This page lists 21 electrical switch & relay parts for the 2021 Kia Forte, across 8 part types, covering both the 1.6L L4 Turbocharged and the 2.0L L4. Every part shows its brand, manufacturer part number and fitment notes.
The switch and relay system on the 2021 Kia Forte covers the switches, relays and flashers that route power to everything the driver touches. The largest groups are Oil Pressure Sender / Switch (9 parts), Brake Light Switch (3 parts) and A/C Refrigerant Pressure Switch (2 parts). The other 5 part types cover the remaining 7 parts.
The 2021 Kia Forte was sold with both the 1.6L L4 Turbocharged and the 2.0L L4. 20 parts fit every engine; the other 1 is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Kia Forte electrical switch & relay parts are HYUNDAI (3 parts), STANDARD MOTOR PRODUCTS (3 parts) and WELLS (3 parts), plus 9 more brands. Quality grades include Standard Replacement and Economy.
2 parts on this 2021 Kia Forte page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BECK/ARNLEY 2011771 (Oil Pressure Sender / Switch) and STANDARD MOTOR PRODUCTS PS411 (Oil Pressure Sender / Switch). Click any part number to see every vehicle that part fits.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2021 Forte engines | V52730043 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Fr Cooler - Dual Full Auto A/CDouble Pipe Ihx | View on Amazon |
This table covers the A/C Pressure Safety switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2021 Kia Forte — VEMO V52730043.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: all 2021 Forte engines | 97721D2000 | 🇺🇸 US | Included with suction tube, hose & tube assembly. | View on Amazon |
| UAC Fits: all 2021 Forte engines | SW9969C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Transducer | View on Amazon |
This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 A/C Refrigerant Pressure Switch parts for the 2021 Kia Forte come from 2 brands — HYUNDAI and UAC. Every part fits both the 1.6L L4 Turbocharged and the 2.0L L4.
Part numbers include HYUNDAI 97721D2000 and UAC SW9969C.
Back Up / Reverse Lamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: all 2021 Forte engines | 2011838 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Manual trans. | View on Amazon |
| HYUNDAI Fits: all 2021 Forte engines | 9386049600 | 🇺🇸 US | View on Amazon |
This table covers the Back Up / Reverse Lamp switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Back Up / Reverse Lamp Switch parts for the 2021 Kia Forte come from 2 brands — BECK/ARNLEY and HYUNDAI. Every part fits both the 1.6L L4 Turbocharged and the 2.0L L4.
Part numbers include BECK/ARNLEY 2011838 and HYUNDAI 9386049600.
Brake Light Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 Forte engines | SLS612 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| VEMO Fits: all 2021 Forte engines | V52730052 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | GT Model | View on Amazon |
| WELLS Fits: all 2021 Forte engines | 1S16381 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Brake Light Switch parts for the 2021 Kia Forte come from 3 brands — STANDARD MOTOR PRODUCTS, VEMO and WELLS. Every part fits both the 1.6L L4 Turbocharged and the 2.0L L4.
Listed part numbers: STANDARD MOTOR PRODUCTS SLS612, VEMO V52730052 and WELLS 1S16381.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 Forte engines | 1S17815 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the ignition switches that feed the starter circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2021 Kia Forte — WELLS 1S17815.
Neutral Safety Switch / Range Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: 2.0L L4 | 427002H000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Neutral Safety Switch / Range sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
This group shows a single part: HYUNDAI 427002H000.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN Fits: all 2021 Forte engines | 2OPS0001 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Forte engines | PS411T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: all 2021 Forte engines | OPS189 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| WALKER PRODUCTS Fits: all 2021 Forte engines | 2561059 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular Fits: all 2021 Forte engines | 2011771 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 Forte engines | PS411 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Terminal Quantity: 1Terminal Type: Blade | View on Amazon |
| HELLA Fits: all 2021 Forte engines | 009600251 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1-Pin Connector | View on Amazon |
| ROSTRA Fits: all 2021 Forte engines | 501242 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | EX Limited or EX Model or EX Premium or EX+ Model or FE Model or GT-Line or LX Model or LXS Model | View on Amazon |
| WELLS Fits: all 2021 Forte engines | 1S6857 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
9 Oil Pressure Sender / Switch parts for the 2021 Kia Forte come from 8 brands — STANDARD MOTOR PRODUCTS, HOLSTEIN, UNITED MOTOR PRODUCTS and 5 other brands. The "Popular" part is BECK/ARNLEY 2011771. Every part fits both the 1.6L L4 Turbocharged and the 2.0L L4.
The Economy section lists 4 options from HOLSTEIN, STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and 1 other brand — the catalog's value-priced group. HOLSTEIN 2OPS0001 is listed in this group.
In the Standard Replacement grade, BECK/ARNLEY, STANDARD MOTOR PRODUCTS, HELLA and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is BECK/ARNLEY 2011771.
Part numbers include BECK/ARNLEY 2011771, HOLSTEIN 2OPS0001 and STANDARD MOTOR PRODUCTS PS411T, among others listed above.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SHEE-MAR Fits: all 2021 Forte engines | SM2808 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwithout Auto Up/Down | View on Amazon |
| SHEE-MAR Fits: all 2021 Forte engines | SM2809 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Leftwith Auto Up/Down | View on Amazon |
This table covers the switches that command each window motor. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Power Window Switch parts for the 2021 Kia Forte come from SHEE-MAR. Every part fits both the 1.6L L4 Turbocharged and the 2.0L L4.
Part numbers include SHEE-MAR SM2808 and SHEE-MAR SM2809.
Buying Electrical Switch & Relay Parts for a 2021 Kia Forte
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Match the engine first. Some electrical switch & relay 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil Pressure Sender / Switch and Brake Light Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Kia Forte?
Our catalog currently lists 21 electrical switch & relay parts for the 2021 Kia Forte across 8 subcategories and 12 brands, covering both the 1.6L L4 Turbocharged and the 2.0L L4. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2021 Kia Forte engines?
Some do. 20 parts fit every engine; the other 1 is 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 switch & relay problems on a 2021 Kia Forte?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
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 Forte 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 Forte?
First match the engine — each row shows which engine(s) the part fits. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Kia Forte
Electrical Switch & Relay Parts for Other Kia Forte Years
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