2019 Buick Cascada Electrical Connector Parts: OEM & Replacement (117 Parts)

The 2019 Buick Cascada has 117 electrical connector parts with verified fitment on this page — 35 part types and 11 brands, covering the 1.6L L4 Turbocharged engine. Each part includes a manufacturer part number and application notes.

On the 2019 Buick Cascada, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. 34 parts of the 117 listed are Instrument Panel Connector (12 parts), Blower Motor Control Module / Resistor Connector (11 parts) and Body Wiring Harness / Connector (11 parts). The other 32 part types cover the remaining 83 parts.

A/C Compressor Clutch Coil Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	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 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.

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.

A/C Refrigerant Pressure Switch Connector

Brand	Part Number	Markets	Notes	Buy
FOUR SEASONS	37236	🇺🇸 US	3 Terminal Male	View on Amazon
ROSTRA	610225	🇺🇸 US		View on Amazon

This table covers the harness connectors at the A/C Refrigerant Pressure 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.

ABS Wheel Speed Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS Popular	HP3945	🇺🇸 US	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
WELLS Popular	1P1344	🇺🇸 US	Terminal Type: BladeWiring Harness Length: 8.5 In Fitment notes — WELLS 1P1344 Terminal Type: BladeWiring Harness Length: 8.5 InFront	View on Amazon
ACDELCO	PT2160	🇺🇸 US 🇨🇦 CA	GoldShape: Square	View on Amazon
HOLSTEIN	2HAR0035	🇺🇸 US	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	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
WALKER PRODUCTS	2701100	🇺🇸 US	Includes ABS Wheel Speed Sensor Wire Harness Fitment notes — WALKER PRODUCTS 2701100 Includes ABS Wheel Speed Sensor Wire Harness Rear	View on Amazon
WELLS	1P3407	🇺🇸 US	Terminal Type: Blade Pin Fitment notes — WELLS 1P3407 Terminal Type: Blade Pin Front	View on Amazon

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

Accelerator Pedal Position Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S1048	🇺🇸 US		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	84677313	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84677313 Black Si Elec Code: B75CMultifunction Intake Air Sensor.75mm28-Way Femalewith Leads	View on Amazon

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

Alternator / Generator Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	PT3042	🇺🇸 US 🇨🇦 CA	SI ELEC CODE: G13GENERATOR X2 Fitment notes — GM GENUINE PT3042 SI ELEC CODE: G13GENERATOR X22-WAY FEMALE BLACK	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.

Antenna Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	13379652	🇺🇸 US 🇨🇦 CA		View on Amazon

This table covers the harness connectors at the Antenna. 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.

Blower Motor Control Module / Resistor Connector

Brand	Part Number	Markets	Notes	Buy
GPD Popular	1713422	🇺🇸 US	Blower Motor Resistor Pigtailwith 6 Terminals	View on Amazon
STANDARD MOTOR PRODUCTS Popular	S1353	🇺🇸 US	Length (In): 1 Fitment notes — STANDARD MOTOR PRODUCTS S1353 Length (In): 1 with 2 Terminal(s)	View on Amazon
WELLS Popular	1P2711	🇺🇸 US	Terminal Gender: Female Fitment notes — WELLS 1P2711 Terminal Gender: Female with 2 Terminals	View on Amazon
FOUR SEASONS	37274	🇺🇸 US	2 Terminal Male	View on Amazon
FOUR SEASONS	70057	🇺🇸 US	6 Terminal Male	View on Amazon
HOLSTEIN	2HAR0004	🇺🇸 US	2 Terminals	View on Amazon
HOLSTEIN	2HAR0026	🇺🇸 US	Multiple Connectors Required6 Terminals	View on Amazon
STANDARD MOTOR PRODUCTS	S1353HT	🇺🇸 US	Blue Streak Fitment notes — STANDARD MOTOR PRODUCTS S1353HT Blue Streak Front and Rearwith 2 Terminal(s)with High Temperature	View on Amazon
STANDARD MOTOR PRODUCTS	S1702	🇺🇸 US	with 6 Terminal(s)	View on Amazon
STANDARD MOTOR PRODUCTS	S1702HT	🇺🇸 US	Blue Streak Fitment notes — STANDARD MOTOR PRODUCTS S1702HT Blue Streak Front and Rearwith 6 Terminal(s)with High Temperature	View on Amazon
WELLS	1P2659	🇺🇸 US	with 6 Terminals	View on Amazon

