The 2021 Chevrolet Corvette has 74 electrical switch & relay parts with verified fitment on this page — 35 part types and 9 brands, covering the 6.2L V8 engine. Each part includes a manufacturer part number and application notes.
On the 2021 Chevrolet Corvette, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. 16 parts of the 74 listed are Oil Pressure Sender / Switch (7 parts), Door Lock Switch (5 parts) and Hazard Warning Switch (4 parts). The other 32 part types cover the remaining 58 parts.
The 2021 Chevrolet Corvette came with a single engine, the 6.2L V8, and every part is verified against it.
9 brands supply electrical switch & relay parts for the 2021 Chevrolet Corvette, led by GM GENUINE (34 parts), STANDARD MOTOR PRODUCTS (14 parts) and HOLSTEIN (13 parts), plus 6 more brands. Quality grades include Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Chevrolet Corvette. 3 parts have it, including GM GENUINE 84594513 (Door Lock Switch) and STANDARD MOTOR PRODUCTS PS508 (Oil Pressure Sender / Switch). Each part number opens a page with every vehicle that part fits.
A/C Compressor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13500113 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cut-Out Relay | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the A/C Compressor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
3 A/C Compressor Relay parts are listed for the 2021 Chevrolet Corvette, from GM GENUINE, HOLSTEIN and STANDARD MOTOR PRODUCTS.
Listed part numbers: GM GENUINE 13500113, HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 1551388 | 🇺🇸 US 🇨🇦 CA | Mating Connector Use 86792094with Integrated Circuit | View on Amazon |
| GPD | 1713410 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Transducerwith 3 Terminal(s) | View on Amazon |
| UAC | SW11475C | 🇺🇸 US 🇨🇦 CA | High Pressure Switch | 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.
3 A/C Refrigerant Pressure Switch parts are listed for the 2021 Chevrolet Corvette, from GM GENUINE, GPD and UAC.
This group includes GM GENUINE 1551388, GPD 1713410 and UAC SW11475C.
Accessory Delay Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 96484304 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the relays that control the Accessory Delay circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
This group shows a single part: GM GENUINE 96484304.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Accessory Power Relay parts for the 2021 Chevrolet Corvette come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS.
This group includes HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Cornering Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Cornering Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Cornering Lamp Relay parts for the 2021 Chevrolet Corvette come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS.
Part numbers include HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Cruise Control Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 86585592 | 🇺🇸 US 🇨🇦 CA | BlackSwitch Mounting Type: Screw | View on Amazon |
This table covers the Cruise Control 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.
This group shows a single part: GM GENUINE 86585592.
Daytime Running Light Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Daytime Running Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Daytime Running Light Relay parts are listed for the 2021 Chevrolet Corvette, from HOLSTEIN and STANDARD MOTOR PRODUCTS.
This group includes HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Defroster Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 84095363 | 🇺🇸 US 🇨🇦 CA | 630 ISO Mini Relay | View on Amazon |
This table covers the relays that control the Defroster circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
One part is listed for the 2021 Chevrolet Corvette — GM GENUINE 84095363.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 84865083 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS | 1S17948 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the dimmer switches that select headlamp high and low beam. 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 Dimmer Switch parts for the 2021 Chevrolet Corvette come from 2 brands — GM GENUINE and WELLS.
Part numbers include GM GENUINE 84865083 and WELLS 1S17948.
Door Lock Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 96590287 | 🇺🇸 US 🇨🇦 CA | RearUEC ISO Micro 35A-4P | View on Amazon |
This table covers the relays that control the Door Lock circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
This group shows a single part: GM GENUINE 96590287.
Door Lock Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular | 84594513 | 🇺🇸 US 🇨🇦 CA | Mounting Hardware Included: No | View on Amazon |
| GM GENUINE | 84594511 | 🇺🇸 US 🇨🇦 CA | LeftTBD | View on Amazon |
| GM GENUINE | 85813290 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE | 84460323 | 🇺🇸 US 🇨🇦 CA | Right | View on Amazon |
| GM GENUINE | 84460322 | 🇺🇸 US 🇨🇦 CA | Left | View on Amazon |
This table covers the Door Lock 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.
GM GENUINE supplies the 5 Door Lock Switch parts for the 2021 Chevrolet Corvette. GM GENUINE 84594513 carries the "Popular" badge.
Part numbers include GM GENUINE 84594513, GM GENUINE 84594511 and GM GENUINE 85813290, among others listed above.
Driving Light Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Driving Light circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Driving Light Relay parts for the 2021 Chevrolet Corvette come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS.
