This page lists 40 electrical connector parts for the 2018 Kia Niro, across 22 part types, covering the 1.6L L4 ELECTRIC/GAS engine. Every part shows its brand, manufacturer part number and fitment notes.
The connector system on the 2018 Kia Niro supplies the pigtails and connector bodies that terminate the vehicle harness at lamps, sensors and modules. The largest groups are Fog / Driving Lamp Connector (4 parts), Brake Fluid Level Sensor Connector (3 parts) and Knock / Detonation Sensor Connector (3 parts). The other 19 part types cover the remaining 30 parts.
The 2018 Kia Niro came with a single engine, the 1.6L L4 ELECTRIC/GAS, and every part is verified against it.
11 brands supply electrical connector parts for the 2018 Kia Niro, led by STANDARD MOTOR PRODUCTS (23 parts), WALKER PRODUCTS (4 parts) and ACDELCO (3 parts), plus 8 more brands.
Each part number listed for the 2018 Kia Niro opens a page with every vehicle that part fits.
Ambient Air Temperature Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2964 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Oval | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S2964.
Brake Fluid Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2164 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP3860 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackTerminal Type: Blade | View on Amazon |
| STANDARD MOTOR PRODUCTS | 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 are listed for the 2018 Kia Niro, from STANDARD MOTOR PRODUCTS and ACDELCO.
This group includes ACDELCO PT2164, STANDARD MOTOR PRODUCTS HP3860 and STANDARD MOTOR PRODUCTS S697.
Camshaft Position Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER | 2701089 | 🇺🇸 US 🇨🇦 CA | Cam Position Sensor ConnectorCYLINDER HEAD | View on Amazon |
| WALKER PRODUCTS | 2701089 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Location-Cylinder Head | 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 for the 2018 Kia Niro come from 2 brands — ULTRA-POWER and WALKER PRODUCTS.
Part numbers include ULTRA-POWER 2701089, among others listed above.
EGR Valve Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP | SKS575 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | S2900 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular, N/A | View on Amazon |
This table covers the harness connectors at the EGR Valve. 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 EGR Valve Connector parts for the 2018 Kia Niro come from 2 brands — SKP and STANDARD MOTOR PRODUCTS.
This group includes SKP SKS575 and STANDARD MOTOR PRODUCTS S2900.
Fog / Driving Lamp Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2298 | 🇺🇸 US 🇨🇦 CA | GoldHeight (In): 1.5 in | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP3835 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS | S553 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalContact Terminal Material: Metal | View on Amazon |
| WELLS | 1P1032 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
4 Fog / Driving Lamp Connector parts for the 2018 Kia Niro come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and WELLS.
Listed part numbers: ACDELCO PT2298, STANDARD MOTOR PRODUCTS HP3835 and STANDARD MOTOR PRODUCTS S553, plus the other parts above.
Fuel Injection Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2HAR0060 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on Fuel Pump | View on Amazon |
| STANDARD MOTOR PRODUCTS | S2316 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalNumber of Splice Connectors Included: 3 | View on Amazon |
This table covers the harness connectors at the Fuel Injection 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.
2 Fuel Injection Pressure Sensor Connector parts for the 2018 Kia Niro come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS.
Part numbers include HOLSTEIN 2HAR0060 and STANDARD MOTOR PRODUCTS S2316.
Fuel Tank Pressure Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | 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.
One part is listed for the 2018 Kia Niro — STANDARD MOTOR PRODUCTS S3121.
Ignition Coil Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S2894.
Knock / Detonation Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PT2309 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| STANDARD MOTOR PRODUCTS | HP4750 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS | 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.
3 Knock / Detonation Sensor Connector parts for the 2018 Kia Niro come from 2 brands — STANDARD MOTOR PRODUCTS and ACDELCO.
Listed part numbers: ACDELCO PT2309, STANDARD MOTOR PRODUCTS HP4750 and STANDARD MOTOR PRODUCTS S578.