This table covers the connectors at the blower resistor or control module. 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	PT2792	🇺🇸 US 🇨🇦 CA	Fits LeftSide Impact Sensor Fitment notes — GM GENUINE PT2792 Fits: LeftSide Impact SensorMiddleSi Elec Code: B63LMDK Gray2-Way Femalewith Leads or: RightSide Impact SensorMiddleSi Elec Code: B63RMDK Gray2-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	19178089	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19178089 Black Si Elec Code: K38Chassis Control Module38-Way Femalewithout Leadswith Cover and Plugs	View on Amazon
GM GENUINE Popular	PT1401	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT1401 Black Si Electrical Code: K83Park Brake Control Module16-Way Femalewith Leads	View on Amazon
ACDELCO	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
GM GENUINE	PT2794	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT2794 BlackShape: Oval Fits: Si Elec Code: B20Brake Fluid Level Switch2-Way Femalewith Leadsor Si Elec Code: M97Fuel Fill Door Lock Actuator2-Way Femalewith Leads	View on Amazon
GM GENUINE	13576549	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 13576549 Black Fits: Si Electric Code: X115Body Harness To Engine Harness40-Way Femalewithout Leadsor Si Electric Code: X121Body Harness to Forward Lamp Harness40-Way Femalewithout Leads	View on Amazon
GM GENUINE	PT3659	🇺🇸 US 🇨🇦 CA	Fits Service Information Electrical Code: F112DSeat Belt Retractor Pretensioner Fitment notes — GM GENUINE PT3659 Fits: Service Information Electrical Code: F112DSeat Belt Retractor PretensionerDriverBlack with Yellow Cover2-Way Femalewith Leads0.75MM2 or: Si Elec Code: F112PSeat Belt Retractor PretensionerPassengerBlack with Yellow Cover2-Way Femalewith Leads0.75MM2 or: LeftSi Elec Code: F121LPyrotechnic Rollover Bar ActuatorBlack with Yellow Cover2-Way Femalewith Leads0.75MM2 or: RearLeftSi Electric Code: F112LRSeat Belt Retractor PretensionerBlack with Yellow Cover2-Way Femalewith Leads0.75MM2 or: RearRightSi Elec Code: F112RRSeat Belt Retractor PretensionerBlack with Yellow Cover2-Way Femalewith Leads0.75MM2 or: RightSi Elec Code: F121RPyrotechnic Rollover Bar ActuatorBlack with Yellow Cover2-Way Femalewith Leads0.75MM2	View on Amazon
GM GENUINE	PT3855	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3855 Black Si Elec Code: B18Battery Current Sensor3-Way Femalewith Leads1.5MM2	View on Amazon
GM GENUINE	86802964	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86802964 Black Fits: RearLeftWheel Speed SensorSi Elec Code: B5LR2-Way Femalewith Leads1.5MM2 or: RearRightWheel Speed SensorSi Elec Code: B5RR2-Way Femalewith Leads1.5MM2	View on Amazon
GM GENUINE	PT3735	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3735 Black Si Elec Code: X431Body Harness To Folding Top Stowage Compartment Harness.75mm26-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	S1243	🇺🇸 US	Connector Shape: RectangleGauge: 18-12 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S1243 Connector Shape: RectangleGauge: 18-12 GaugeLength (In): 1.125	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	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
ACDELCO	PT3940	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT3940 GM Original Equipment Fits: Si Electric Code: B23ECamshaft Position Sensor - ExhaustBlack3-Way Femalewith Leads1.0MM2 or: Si Electric Code: B23FCamshaft Position Sensor - IntakeBlack3-Way Femalewith Leads1.0MM2	View on Amazon
DORMAN	645325	🇺🇸 US	Black Fitment notes — DORMAN 645325 Black Fits: 3 Way Female with LeadsExhaustSi Electrical Code B23E or: 3 Way Female with LeadsIntakeSi Electrical Code B23F	View on Amazon
HOLSTEIN	2HAR0060	🇺🇸 US		View on Amazon
STANDARD MOTOR PRODUCTS	S2316	🇺🇸 US	Connector Shape: OvalNumber of Splice Connectors Included: 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
HOLSTEIN	2HAR0060	🇺🇸 US		View on Amazon
STANDARD MOTOR PRODUCTS	S2316	🇺🇸 US	Connector Shape: OvalNumber of Splice Connectors Included: 3	View on Amazon