Listed part numbers: HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Engine Control Module Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 84095364 | 🇺🇸 US 🇨🇦 CA | 4 Terminal 950 Power Mini | View on Amazon |
This table covers the relays that control the Engine Control Module circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
This group shows a single part: GM GENUINE 84095364.
Fog / Driving Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Fog / Driving Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Fog / Driving Lamp Relay parts are listed for the 2021 Chevrolet Corvette, from HOLSTEIN and STANDARD MOTOR PRODUCTS.
Listed part numbers: HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Fuel Pump / Circuit Opening Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Fuel Pump / Circuit Opening circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Fuel Pump / Circuit Opening Relay parts are listed for the 2021 Chevrolet Corvette, from HOLSTEIN and STANDARD MOTOR PRODUCTS.
Listed part numbers: HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Hands Free Calling Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13440110 | 🇺🇸 US 🇨🇦 CA | Russia Group (MBR), Unauthorized Entry Theft Deterrent (UTJ)Jetbl Trwhit | View on Amazon |
This table covers the Hands Free Calling 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.
This group shows a single part: GM GENUINE 13440110.
Hazard Warning Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 23392579 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE | 84724766 | 🇺🇸 US 🇨🇦 CA | Fits JET BLACKCanada (MBC),Mexico (MCX),UNAUTHORIZED ENTRY THEFT deterrent(UTJ) | View on Amazon |
| WELLS | 1S18102 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Theft Deterrent | View on Amazon |
| WELLS | 1S18125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Theft Deterrent | View on Amazon |
This table covers the Hazard Warning 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.
4 Hazard Warning Switch parts for the 2021 Chevrolet Corvette come from 2 brands — GM GENUINE and WELLS.
Part numbers include GM GENUINE 23392579, GM GENUINE 84724766 and WELLS 1S18102, among others listed above.
Headlamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Headlamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Headlamp Relay parts are listed for the 2021 Chevrolet Corvette, from HOLSTEIN and STANDARD MOTOR PRODUCTS.
Part numbers include HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Heads Up Display (HUD) Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 85822237 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the Heads Up Display (HUD) 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.
This group shows a single part: GM GENUINE 85822237.
Hood Release Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 85880821 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Hood Release 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 Chevrolet Corvette — GM GENUINE 85880821.
Horn Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13500113 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Horn circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
3 Horn Relay parts for the 2021 Chevrolet Corvette come from 3 brands — GM GENUINE, HOLSTEIN and STANDARD MOTOR PRODUCTS.
This group includes GM GENUINE 13500113, HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Ignition Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 84095362 | 🇺🇸 US 🇨🇦 CA | Soft Ride Suspension (FE1) or Sport Suspension (FE3) or Special Ride & Handling Suspension (FE4) | View on Amazon |
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Ignition circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
3 Ignition Relay parts for the 2021 Chevrolet Corvette come from 3 brands — GM GENUINE, HOLSTEIN and STANDARD MOTOR PRODUCTS.
This group includes GM GENUINE 84095362, HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Multi-Function Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1R2208 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
This table covers the relays that control the Multi-Function circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
One part is listed for the 2021 Chevrolet Corvette — WELLS 1R2208.
Neutral Safety Switch / Range Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 85755558 | 🇺🇸 US 🇨🇦 CA | VAA/Component REL Front Console | 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.
One part is listed for the 2021 Chevrolet Corvette — GM GENUINE 85755558.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA | GM1317756 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Material: Aluminum | View on Amazon |
| DORMAN | 926397 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 3 Way with Leadswith Flat Connector | View on Amazon |
| HOLSTEIN | 2OPS0062 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| UNITED MOTOR PRODUCTS | OPS322 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Light | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | PS508 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes Filter Screen | View on Amazon |
| WELLS Popular | 1S12693 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Gender: Female | View on Amazon |
| STANDARD MOTOR PRODUCTS | PS623 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: Rectangle, OvalSensor Only | 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.
7 Oil Pressure Sender / Switch parts are listed for the 2021 Chevrolet Corvette, from STANDARD MOTOR PRODUCTS, AUTOTECNICA, DORMAN and 3 other brands. STANDARD MOTOR PRODUCTS PS508 carries the "Popular" badge.
In the Economy grade, AUTOTECNICA, DORMAN, HOLSTEIN and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is AUTOTECNICA GM1317756.
The Standard Replacement section lists 3 options from STANDARD MOTOR PRODUCTS and WELLS — built to original-equipment specification. STANDARD MOTOR PRODUCTS PS508 is listed in this group.
Part numbers include STANDARD MOTOR PRODUCTS PS508, AUTOTECNICA GM1317756 and DORMAN 926397, among others listed above.
