2021 Buick Encore Electrical Connector Parts: OEM & Replacement (90 Parts)

The 2021 Buick Encore has 90 electrical connector parts with verified fitment on this page — 28 part types and 10 brands, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each part includes a manufacturer part number and application notes.

On the 2021 Buick Encore, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 40 parts of the 90 listed are Body Wiring Harness / Connector (19 parts), Engine Wiring Harness / Connector (12 parts) and Instrument Panel Connector (9 parts). The other 25 part types cover the remaining 50 parts.

A/C Compressor Clutch Coil Connector

Brand	Part Number	Markets	Notes	Buy
FOUR SEASONS Fits: 1.3L L3 Turbocharged	37240	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the A/C Compressor Clutch 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.

Air Intake / Charge Temperature Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.3L L3 Turbocharged	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 Fits: 1.3L L3 Turbocharged	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Si Elec Code: G13Generator X12-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	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
WELLS Fits: 1.3L L3 Turbocharged	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.

Battery Current Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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 Battery Current 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
ACDELCO Popular Fits: 1.3L 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: 1.3L 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
GM GENUINE Popular Fits: 1.3L 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
GM GENUINE Popular Fits: 1.3L L3 Turbocharged	PT3612	🇺🇸 US 🇨🇦 CA	BlackTerminal Gender: Female Fitment notes — GM GENUINE PT3612 BlackTerminal Gender: FemaleWidth: 6 in LeftService Information Electrical Code: X110Halogen Headlamps(T4A)Body Harness to Headlamp Assembly Harness6-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.3L 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: 1.3L L3 Turbocharged	PT3773	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3773 GM Original Equipment LeftTAIL LAMP ASSEMBLY HARNESS TO BODY HARNESSBLACK6-WAY MALEwith Leads2.0MM	View on Amazon
GM GENUINE Fits: 1.3L 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: 1.3L 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: 1.3L 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: 1.3L L3 Turbocharged	PT3505	🇺🇸 US 🇨🇦 CA	BlackCrimping Tool Included: No Fitment notes — GM GENUINE PT3505 BlackCrimping Tool Included: NoShape: Square Si Elec Code: P12AHornHigh Note2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	85576725	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 85576725 Black Si Elec Code: K108Enhanced Speaker System (UQ3)Active Noise Cancellation Module X18-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L 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: 1.3L L3 Turbocharged	PT3735	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3735 Black Transmission Shift LeverSi Elec Code: S3.75mm26-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	PT3906	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3906 Black FrontLeftSi Elec Code: B172LFPad Wear Sensor2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	85761014	🇺🇸 US 🇨🇦 CA	BlackNumber Of Butt Connectors: 2 Fitment notes — GM GENUINE 85761014 BlackNumber Of Butt Connectors: 2 Si Elec Code: B110Battery Sensor Module X12-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	13529172	🇺🇸 US 🇨🇦 CA	LeftService Information Electrical Code: F105L Fitment notes — GM GENUINE 13529172 LeftService Information Electrical Code: F105LRoof Rail Air BagGray with Yellow Cover2-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L 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: 1.3L 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
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	S958	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: SquareNumber of Splice Connectors Included: 6 Fitment notes — STANDARD MOTOR PRODUCTS S958 Connector Shape: SquareNumber of Splice Connectors Included: 6Wiring Harness Length (mm): 457.2	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 Pad Wear Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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 Brake Pad Wear 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.

Brake Pedal Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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: 1.3L 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 1418850-3	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: 1.3L L3 Turbocharged	PT3921	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3921 Black Si Elec Code: B26Crankshaft Position Sensor.75mm23-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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.

Differential Lock Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.3L 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 Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 1.3L 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 Harness To Engine Oil Pressure Control Solenoid Valve Harness4-Way Femalewith Leads	View on Amazon
GM GENUINE Popular Fits: 1.3L L3 Turbocharged	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: 1.3L 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: 1.3L 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: 1.3L L3 Turbocharged	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Starter Motor X1Si Elec Code: M642-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.3L 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: 1.3L 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: 1.3L 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: 1.3L 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: 1.3L L3 Turbocharged	84928314	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84928314 Black Si Elec Code: T12Automatic Transmission Assembly X48-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	PT3534	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT3534 BlackShape: Oval Fits: Throttle BodySi Elec Code: Q386-Way Femalewith Leadsor Turbocharger Wastegate Solenoid ValveSi Elec Code: Q426-Way Femalewith Leads	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	85786014	🇺🇸 US 🇨🇦 CA	AWDTransmission Control Module Fitment notes — GM GENUINE 85786014 AWDTransmission 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.

Fuel Injector Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.3L L3 Turbocharged	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

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.