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

Engine Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular	PT2971	🇺🇸 US 🇨🇦 CA	Gender: MaleTerminal Type: Blade Fitment notes — GM GENUINE PT2971 Gender: MaleTerminal Type: BladeBlack Si Elec Code: E41Engine Coolant Thermostat Heater2-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	PT2929	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2929 Black Fits: Si Elec Code: Q44Engine Oil Pressure Control Solenoid Valve2-Way Femalewith Leadsor Si Elec Code: Q6ECamshaft Position Actuator Solenoid ValveExhaust2-Way Femalewith Leadsor Si Elec Code: B35Engine Oil Level Switch2-Way Femalewith Leadsor Si Elec Code: Q6FCamshaft Position Actuator Solenoid ValveIntake2-Way Femalewith Leads	View on Amazon
ACDELCO	84941154	🇺🇸 US 🇨🇦 CA	Black Fitment notes — ACDELCO 84941154 Black Si Elec Code: E41Engine Coolant Thermostat Heater2-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3042	🇺🇸 US 🇨🇦 CA	Service Information Electrical Code: Q12Evaporative Emission Purge Solenoid Valve Fitment notes — GM GENUINE PT3042 Service Information Electrical Code: Q12Evaporative Emission Purge Solenoid Valve2-Way Female Black	View on Amazon
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: B65Intake Manifold Pressure and Air Temperature Sensor4-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3534	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT3534 BlackShape: Oval Throttle BodySi Elec Code: Q386-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.

Fog / Driving Lamp Connector

Brand	Part Number	Markets	Notes	Buy
ACDELCO	PT2298	🇺🇸 US 🇨🇦 CA	GoldHeight (In): 1.5 in Fitment notes — ACDELCO PT2298 GoldHeight (In): 1.5 inShape: Rectangle	View on Amazon
STANDARD MOTOR PRODUCTS	HP3835	🇺🇸 US	HandypackConnector Shape: Oval Fitment notes — STANDARD MOTOR PRODUCTS HP3835 HandypackConnector Shape: OvalWiring Harness Length (mm): 311.15	View on Amazon
STANDARD MOTOR PRODUCTS	S553	🇺🇸 US	Connector Shape: OvalContact Terminal Material: Metal Fitment notes — STANDARD MOTOR PRODUCTS S553 Connector Shape: OvalContact Terminal Material: MetalNumber of Splice Connectors Included: 0Wiring Harness Length (In): 12.25Wiring Harness Length (mm): 311.15	View on Amazon
WELLS	1P1032	🇺🇸 US		View on Amazon

This table covers the harness connectors at the Fog / Driving Lamp. 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 Si Elec Code: Q18Fuel Pressure Regulator2-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: Q18Fuel Pressure Regulator2-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 Injector Connector

Brand	Part Number	Markets	Notes	Buy
SKP	SKS824	🇺🇸 US	Includes ABS Wheel Speed Sensor Wire Harness	View on Amazon

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

Fuel Sending Unit Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2904	🇺🇸 US		View on Amazon

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

Fuel Tank Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular	PT2612	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2612 Black BLACK2-WAY FEMALEwith Leads	View on Amazon
GM GENUINE Popular	PT1401	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT1401 Black Black16-Way Femalewith Leads	View on Amazon
GM GENUINE	PT2648	🇺🇸 US 🇨🇦 CA	GRAY3-WAY FEMALE Fitment notes — GM GENUINE PT2648 GRAY3-WAY FEMALEwith Leads	View on Amazon
GM GENUINE	PT2391	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2391 Black Black3-Way FemaleGT150 Serieswith Leads	View on Amazon
GM GENUINE	PT2877	🇺🇸 US 🇨🇦 CA	Natural4-Way Female Fitment notes — GM GENUINE PT2877 Natural4-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	S1243	🇺🇸 US	Connector Shape: RectangleGauge: 18-12 Gauge Fitment notes — STANDARD MOTOR PRODUCTS S1243 Connector Shape: RectangleGauge: 18-12 GaugeLength (In): 1.125	View on Amazon

