37 Electrical connector parts are listed for the 2021 Kia Soul, in 18 part types, covering all 3 engine options (1.6L L4 Turbocharged, 2.0L L4 and ELECTRIC). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Kia Soul, the connector system supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. Most of the listed parts are Variable Valve Timing (VVT) Solenoid Connector (6 parts), Knock / Detonation Sensor Connector (5 parts) and Blower Motor Control Module / Resistor Connector (4 parts). The other 15 part types cover the remaining 22 parts.
The 2021 Kia Soul was sold with 3 engines. 1 part fits every engine; the other 36 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Kia Soul electrical connector parts are STANDARD MOTOR PRODUCTS (26 parts), ACDELCO (4 parts) and WALKER PRODUCTS (2 parts), plus 5 more brands.
2 parts on this 2021 Kia Soul page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO PT2386 (Variable Valve Timing (VVT) Solenoid Connector) and STANDARD MOTOR PRODUCTS TX3A (Variable Valve Timing (VVT) Solenoid Connector). Click any part number to see every vehicle that part fits.
Alternator / Generator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S2533 | 🇺🇸 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S2533.
Blower Motor Control Module / Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: 1.6L L4 Turbocharged, 2.0L L4 | 2HAR0001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | HP4145 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S1519 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: RectangleContact Terminal Material: Metal | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S1519HT | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black | 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.
4 Blower Motor Control Module / Resistor Connector parts for the 2021 Kia Soul come from 2 brands — STANDARD MOTOR PRODUCTS and HOLSTEIN.
This group includes HOLSTEIN 2HAR0001, STANDARD MOTOR PRODUCTS HP4145 and STANDARD MOTOR PRODUCTS S1519 and the remaining parts above.
Brake Fluid Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 1.6L L4 Turbocharged, 2.0L L4 | PT2164 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | HP3860 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S697 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: RectangleHarness Length | View on Amazon |
This table covers the harness connectors at the Brake Fluid Level Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
3 Brake Fluid Level Sensor Connector parts for the 2021 Kia Soul come from 2 brands — STANDARD MOTOR PRODUCTS and ACDELCO.
Listed part numbers: ACDELCO PT2164, STANDARD MOTOR PRODUCTS HP3860 and STANDARD MOTOR PRODUCTS S697.
Camshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Fits: 1.6L L4 Turbocharged | 2701089 | 🇺🇸 US 🇨🇦 CA | Cam Position Sensor Connector | View on Amazon |
| WALKER PRODUCTS Fits: 1.6L L4 Turbocharged | 2701089 | 🇺🇸 US | 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.
2 Camshaft Position Sensor Connector parts are listed for the 2021 Kia Soul, from ULTRA-POWER and WALKER PRODUCTS.
Listed part numbers: ULTRA-POWER 2701089, plus the other parts above.
Crankshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3064 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Start/Stop Feature | View on Amazon |
| WALKER PRODUCTS Fits: 2.0L L4 | 2701098 | 🇺🇸 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.
2 Crankshaft Position Sensor Connector parts are listed for the 2021 Kia Soul, from STANDARD MOTOR PRODUCTS and WALKER PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS S3064 and WALKER PRODUCTS 2701098.
Fuel Tank Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Fuel Tank Pressure Sensor. Typical signs include an intermittent fault that moves when you wiggle the plug, green corrosion, or a melted housing. Match terminal count and keyway, not just color. Many families look identical and will not lock.
This group shows a single part: STANDARD MOTOR PRODUCTS S3121.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S2894.
Knock / Detonation Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 2.0L L4 | PT2309 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged | HP4325 | 🇺🇸 US | HandypackConnector Shape: Rectangle | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged | S1024 | 🇺🇸 US | Connector Shape: RectangleHarness Length | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | HP4750 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | S578 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalGauge: 18 | 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.
5 Knock / Detonation Sensor Connector parts are listed for the 2021 Kia Soul, from STANDARD MOTOR PRODUCTS and ACDELCO.
Part numbers include ACDELCO PT2309, STANDARD MOTOR PRODUCTS HP4325 and STANDARD MOTOR PRODUCTS S1024, among others listed above.
Oxygen (O2) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged | S3133 | 🇺🇸 US | Downstream Sensor | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S1419 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalGender: Female | 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Kia Soul.
Part numbers include STANDARD MOTOR PRODUCTS S3133 and STANDARD MOTOR PRODUCTS S1419.
Parking Aid Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S3223.
Radiator Fan Resistor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Harness LengthCM: 37 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3308 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with 2 Terminal(s) | View on Amazon |
This table covers the harness connectors at the Radiator Fan Resistor. 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Kia Soul.
This group includes STANDARD MOTOR PRODUCTS S3162 and STANDARD MOTOR PRODUCTS S3308.
Radio Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRA Fits: all 2021 Soul engines | AXUSBHK2 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | USB Adapter Cable 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.
This group shows a single part: METRA AXUSBHK2.
Temperature Sender / Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3094 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S3094.
Throttle Control Actuator Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S2817 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S2817.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT Fits: 1.6L L4 Turbocharged, 2.0L L4 | 56442 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Custom Wiring Harness4-Way Flat Output | View on Amazon |
| TEKONSHA Fits: 1.6L L4 Turbocharged, 2.0L L4 | 118813 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-One Connector Assemblywith Upgraded Circuit Protected Modu Lite HD Module | 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.
2 Trailer Connector parts for the 2021 Kia Soul come from 2 brands — CURT and TEKONSHA.
Listed part numbers: CURT 56442 and TEKONSHA 118813.
Vapor Canister Purge Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | S1414 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: RectangleTerminal Type: Blade | View on Amazon |
This table covers the harness connectors at the Vapor Canister Purge 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S1414.
Variable Valve Timing (VVT) Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: 2.0L L4 | PT2386 | 🇺🇸 US 🇨🇦 CA | GoldShape: Square | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 | TX3A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wiring Harness Length (mm): 158.75Black | View on Amazon |
| ACDELCO Fits: 2.0L L4 | PT2301 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | HP3840 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackWiring Harness Length (mm): 158.75 | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | HP4420 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 | S556 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Exhaust | 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.
6 Variable Valve Timing (VVT) Solenoid Connector parts are listed for the 2021 Kia Soul, from STANDARD MOTOR PRODUCTS and ACDELCO. ACDELCO PT2386 carries the "Popular" badge.
Part numbers include ACDELCO PT2386, STANDARD MOTOR PRODUCTS TX3A and ACDELCO PT2301, among others listed above.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.6L L4 Turbocharged, 2.0L L4 | S3131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2021 Kia Soul — STANDARD MOTOR PRODUCTS S3131.
Buying Electrical Connector Parts for a 2021 Kia Soul
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. Some electrical connector parts fit every engine; others are 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: Variable Valve Timing (VVT) Solenoid Connector and Knock / Detonation Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2021 Kia Soul?
Our catalog currently lists 37 electrical connector parts for the 2021 Kia Soul across 18 subcategories and 8 brands, covering all 3 engine options (1.6L L4 Turbocharged, 2.0L L4 and ELECTRIC). Each part is matched to the engine(s) it fits.
Do electrical connector parts differ between 2021 Kia Soul engines?
Some do. 1 part fits every engine; the other 36 are engine-specific. Each row (and the filter at the top) shows which. 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 Kia Soul?
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 Kia Soul 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 Kia Soul?
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 Kia Soul
Electrical Connector Parts for Other Kia Soul Years
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