇺🇸 US		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: 1.2L L3 Turbocharged	42694798	🇺🇸 US 🇨🇦 CA	AWD	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 Block Heater Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.2L L3 Turbocharged	84564686	🇺🇸 US 🇨🇦 CA	End 1 Terminal Gender: FemaleEnd 1 Terminal Type: Pin Fitment notes — GM GENUINE 84564686 End 1 Terminal Gender: FemaleEnd 1 Terminal Type: PinWiring Harness Engine Block Heater (K05)	View on Amazon

This table covers the harness connectors at the Engine Block Heater. 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: 1.2L L3 Turbocharged	PT2923	🇺🇸 US 🇨🇦 CA	Crimping Tool Included: NoLength: 12 in Fitment notes — GM GENUINE PT2923 Crimping Tool Included: NoLength: 12 inBlack Fits: Si Elec Code: B65Intake Manifold Pressure and Air Temperature Sensor4-Way Femalewith Leadsor Si Elec Code: X107Engine To Oil Pump Flow Control Solenoid Valve Harness4-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 1.2L L3 Turbocharged	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black Service Information Electrical Code: Q12Evaporative Emission Purge Solenoid Valve2-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	84785110	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84785110 GM Original Equipment BLACKAUTOMATIC TRANSMISSION ACCUMULATOR SOLENOID VALVE.75MM22-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	84719651	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84719651 Black Transfer Case 2WD/4WD Actuator Position SensorSi Elec Code: B1393-Way Femalewith Leads1.5MM2	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	84928314	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84928314 Black Service Information Electrical Code: X175Engine Harness To Transmission Harness8-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	PT3534	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT3534 BlackShape: Oval Throttle BodySi Elec Code: Q386-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	85786014	🇺🇸 US 🇨🇦 CA	Transmission Control ModuleSi Elec Code: K71 Fitment notes — GM GENUINE 85786014 Transmission Control ModuleSi Elec Code: K71Black with Black TPA66-Way Femalewithout 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.

Headliner Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Popular Fits: 1.2L L3 Turbocharged	PT2834	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT2834 GM Original Equipment Fits: LeftSI Electric Code: E37LRDOME/READING LAMPS - REARBLACK3-WAY FEMALEwith Leads or: RightSI Electric Code: E37RRDOME/READING LAMPS - REARBLACK3-WAY FEMALEwith Leads	View on Amazon
GM GENUINE Popular Fits: 1.2L L3 Turbocharged	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
ACDELCO Fits: 1.2L L3 Turbocharged	84880893	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84880893 GM Original Equipment WHITESUNROOF SUNSHADE SWITCHSI Electric Code: S904-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT3701	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3701 GM Original Equipment Si Electric Code: E37ADome/Reading LampsBlack.75mm6-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT3728	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3728 GM Original Equipment Rain/Ambient Light Sensor Module Jumper Harness To Headliner HarnessPulse Moisture Sensitive with S Wiper System (CE1)Black3-Way Malewith Leads0.75MM2	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	87815146	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 87815146 Black Terminating ResistorHigh Speed BusSi Elec Code: R6A2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	84724190	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84724190 Black Sunroof SwitchSi Elec Code: S724-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	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: 1.2L L3 Turbocharged	13577390	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13577390 Black Si Electrical Code: A10Inside Rear View Mirror10-Way Femalewithout LeadsTerminated Leads 13575867	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.

Ignition Coil Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.2L L3 Turbocharged	S2894	🇺🇸 US		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: 1.2L L3 Turbocharged	84724190	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84724190 Black Si Elec Code: E40Electrical Auxiliary Heater X24-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 1.2L L3 Turbocharged	PT3865	🇺🇸 US 🇨🇦 CA	Si Electrical Code: X80Gray Fitment notes — GM GENUINE PT3865 Si Electrical Code: X80GrayAccessory Power Receptacle4.0MM23-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	84815543	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84815543 GM Original Equipment SI Electric Code: K8BLOWER MOTOR CONTROL MODULEBLACK6-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	84769202	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84769202 GM Original Equipment SI Electric Code: A11RADIO X3BLACK4-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT3529	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3529 GM Original Equipment YellowPassenger Instrument Panel Air BagDriver and Passenger Front Seat and Side Roof and Rear Seat Inflatable Restraint (AYF)4-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT3567	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3567 GM Original Equipment SI Electric Code: S38IGNITION MODE SWITCH X1GRAY8-WAY FEMALEwith Leads	View on Amazon
ACDELCO Fits: 1.2L L3 Turbocharged	PT3972	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3972 GM Original Equipment Fits: SI Electric Code: A22RADIO CONTROLS X1BLACK6-WAY FEMALEwith Leadsor SI Electric Code: P16INSTRUMENT CLUSTER X1BLACK6-WAY FEMALEwith Leads	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	13508196	🇺🇸 US 🇨🇦 CA	SI ELEC CODE: K43POWER STEERING CONTROL MODULE X2 Fitment notes — GM GENUINE 13508196 SI ELEC CODE: K43POWER STEERING CONTROL MODULE X2GREEN10-WAY FEMALEwithout 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
STANDARD MOTOR PRODUCTS Fits: 1.2L L3 Turbocharged	S2860	🇺🇸 US	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 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.