Headliner Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Popular Fits: 1.3L 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 Fits: 1.3L 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
GM GENUINE Fits: 1.3L 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: 1.3L 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: 1.3L L3 Turbocharged	PT3025	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3025 Black Si Elec Code: S25Garage Door Opener4-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.

Ignition Coil Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO Fits: 1.3L L3 Turbocharged	84889372	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84889372 GM Original Equipment Fits: Si Electric Code: T8AIgnition Coil 1Black4-Way Femalewith Leads0.75mmor Si Electric Code: T8BIgnition Coil 2Black4-Way Femalewith Leads0.75mmor Si Electric Code: T8CIgnition Coil 3Black4-Way Femalewith Leads0.75mm	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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.

Impact / Crash Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	S2916	🇺🇸 US 🇨🇦 CA 🇲🇽 MX		View on Amazon

This table covers the harness connectors at the Impact / Crash 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.

Instrument Panel Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 1.3L 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
GM GENUINE Popular Fits: 1.3L L3 Turbocharged	85761014	🇺🇸 US 🇨🇦 CA	BlackNumber Of Butt Connectors: 2 Fitment notes — GM GENUINE 85761014 BlackNumber Of Butt Connectors: 2 Si Elec Code: T10BKeyless Entry AntennaInstrument Panel Compartment2-Way Femalewith Leads	View on Amazon
ACDELCO Fits: 1.3L 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: 1.3L 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: 1.3L L3 Turbocharged	PT3567	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3567 GM Original Equipment SI Electric Code: S38IGNITION MODE SWITCHGRAY8-WAY FEMALEwith Leads	View on Amazon
GM GENUINE Fits: 1.3L 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 Fits: 1.3L L3 Turbocharged	13507121	🇺🇸 US 🇨🇦 CA	BlackTerminal Gender: Male Female Fitment notes — GM GENUINE 13507121 BlackTerminal Gender: Male Female Si Electrical Code: A11Radio X612-Way Femalewithout Leads	View on Amazon
GM GENUINE Fits: 1.3L 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
GM GENUINE Fits: 1.3L L3 Turbocharged	13510218	🇺🇸 US 🇨🇦 CA	YELLOWSTEERING WHEEL AIR BAG COIL X1 Fitment notes — GM GENUINE 13510218 YELLOWSTEERING WHEEL AIR BAG COIL X1SI ELEC CODE: X8521-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: 1.3L L3 Turbocharged	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 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: 1.3L 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
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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.

Park Assist (PAS) Camera Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.3L L3 Turbocharged	42738884	🇺🇸 US 🇨🇦 CA	RearLABELED 42738884, 42692151 Fitment notes — GM GENUINE 42738884 RearLABELED 42738884, 42692151BODY	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	42613917	🇺🇸 US 🇨🇦 CA	Rearwith Light Sensitive Inside Rear View Mirror with Full Video Display (DRZ)	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	42692150	🇺🇸 US 🇨🇦 CA	Fits RearEssence Fitment notes — GM GENUINE 42692150 Fits: RearEssencewith Rear Window Wiper (C25), Mexico (MCX), Hands Free Power Lift Gate (TC2), LED Rear Tail Lamp (UGE), High Definition Digital Rear View Vision (UVB), Roof Radio Antenna (U91)Labeled 42780338Except Rear Camera Washer (CWA), SAE Tail and Stop Lamp (TVM) or: RearEssencewith Rear Window Wiper (C25), North America (MAH), Canada (MBC), Hands Free Power Lift Gate (TC2), LED Rear Tail Lamp (UGE), High Definition Digital Rear View Vision (UVB), Roof Radio Antenna (U91)Labeled 42780338Except Rear Camera Washer (CWA), SAE Tail and Stop Lamp (TVM) or: RearEssencewith Rear Window Wiper (C25), North America (MAH), Canada (MBC), Lift Gate (TB4), LED Rear Tail Lamp (UGE), High Definition Digital Rear View Vision (UVB), Roof Radio Antenna (U91)Labeled 42780338Except Rear Camera Washer (CWA), SAE Tail and Stop Lamp (TVM) or: RearPreferred or Selectwith Rear Window Wiper (C25), North America (MAH), Canada (MBC), Hands Free Power Lift Gate (TC2), SAE Tail and Stop Lamp (TVM	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	42692154	🇺🇸 US 🇨🇦 CA	Fits RearEssence Fitment notes — GM GENUINE 42692154 Fits: RearEssencewith Rear Window Wiper (C25), Mexico (MCX), Hands Free Power Lift Gate (TC2), LED Rear Tail Lamp (UGE), Mono HD Digital Vision with 360 View (UV2), Roof Radio Antenna (U91)Labeled 42692154Except Rear Camera Washer (CWA), SAE Tail and Stop Lamp (TVM) or: RearEssencewith Rear Window Wiper (C25), North America (MAH), Canada (MBC), Hands Free Power Lift Gate (TC2), LED Rear Tail Lamp (UGE), Mono HD Digital Vision with 360 View (UV2), Roof Radio Antenna (U91)Labeled 42692154Except SAE Tail and Stop Lamp (TVM) or: RearSelectwith Rear Window Wiper (C25), North America (MAH), Canada (MBC), Hands Free Power Lift Gate (TC2), SAE Tail and Stop Lamp (TVM), Mono HD Digital Vision with 360 View (UV2), Roof Radio Antenna (U91)Labeled 42692154Except Rear Camera Washer (CWA), LED Rear Tail Lamp (UGE)	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	42692155	🇺🇸 US 🇨🇦 CA	RearEssence or Select Fitment notes — GM GENUINE 42692155 RearEssence or SelectLABELED 42692155	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	42692156	🇺🇸 US 🇨🇦 CA	RearSurround View (Front Door)	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: 1.3L L3 Turbocharged	2HAR0060	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Rear	View on Amazon
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	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: 3Rear	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: 1.3L L3 Turbocharged	S3064	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Rear	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.