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

Headlamp Wiring Harness / Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE Popular	PT2792	🇺🇸 US 🇨🇦 CA	Fits LeftSi Elec Code: B59L Fitment notes — GM GENUINE PT2792 Fits: LeftSi Elec Code: B59LFront Impact SensorDK Gray2-Way Femalewith Leads or: RightSi Elec Code: B59RFront Impact SensorDK Gray2-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	PT2612	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2612 Black Si Elec Code: P12Horn2-Way Femalewith Leads	View on Amazon
GM GENUINE	19181245	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 19181245 Black SI ELEC CODE: X118FRONT FASCIA HARNESS TO FORWARD LAMP HARNESS16-WAY MALEwithout LEADS	View on Amazon
GM GENUINE	PT2794	🇺🇸 US 🇨🇦 CA	BlackShape: Oval Fitment notes — GM GENUINE PT2794 BlackShape: Oval Windshield Washer Fluid Level SwitchSi Elec Code: B118B2-Way Femalewith Leads	View on Amazon
GM GENUINE	84999471	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84999471 Black FrontSuspension Height SensorSi Elec Code: B51F3-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	PT2626	🇺🇸 US 🇨🇦 CA	FrontSUSPENSION HEIGHT SENSOR Fitment notes — GM GENUINE PT2626 FrontSUSPENSION HEIGHT SENSORSI ELEC CODE: B51F3-WAY FEMALE BLACK	View on Amazon
GM GENUINE	86802964	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 86802964 Black Fits: FrontLeftWheel Speed SensorSi Elec Code: B5LF2-Way Femalewith Leads1.5MM2 or: FrontRightWheel Speed SensorSi Elec Code: B5RF2-Way Femalewith Leads1.5MM2	View on Amazon

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

Headliner Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	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 LeadsSquar or: Service Information Electric Code: B24Mobile Telephone Microphone2-Way Malewith LeadsSquare	View on Amazon
GM GENUINE	PT2556	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2556 Black FrontSi Elec Code: E37FDome/Reading Lamps6-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.

Horn Connector

Brand	Part Number	Markets	Notes	Buy
DORMAN	645215	🇺🇸 US	2 Cavity Female	View on Amazon
ROSTRA	610059	🇺🇸 US	Terminal Gender: Female	View on Amazon

This table covers the harness connectors at the Horn. 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		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	PT242	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT242 Black Si Electrical Code: B80Park Brake Switch1-Way Femalewith LeadsUnsealed	View on Amazon
GM GENUINE Popular	PT2630	🇺🇸 US 🇨🇦 CA	YellowSteering Wheel Air Bag Coil X5 Fitment notes — GM GENUINE PT2630 YellowSteering Wheel Air Bag Coil X5Si Elec Code: X854-Way Femalewith Leads	View on Amazon
GM GENUINE Popular	PT3779	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3779 Black Si Elec Code: P17Display Module X1.75mm28-Way Femalewith Leads	View on Amazon
ACDELCO	PT2715	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO PT2715 GM Original Equipment Fits: SI Electric Code: E27INSTRUMENT PANEL COMPARTMENT LAMPBLACK2-WAY FEMALEwith Leads or: LeftSPEAKER - FRONT TWEETERSI Electric Code: P19HBLACK2-WAY FEMALEwith Leads	View on Amazon
ACDELCO	84815543	🇺🇸 US 🇨🇦 CA	GM Original Equipment Fitment notes — ACDELCO 84815543 GM Original Equipment SI Electric Code: K8BLOWER MOTOR CONTROL MODULE X1BLACK6-WAY FEMALEwith Leads	View on Amazon
GM GENUINE	PT2553	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2553 Black Service Information Electrical Code: K77Remote Control Door Lock Receiver4-Way Femalewith Leads	View on Amazon
GM GENUINE	PT2557	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT2557 Black Fits: Si Elec Code: S48DMultifunction Switch 2Instrument Panel8-Way Femalewith Leadsor Windshield Wiper/Washer SwitchSi Elec Code: S828-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3840	🇺🇸 US 🇨🇦 CA	Si Elec Code: K89Purple Fitment notes — GM GENUINE PT3840 Si Elec Code: K89PurpleImmobilizer Control Module3-Way Femalewith Leads0.75mm	View on Amazon
GM GENUINE	PT3659	🇺🇸 US 🇨🇦 CA	Service Information Electrical Code: F114PKnee Air Bag Fitment notes — GM GENUINE PT3659 Service Information Electrical Code: F114PKnee Air BagPassengerBlack with Yellow Cover2-Way Femalewith Leads0.75MM2	View on Amazon
GM GENUINE	84724190	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE 84724190 Black Transmission Shift Lever Position IndicatorSi Elec Code: P24-Way Femalewith Leads	View on Amazon
GM GENUINE	PT3758	🇺🇸 US 🇨🇦 CA	Black Fitment notes — GM GENUINE PT3758 Black Steering Wheel Air Bag Coil X3Si Elec Code: X852-Way Malewith Leads	View on Amazon
GM GENUINE	PT1502	🇺🇸 US 🇨🇦 CA	Telematics Communication Interface Control Module X2Si Electric Code: K73 Fitment notes — GM GENUINE PT1502 Telematics Communication Interface Control Module X2Si Electric Code: K73Natural12-Way Femalewith Leads	View on Amazon

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

Mass Air Flow (MAF) Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2507	🇺🇸 US		View on Amazon

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

Oil Pressure Sender / Switch Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	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	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.