Oil Pressure Sender / Switch Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.2L L3 Turbocharged	PT2980	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2980 Black Si Elec Code: B37BEngine Oil Pressure Sensor3-Way Femalewith Leads	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 Fits: 1.2L L3 Turbocharged	86792095	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86792095 Black Si Elec Code: B36Engine Oil Temperature Sensor3-Way Femalewith Leads	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.

Park Assist (PAS) Camera Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.2L L3 Turbocharged	42738884	🇺🇸 US 🇨🇦 CA	RearLABELED 42738884, 42692151 Fitment notes — GM GENUINE 42738884 RearLABELED 42738884, 42692151BODY	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	42692156	🇺🇸 US 🇨🇦 CA	RearSurround View (Front Door)	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	42738883	🇺🇸 US 🇨🇦 CA	RearLIFT GATE JUMPER Fitment notes — GM GENUINE 42738883 RearLIFT GATE JUMPERLABELED 42738883	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	42780338	🇺🇸 US 🇨🇦 CA	RearREAR VIEW	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	42780339	🇺🇸 US 🇨🇦 CA	RearSurround View Fitment notes — GM GENUINE 42780339 RearSurround ViewLabeled 42780339	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	42823059	🇺🇸 US 🇨🇦 CA	RearSUR VIEW (BUMPER)-(AVC)	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.

Temperature Sender / Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.2L L3 Turbocharged	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black 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 Leadsor Si Elec Code: B34Engine Coolant Temperature Sensor2-Way Femalewith Leadsor Si Elec Code: B34EEngine Coolant Temperature Sensor 52-Way Femalewith Leads	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 Connector

Brand	Part Number	Markets	Notes	Buy
CURT Fits: 1.2L L3 Turbocharged	56488	🇺🇸 US	Custom Wiring Harness4-Way Flat Output Fitment notes — CURT 56488 Custom Wiring Harness4-Way Flat Output 3 W Electrical Systemwithout LED Tail Lights	View on Amazon
CURT Fits: 1.2L L3 Turbocharged	56456	🇺🇸 US	Custom Wiring Harness4-Way Flat Output Fitment notes — CURT 56456 Custom Wiring Harness4-Way Flat Output with LED Tail Lights	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
GM GENUINE Fits: 1.2L L3 Turbocharged	24053059	🇺🇸 US 🇨🇦 CA	Automatic CVT transmissionPASS-THRU Fitment notes — GM GENUINE 24053059 Automatic CVT transmissionPASS-THRUNON-ETRS5.45 Ratio (F8J)	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	24053061	🇺🇸 US 🇨🇦 CA	Automatic CVT TransmissionAuxiliary Pump, with Auxiliary Pump Connector Fitment notes — GM GENUINE 24053061 Automatic CVT TransmissionAuxiliary Pump, with Auxiliary Pump Connector5.45 Ratio (F8J)	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.

Wire Terminal

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 1.2L L3 Turbocharged	13576377	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 6.00 GU Fitment notes — GM GENUINE 13576377 Multi-PurposeWire Gauge Measurement: 6.00 GU 3.0MM2	View on Amazon
GM GENUINE Popular Fits: 1.2L L3 Turbocharged	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 Fits: 1.2L L3 Turbocharged	85528055	🇺🇸 US 🇨🇦 CA	Multi-PurposeColor: White Fitment notes — GM GENUINE 85528055 Multi-PurposeColor: WhiteGender: FemaleTerminal Type: PinWire Gauge Measurement: 15 GU	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	19351723	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 2.00 GU Fitment notes — GM GENUINE 19351723 Multi-PurposeWire Gauge Measurement: 2.00 GUWiring Harness Length (In): 17.72 In	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	13575832	🇺🇸 US 🇨🇦 CA	Multi-PurposeTerminal Gender: Female Fitment notes — GM GENUINE 13575832 Multi-PurposeTerminal Gender: Female 5.0MM2	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	86800300	🇺🇸 US 🇨🇦 CA	Multi-PurposeGender: Male Fitment notes — GM GENUINE 86800300 Multi-PurposeGender: MaleWire Gauge Measurement: 15 GU	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	19354746	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 0.75 GU Fitment notes — GM GENUINE 19354746 Multi-PurposeWire Gauge Measurement: 0.75 GUWiring Harness Length (In): 17.72 In	View on Amazon
GM GENUINE Fits: 1.2L L3 Turbocharged	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 2025 Buick Encore

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. Every electrical connector part here is 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 Engine Wiring Harness / Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2025 Buick Encore?

Our catalog currently lists 72 electrical connector parts for the 2025 Buick Encore across 18 subcategories and 4 brands, covering both the 1.2L L3 Turbocharged and the 1.3L L3 Turbocharged. Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2025 Buick Encore engines?

Yes. Every electrical connector part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 2025 Buick Encore?

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 2025 Buick Encore 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 2025 Buick Encore?

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 2025 Buick Encore

Belt Drive Body & Lamp Assembly Brake & Wheel Hub Cooling System Drivetrain Electrical Electrical Bulb & Socket Electrical Switch & Relay Engine Exhaust & Emission Fuel & Air Heat & Air Conditioning Ignition Interior Steering Suspension Automatic Transmission Wheel Wiper & Washer

Electrical Connector Parts for Other Buick Encore Years

2026 Buick Encore 2024 Buick Encore 2023 Buick Encore 2022 Buick Encore 2021 Buick Encore 2020 Buick Encore 2019 Buick Encore 2018 Buick Encore 2017 Buick Encore 2016 Buick Encore 2015 Buick Encore 2014 Buick Encore

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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