2019 Toyota 4RUNNER Electrical Connector Parts

Engine:
4.0L V6

The 2019 Toyota 4RUNNER has 71 electrical connector parts with verified fitment on this page — 35 part types and 11 brands, covering the 4.0L V6 engine. Each part includes a manufacturer part number and application notes.

The connector system on the 2019 Toyota 4RUNNER supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are ABS Wheel Speed Sensor Connector (13 parts), Trailer Connector (13 parts) and Ignition Coil Connector (5 parts). The other 32 part types cover the remaining 40 parts.

A/C Compressor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2539
🇺🇸 US 🇨🇦 CA
with 3 Female Terminals
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
STANDARD MOTOR PRODUCTS S2896
🇺🇸 US 🇨🇦 CA
Gender: MaleTerminal Type: Blade
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
HOLSTEIN Popular 2ABS4912
🇺🇸 US 🇨🇦 CA
Fits Front Left4WD
Fitment notes — HOLSTEIN 2ABS4912
Fits:
Front Left4WDBody code GRN285
or:
Front LeftRWDBody code GRN280
View on
Amazon
HOLSTEIN Popular 2ABS4911
🇺🇸 US 🇨🇦 CA
Fits Front Right4WD
Fitment notes — HOLSTEIN 2ABS4911
Fits:
Front Right4WDBody code GRN285
or:
Front RightRWDBody code GRN280
View on
Amazon
ULTRA-POWER Popular 1P3550
🇺🇸 US 🇨🇦 CA
Front RightAbs Connector
Fitment notes — ULTRA-POWER 1P3550
Front RightAbs ConnectorSENSOR WIRE HARNESS
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Amazon
HOLSTEIN 2ABS4913
🇺🇸 US 🇨🇦 CA
Fits Rear4WD
Fitment notes — HOLSTEIN 2ABS4913
Fits:
Rear4WDBody code GRN285
or:
RearRWDBody code GRN280
View on
Amazon
STANDARD MOTOR PRODUCTS S2988
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalTerminal Type: Blade
Fitment notes — STANDARD MOTOR PRODUCTS S2988
Connector Shape: OvalTerminal Type: BladeFront
View on
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STANDARD MOTOR PRODUCTS ALH130
🇺🇸 US 🇨🇦 CA
Front Right
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STANDARD MOTOR PRODUCTS ALH151
🇺🇸 US 🇨🇦 CA
Front Left
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STANDARD MOTOR PRODUCTS ALH148
🇺🇸 US 🇨🇦 CA
Rear Center
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ULTRA-POWER 1P3549
🇺🇸 US 🇨🇦 CA
Front LeftABS Connector
Fitment notes — ULTRA-POWER 1P3549
Front LeftABS ConnectorSensor Wire Harness~
View on
Amazon
ULTRA-POWER 1P3548
🇺🇸 US 🇨🇦 CA
ABS ConnectorRear
Fitment notes — ULTRA-POWER 1P3548
ABS ConnectorRearSensor Wire Harness
View on
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WELLS 1P3549
🇺🇸 US 🇨🇦 CA
Front Left
View on
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WELLS 1P3550
🇺🇸 US 🇨🇦 CA
Front Right
View on
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WELLS 1P3548
🇺🇸 US 🇨🇦 CA
Rear
View on
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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 S2815
🇺🇸 US 🇨🇦 CA
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.

Alternator / Generator Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2548
🇺🇸 US 🇨🇦 CA
View on
Amazon

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

Ambient Air Temperature Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S986
🇺🇸 US 🇨🇦 CA
View on
Amazon

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

Blower Motor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S3208
🇺🇸 US 🇨🇦 CA
Front
View on
Amazon

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

Camshaft Position Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2837
🇺🇸 US 🇨🇦 CA
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
STANDARD MOTOR PRODUCTS S2808
🇺🇸 US 🇨🇦 CA
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.

Fog / Driving Lamp Connector

Brand Part Number Markets Notes Buy
WELLS 1P1032
🇺🇸 US 🇨🇦 CA
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 Injector Connector

Brand Part Number Markets Notes Buy
GB REMANUFACTURING 5188
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS S2328
🇺🇸 US 🇨🇦 CA
Connector Shape: Rectangular, OvalTerminal Quantity: 2
View on
Amazon

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

Fuel Sending Unit Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2873
🇺🇸 US 🇨🇦 CA
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.

Ignition Coil Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS Popular S2527
🇺🇸 US 🇨🇦 CA
Complete Assembly
View on
Amazon
FVP UF487F
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS S3291
🇺🇸 US 🇨🇦 CA
with Housing
View on
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UNITED MOTOR PRODUCTS CON208
🇺🇸 US 🇨🇦 CA
View on
Amazon
WALKER PRODUCTS 2701082
🇺🇸 US 🇨🇦 CA
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.