Oxygen (O2) 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: B52AHeated Oxygen Sensor 14-Way Femalewith Leads	View on Amazon
STANDARD MOTOR PRODUCTS	S3097	🇺🇸 US	RearGray Fitment notes — STANDARD MOTOR PRODUCTS S3097 RearGraywith 4 Female Terminals	View on Amazon
STANDARD MOTOR PRODUCTS	S2894	🇺🇸 US	Right RearColor Code Black and Purple Fitment notes — STANDARD MOTOR PRODUCTS S2894 Right RearColor Code Black and Purplewith 4 Female Terminals	View on Amazon

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

Parking Aid Sensor Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2269	🇺🇸 US	Connector Shape: RectangleNumber of Splice Connectors Included: 3 Fitment notes — STANDARD MOTOR PRODUCTS S2269 Connector Shape: RectangleNumber of Splice Connectors Included: 3Front	View on Amazon
STANDARD MOTOR PRODUCTS	S1497	🇺🇸 US	Front 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.

Power Steering Assist Motor / Module Connector

Brand	Part Number	Markets	Notes	Buy
GM GENUINE	13253619	🇺🇸 US 🇨🇦 CA	Left Hand Drive (LHD),Electronic Power Steering(NJ1)	View on Amazon

This table covers the harness connectors at the Power Steering Assist Motor / Module. 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	PT2550	🇺🇸 US 🇨🇦 CA	BlackShape: Round Fitment notes — GM GENUINE PT2550 BlackShape: Round Si Elec Code: B34AEngine Coolant Temperature Sensor 12-Way Femalewith LeadsPhysically verify part matches original plug	View on Amazon
HOLSTEIN	2HAR0036	🇺🇸 US	Includes ABS Wheel Speed Sensor Wire Harness Fitment notes — HOLSTEIN 2HAR0036 Includes ABS Wheel Speed Sensor Wire Harness Located on water outlet	View on Amazon
STANDARD MOTOR PRODUCTS	S1686	🇺🇸 US	Connector Shape: OvalBlack Fitment notes — STANDARD MOTOR PRODUCTS S1686 Connector Shape: OvalBlackIncludes Wheel Speed Sensor Wiring Harness, ABS Wheel Speed Sensor Wire Harness On Water Outlet	View on Amazon
WELLS	1P3395	🇺🇸 US	Located on Thermostat Housing	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.

Throttle Control Actuator Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2409	🇺🇸 US	Gender: MaleHarness Length Fitment notes — STANDARD MOTOR PRODUCTS S2409 Gender: MaleHarness Lengthinches: 12.5	View on Amazon

This table covers the harness connectors at the Throttle Control 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.

Vapor Canister Connector

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

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

Washer Pump Connector

Brand	Part Number	Markets	Notes	Buy
STANDARD MOTOR PRODUCTS	S2279	🇺🇸 US	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.

Wire Terminal

Brand	Part Number	Markets	Notes	Buy
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	13575400	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 1.25 GU Fitment notes — GM GENUINE 13575400 Multi-PurposeWire Gauge Measurement: 1.25 GU 1.25MM2	View on Amazon
GM GENUINE	13576360	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 0.35 GU Fitment notes — GM GENUINE 13576360 Multi-PurposeWire Gauge Measurement: 0.35 GU 0.35MM2	View on Amazon
GM GENUINE	13578883	🇺🇸 US 🇨🇦 CA	Multi-PurposeWire Gauge Measurement: 0.80 GU Fitment notes — GM GENUINE 13578883 Multi-PurposeWire Gauge Measurement: 0.80 GU 0.8MM2	View on Amazon

This table covers the terminals crimped onto a harness lead.

Buying Electrical Connector Parts for a 2019 Buick Cascada

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 1.6L 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: Instrument Panel Connector and Blower Motor Control Module / Resistor Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2019 Buick Cascada?

Our catalog currently lists 117 electrical connector parts for the 2019 Buick Cascada across 35 subcategories and 11 brands, covering the 1.6L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.

What are the signs of electrical connector problems on a 2019 Buick Cascada?

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 2019 Buick Cascada 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 2019 Buick Cascada?

Every part on this page is matched to the 1.6L 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 2019 Buick Cascada

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 Cascada Years

2018 Buick Cascada 2017 Buick Cascada 2016 Buick Cascada

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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