Overdrive Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 85737349 | 🇺🇸 US 🇨🇦 CA | LeftPaddle | View on Amazon |
| GM GENUINE | 85737350 | 🇺🇸 US 🇨🇦 CA | RightPaddle | View on Amazon |
| GM GENUINE | 85737351 | 🇺🇸 US 🇨🇦 CA | LeftSuede Interior Configuration/Color(HFC),Interior Trim Configuration/Color(HT7),Auto Heat Steering Wheel(KI3),Suede Steering Wheel (N26) | View on Amazon |
| GM GENUINE | 85737352 | 🇺🇸 US 🇨🇦 CA | RightSuede Interior Configuration/Color (HFC), Interior Trim Configuration/Color (HT7), Steering Wheel with Automatic Heat (KI3), Suede Steering Wheel (N26) | View on Amazon |
This table covers the Overdrive 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.
4 Overdrive Switch parts for the 2021 Chevrolet Corvette come from GM GENUINE.
Listed part numbers: GM GENUINE 85737349, GM GENUINE 85737350 and GM GENUINE 85737351, plus the other parts above.
Parking Lamp Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Parking Lamp circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Parking Lamp Relay parts are listed for the 2021 Chevrolet Corvette, from HOLSTEIN and STANDARD MOTOR PRODUCTS.
Listed part numbers: HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 85062708 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE | 85821758 | 🇺🇸 US 🇨🇦 CA | Black | 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.
GM GENUINE supplies both parts for the 2021 Chevrolet Corvette.
Listed part numbers: GM GENUINE 85062708 and GM GENUINE 85821758.
Radiator Fan Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0042 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Motor Relay | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY862 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amperage Rating: 20 AFunctions: Multi-Function Relay | View on Amazon |
This table covers the relays that control the Radiator Fan circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Radiator Fan Relay parts for the 2021 Chevrolet Corvette come from 2 brands — HOLSTEIN and STANDARD MOTOR PRODUCTS.
Part numbers include HOLSTEIN 2RSW0042 and STANDARD MOTOR PRODUCTS RY862.
Starter Motor Control Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 96484304 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the relays that control the Starter Motor Control circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
This group shows a single part: GM GENUINE 96484304.
Trunk Lid / Tailgate Release Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 23372455 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE | 84619122 | 🇺🇸 US 🇨🇦 CA | LeftJet Black | View on Amazon |
This table covers the Trunk Lid / Tailgate Release 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 Trunk Lid / Tailgate Release Switch parts for the 2021 Chevrolet Corvette come from GM GENUINE.
This group includes GM GENUINE 23372455 and GM GENUINE 84619122.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13555285 | 🇺🇸 US 🇨🇦 CA | LABELED 13555285, 13550730, 13545935Exc. Rear Fog Lamps (T79) | View on Amazon |
| WELLS | 1S17947 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Automatic Headlight Dimmer | View on Amazon |
| WELLS | 1S17948 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | without Automatic Headlight Dimmer | View on Amazon |
This table covers the combination / turn-signal 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.
3 Turn Signal Switch parts are listed for the 2021 Chevrolet Corvette, from WELLS and GM GENUINE.
Part numbers include GM GENUINE 13555285, WELLS 1S17947 and WELLS 1S17948.
Washer Pump Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13500113 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| WELLS | 1R2208 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | View on Amazon |
This table covers the relays that control the Washer Pump circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
2 Washer Pump Relay parts are listed for the 2021 Chevrolet Corvette, from GM GENUINE and WELLS.
Listed part numbers: GM GENUINE 13500113 and WELLS 1R2208.
Wiper / Washer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13545934 | 🇺🇸 US 🇨🇦 CA | Switch Activation Type: Pull,Push,Twist | View on Amazon |
This table covers the Wiper / Washer 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.
This group shows a single part: GM GENUINE 13545934.
Wiper Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 96484304 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the relays that control the Wiper Motor circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
One part is listed for the 2021 Chevrolet Corvette — GM GENUINE 96484304.
Buying Electrical Switch & Relay Parts for a 2021 Chevrolet Corvette
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- Confirm you have the 6.2L V8 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, 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 Door Lock Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Chevrolet Corvette?
Our catalog currently lists 74 electrical switch & relay parts for the 2021 Chevrolet Corvette across 35 subcategories and 9 brands, covering the 6.2L V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2021 Chevrolet Corvette?
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 Chevrolet Corvette 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 Chevrolet Corvette?
Every part on this page is matched to the 6.2L V8 engine. 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 Chevrolet Corvette
Electrical Switch & Relay Parts for Other Chevrolet Corvette 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.