Starter Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	S2984	🇺🇸 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.

Temperature Sender / Sensor Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Fits: 1.3L 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: 1.3L L3 Turbocharged	56456	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness4-Way Flat Output Fitment notes — CURT 56456 Custom Wiring Harness4-Way Flat Output with LED Tail Lights	View on Amazon
CURT Fits: 1.3L L3 Turbocharged	56541	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Custom Wiring Harness4-Way Flat Output Fitment notes — CURT 56541 Custom Wiring Harness4-Way Flat Output Plug and Play	View on Amazon
TEKONSHA Fits: 1.3L L3 Turbocharged	118293	🇺🇸 US 🇨🇦 CA	Tow Harness Wiring Package Fitment notes — TEKONSHA 118293 Tow Harness Wiring Package Essence	View on Amazon
TEKONSHA Fits: 1.3L L3 Turbocharged	118829	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	T-One Connector Assembly Fitment notes — TEKONSHA 118829 T-One Connector Assembly Drilling Required	View on Amazon
TEKONSHA Fits: 1.3L L3 Turbocharged	118846	🇺🇸 US 🇨🇦 CA	T-One Connector Assembly Fitment notes — TEKONSHA 118846 T-One Connector Assembly Essence	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: 1.3L L3 Turbocharged	24053059	🇺🇸 US 🇨🇦 CA	Automatic CVT transmissionEssence or Select Fitment notes — GM GENUINE 24053059 Automatic CVT transmissionEssence or SelectPASS-THRUNON-ETRS5.45 Ratio (F8J)	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	24053061	🇺🇸 US 🇨🇦 CA	Automatic CVT TransmissionEssence or Select Fitment notes — GM GENUINE 24053061 Automatic CVT TransmissionEssence or SelectAuxiliary 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.

Turbocharger Boost Sensor Connector

Brand	Part Number	Markets	Notes	Buy
DORMAN Fits: 1.3L L3 Turbocharged	645325	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Black Fitment notes — DORMAN 645325 Black 3 Way Female with LeadsSi Electrical Code B111	View on Amazon

This table covers the harness connectors at the Turbocharger Boost 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.

Vapor Canister Vent Valve / Solenoid Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Fits: 1.3L L3 Turbocharged	S1829	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Connector Shape: Oval, SquareIncludes Hose Fitment notes — STANDARD MOTOR PRODUCTS S1829 Connector Shape: Oval, SquareIncludes HoseLength (In): 1/4, 1-7/8	View on Amazon
WALKER PRODUCTS Fits: 1.3L L3 Turbocharged	2701129	🇺🇸 US 🇨🇦 CA 🇲🇽 MX	Includes Hose	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.

Wire Terminal

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular Fits: 1.3L 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: 1.3L 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 Fits: 1.3L L3 Turbocharged	13575850	🇺🇸 US 🇨🇦 CA	Multi-Purpose Fitment notes — GM GENUINE 13575850 Multi-Purpose Labeled 135758501.0MM2	View on Amazon
GM GENUINE Fits: 1.3L L3 Turbocharged	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: 1.3L 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 2021 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 2021 Buick Encore?

Our catalog currently lists 90 electrical connector parts for the 2021 Buick Encore across 28 subcategories and 10 brands, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each part is matched to the engine(s) it fits.

Do electrical connector parts differ between 2021 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 2021 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 2021 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 2021 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 2021 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 2025 Buick Encore 2024 Buick Encore 2023 Buick Encore 2022 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