Knock / Detonation Sensor Connector

Brand Part Number Markets Notes Buy
DORMAN 926769
🇺🇸 US 🇨🇦 CA
View on
Amazon
STANDARD MOTOR PRODUCTS S2328
🇺🇸 US 🇨🇦 CA
Connector Shape: Rectangular, OvalTerminal Quantity: 2
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.

Mass Air Flow (MAF) Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S1712
🇺🇸 US 🇨🇦 CA
Connector Shape: Oval
Fitment notes — STANDARD MOTOR PRODUCTS S1712
Connector Shape: Oval
Blackwith 5 Female Terminals
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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
STANDARD MOTOR PRODUCTS S2538
🇺🇸 US 🇨🇦 CA
Graywith 1 Female Terminals
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
STANDARD MOTOR PRODUCTS S1804
🇺🇸 US 🇨🇦 CA
LeftDownstream Sensor
Fitment notes — STANDARD MOTOR PRODUCTS S1804
LeftDownstream SensorColor Code Black and Whitewith 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.

Park Assist (PAS) Camera Connector

Brand Part Number Markets Notes Buy
METRA AXDSPXTY3
🇺🇸 US 🇨🇦 CA
Camera Add-On Package
View on
Amazon
STANDARD MOTOR PRODUCTS S3297
🇺🇸 US 🇨🇦 CA
Rear
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
STANDARD MOTOR PRODUCTS HP3985
🇺🇸 US 🇨🇦 CA
Handypack
Fitment notes — STANDARD MOTOR PRODUCTS HP3985
Handypack
Front And Rear
View on
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STANDARD MOTOR PRODUCTS S1415
🇺🇸 US 🇨🇦 CA
Number of Splice Connectors Included: 2
Fitment notes — STANDARD MOTOR PRODUCTS S1415
Number of Splice Connectors Included: 2
Front And Rear
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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.

Radio Connector

Brand Part Number Markets Notes Buy
METRA AXSWCHT28
🇺🇸 US 🇨🇦 CA
Plug And Play Harness
View on
Amazon

This table covers the harness connectors at the Radio. 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.

Side Marker Lamp Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S1530
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S1530
Connector Shape: OvalHarness LengthInches: 17Splice Connectors Included: NoblackFront
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This table covers the harness connectors at the Side Marker 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.

Speed Sensor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S1530
🇺🇸 US 🇨🇦 CA
Connector Shape: OvalHarness Length
Fitment notes — STANDARD MOTOR PRODUCTS S1530
Connector Shape: OvalHarness LengthInches: 17Splice Connectors Included: Noblack
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UNITED MOTOR PRODUCTS CON26
🇺🇸 US 🇨🇦 CA
View on
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WELLS 1P1876
🇺🇸 US 🇨🇦 CA
Transmission SpeedAutomatic Trans.
View on
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This table covers the harness connectors at the Speed Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.

Starter Solenoid Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2549
🇺🇸 US 🇨🇦 CA
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
STANDARD MOTOR PRODUCTS S1923
🇺🇸 US 🇨🇦 CA
Connector Shape: RectangleWiring Harness Length (mm): 508
View on
Amazon
UNITED MOTOR PRODUCTS CON57
🇺🇸 US 🇨🇦 CA
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 S2817
🇺🇸 US 🇨🇦 CA
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.

Trailer Adapter Connector

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

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

Trailer Brake Switch Connector

Brand Part Number Markets Notes Buy
CURT 51362
🇺🇸 US 🇨🇦 CA
Brake Control Adapter HarnessIncludes OEM Connector, 2 ft. Wire, Protective Sleeve, and 12 Gauge Wire
Fitment notes — CURT 51362
Brake Control Adapter HarnessIncludes OEM Connector, 2 ft. Wire, Protective Sleeve, and 12 Gauge Wire
with Quick Plug
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Amazon
CURT 51363
🇺🇸 US 🇨🇦 CA
Brake Control Adapter HarnessIncludes OEM Connector, 2 ft. Wire, Protective Sleeve, and 12 Gauge Wire
Fitment notes — CURT 51363
Brake Control Adapter HarnessIncludes OEM Connector, 2 ft. Wire, Protective Sleeve, and 12 Gauge Wire
with Quick Plug
View on
Amazon

This table covers the harness connectors at the Trailer Brake 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.