Manifold Pressure (MAP) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S1461 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | CON222 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS | 2701119 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the harness connectors at the Manifold Pressure (MAP) 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 Manifold Pressure (MAP) Sensor Connector parts for the 2018 Kia Niro come from 3 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WALKER PRODUCTS.
This group includes STANDARD MOTOR PRODUCTS S1461, UNITED MOTOR PRODUCTS CON222 and WALKER PRODUCTS 2701119.
Mass Air Flow (MAF) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2900 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangular, N/A | 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.
One part is listed for the 2018 Kia Niro — STANDARD MOTOR PRODUCTS S2900.
Oil Pressure Sender / Switch Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3077 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2018 Kia Niro — STANDARD MOTOR PRODUCTS S3077.
Oxygen (O2) Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3133 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Downstream Sensor | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S3133.
Parking Aid Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3223 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S3223.
Radiator Fan Motor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S3162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Harness LengthCM: 37 | View on Amazon |
This table covers the harness connectors at the Radiator Fan 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S3162.
Radio Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| METRA | AXUSBHK2 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | USB Adapter Cable Harness | View on Amazon |
| METRA | 707306 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Radio Wire HarnessFor Aftermarket Radio | View on Amazon |
| METRA | 717306 | 🇺🇸 US 🇨🇦 CA | To radioNon-Amplified | 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.
METRA supplies the 3 Radio Connector parts for the 2018 Kia Niro.
This group includes METRA AXUSBHK2, METRA 707306 and METRA 717306.
Trailer Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CURT | 56376 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Custom Wiring Harness4-Way Flat | View on Amazon |
| TEKONSHA | 118749 | 🇺🇸 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 are listed for the 2018 Kia Niro, from CURT and TEKONSHA.
This group includes CURT 56376 and TEKONSHA 118749.
Vapor Canister Purge Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4720 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS | S575 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalHarness Length | View on Amazon |
| WALKER PRODUCTS | 2701130 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Gender: MaleWiring Harness Length: 180.00 mm | 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.
3 Vapor Canister Purge Valve / Solenoid Connector parts for the 2018 Kia Niro come from 2 brands — STANDARD MOTOR PRODUCTS and WALKER PRODUCTS.
Listed part numbers: STANDARD MOTOR PRODUCTS HP4720, STANDARD MOTOR PRODUCTS S575 and WALKER PRODUCTS 2701130.
Vapor Canister Vent Valve / Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4625 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackTerminal Type: Blade Terminals | View on Amazon |
| STANDARD MOTOR PRODUCTS | S1350 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length (In): 1.125Terminal Type: Blade Terminals | 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.
2 Vapor Canister Vent Valve / Solenoid Connector parts for the 2018 Kia Niro come from STANDARD MOTOR PRODUCTS.
Part numbers include STANDARD MOTOR PRODUCTS HP4625 and STANDARD MOTOR PRODUCTS S1350.
Variable Valve Timing (VVT) Solenoid Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS | 2701102 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ExhaustIncl.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.
This group shows a single part: WALKER PRODUCTS 2701102.
Washer Fluid Level Sensor Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | S2921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalTerminal Type: Blade | View on Amazon |
This table covers the harness connectors at the Washer 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S2921.
Washer Pump Connector
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | 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.
This group shows a single part: STANDARD MOTOR PRODUCTS S3131.
Buying Electrical Connector Parts for a 2018 Kia Niro
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 ELECTRIC/GAS 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: Fog / Driving Lamp Connector and Brake Fluid Level Sensor Connector .
Frequently Asked Questions
How many electrical connector parts fit the 2018 Kia Niro?
Our catalog currently lists 40 electrical connector parts for the 2018 Kia Niro across 22 subcategories and 11 brands, covering the 1.6L L4 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical connector problems on a 2018 Kia Niro?
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 2018 Kia Niro 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 2018 Kia Niro?
Every part on this page is matched to the 1.6L L4 ELECTRIC/GAS 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 2018 Kia Niro
Electrical Connector Parts for Other Kia Niro Years
Switch vehicle or jump to a subcategory
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.