Trailer Connector

Brand Part Number Markets Notes Buy
CURT Popular 55415
🇺🇸 US 🇨🇦 CA
Replacement 7-Way RV Blade OEM Socket
Fitment notes — CURT 55415
Replacement 7-Way RV Blade OEM Socket
with Factory Tow Package
View on
Amazon
CURT Popular 56229
🇺🇸 US 🇨🇦 CA
7-Way USCAR Electrical ConnectorLength: 24 in.
Fitment notes — CURT 56229
7-Way USCAR Electrical ConnectorLength: 24 in.Bonded Wire
with Factory Tow Package
View on
Amazon
STANDARD MOTOR PRODUCTS Popular TC656
🇺🇸 US 🇨🇦 CA
with Towing PackageOE Style
View on
Amazon
CURT 56415
🇺🇸 US 🇨🇦 CA
Replacement 7-Way RV Blade OEM SocketTwist-In
Fitment notes — CURT 56415
Replacement 7-Way RV Blade OEM SocketTwist-In
with Factory Tow Package
View on
Amazon
CURT 55515
🇺🇸 US 🇨🇦 CA
Custom Wiring ConnectorOE 4-Way Flat
Fitment notes — CURT 55515
Custom Wiring ConnectorOE 4-Way FlatPlugs Into USCAR
Replacement2-Wire Systemwith Factory Tow Package
View on
Amazon
CURT 56515
🇺🇸 US 🇨🇦 CA
Custom Wiring Connector5-Way Flat
Fitment notes — CURT 56515
Custom Wiring Connector5-Way Flat
2-Wire Systemwith Factory Tow Package
View on
Amazon
CURT 55774
🇺🇸 US 🇨🇦 CA
OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way
Fitment notes — CURT 55774
OEM Vehicle to Trailer Connector with Harness7-Way and 4-Way
with Factory Tow Package
View on
Amazon
CURT 57015
🇺🇸 US 🇨🇦 CA
OEM Replacement Dual-Output 7 and 4 Way ConnectorPlugs Into USCAR Socket
View on
Amazon
CURT 55384
🇺🇸 US 🇨🇦 CA
Custom Wiring Connector4-Way Flat
Fitment notes — CURT 55384
Custom Wiring Connector4-Way FlatRetains Use of 7 Way Round Connector
2-Wire Systemwith Factory Tow Package
View on
Amazon
CURT 57020
🇺🇸 US 🇨🇦 CA
OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged
Fitment notes — CURT 57020
OEM Replacement Dual-Output 7 and 4 Way ConnectorPackaged
Factory TowPlugs Into USCAR
View on
Amazon
CURT 56584
🇺🇸 US 🇨🇦 CA
Custom Wiring Harness5-Way Flat
Fitment notes — CURT 56584
Custom Wiring Harness5-Way FlatRetains Use Of 7-Way OEM
2-Wire Systemwith Factory Tow Package
View on
Amazon
STANDARD MOTOR PRODUCTS TC654
🇺🇸 US 🇨🇦 CA
with Towing Packagewith 7 Way
View on
Amazon
WELLS 4T1242
🇺🇸 US 🇨🇦 CA
Flat 4 to OE Plug
View on
Amazon

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

Trailer Extension Connector

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

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

Transmission-Automatic Wiring Harness / Connector

Brand Part Number Markets Notes Buy
DORMAN 926383
🇺🇸 US 🇨🇦 CA
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.

Turn Signal Switch Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2539
🇺🇸 US 🇨🇦 CA
Front
View on
Amazon

This table covers the harness connectors at the Turn Signal 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.

Vapor Canister Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S2818
🇺🇸 US 🇨🇦 CA
Gauge: 20 Gauge
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.

Variable Valve Timing (VVT) Solenoid Connector

Brand Part Number Markets Notes Buy
WALKER PRODUCTS 2701102
🇺🇸 US 🇨🇦 CA
Fits Exhaust (Left)Incl.Oil Control Valve
Fitment notes — WALKER PRODUCTS 2701102
Fits:
Exhaust (Left)Incl.Oil Control Valve
or:
RightIncl.Oil Control Valv
or:
Intake (Left)Incl.Oil Control Valve
View on
Amazon

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

Washer Pump Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S3083
🇺🇸 US 🇨🇦 CA
Connector Shape: Rectangle
View on
Amazon

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

Wiper Motor Connector

Brand Part Number Markets Notes Buy
STANDARD MOTOR PRODUCTS S1423
🇺🇸 US 🇨🇦 CA
Front Unit
View on
Amazon

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

Buying Electrical Connector Parts for a 2019 Toyota 4RUNNER

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 4.0L V6 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: ABS Wheel Speed Sensor Connector and Trailer Connector .

Frequently Asked Questions

How many electrical connector parts fit the 2019 Toyota 4RUNNER?

Our catalog currently lists 71 electrical connector parts for the 2019 Toyota 4RUNNER across 35 subcategories and 11 brands, covering the 4.0L V6 engine. Each part is matched to the engine(s) it fits.

What are the signs of electrical connector problems on a 2019 Toyota 4RUNNER?

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 Toyota 4RUNNER 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 Toyota 4RUNNER?

Every part on this page is matched to the 4.0L V6 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 Toyota 4RUNNER

Electrical Connector Parts for Other Toyota 4RUNNER Years

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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.