39 Electrical switch & relay parts are listed for the 2021 Honda Pilot, in 14 part types, covering the 3.5L V6 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Honda Pilot, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Oil Pressure Sender / Switch (6 parts), Brake Light Switch (5 parts) and Power Window Switch (4 parts). The other 11 part types cover the remaining 24 parts.
The 2021 Honda Pilot came with a single engine, the 3.5L V6, and every part is verified against it.
12 brands supply electrical switch & relay parts for the 2021 Honda Pilot, led by STANDARD MOTOR PRODUCTS (13 parts), WELLS (6 parts) and HOLSTEIN (5 parts), plus 9 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Honda Pilot. 3 parts have it, including STANDARD MOTOR PRODUCTS SLS589 (Brake Light Switch) and BECK/ARNLEY 2012716 (Oil Pressure Sender / Switch). Each part number opens a page with every vehicle that part fits.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V26730082 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black Edition or EX Model or EX-L Model or Elite or LX Model or Special Edition or Touring | 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.
This group shows a single part: VEMO V26730082.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FOUR SEASONS | 37312 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pressure Switch | View on Amazon |
| UAC | SW9970C | 🇺🇸 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 are listed for the 2021 Honda Pilot, from FOUR SEASONS and UAC.
Part numbers include FOUR SEASONS 37312 and UAC SW9970C.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0025 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY1052T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY721 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
3 Accessory Power Relay parts for the 2021 Honda Pilot come from 2 brands — STANDARD MOTOR PRODUCTS and HOLSTEIN.
Listed part numbers: HOLSTEIN 2RSW0025, STANDARD MOTOR PRODUCTS RY1052T and STANDARD MOTOR PRODUCTS RY721.
Blower Motor Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0025 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY1052T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY721 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the relays that control the Blower 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.
3 Blower Motor Relay parts are listed for the 2021 Honda Pilot, from STANDARD MOTOR PRODUCTS and HOLSTEIN.
Listed part numbers: HOLSTEIN 2RSW0025, STANDARD MOTOR PRODUCTS RY1052T and STANDARD MOTOR PRODUCTS RY721.
Brake Light Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2BLS0030 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | SLS589 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color/Finish: Blue, White | View on Amazon |
| BECK/ARNLEY | 2012753 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| ROSTRA | 620182 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S17041 | 🇺🇸 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.
5 Brake Light Switch parts are listed for the 2021 Honda Pilot, from HOLSTEIN, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 2 other brands. STANDARD MOTOR PRODUCTS SLS589 carries the "Popular" badge.
In the Economy grade, HOLSTEIN supplies 1 part: the catalog's value-priced group. A representative part number is HOLSTEIN 2BLS0030.
The Standard Replacement section lists 3 options from STANDARD MOTOR PRODUCTS, BECK/ARNLEY and ROSTRA — built to original-equipment specification. STANDARD MOTOR PRODUCTS SLS589 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
This group includes STANDARD MOTOR PRODUCTS SLS589, HOLSTEIN 2BLS0030 and BECK/ARNLEY 2012753 and the remaining parts above.
Defroster Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2RSW0025 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS | RY1052T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY721 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
3 Defroster Relay parts are listed for the 2021 Honda Pilot, from STANDARD MOTOR PRODUCTS and HOLSTEIN.
This group includes HOLSTEIN 2RSW0025, STANDARD MOTOR PRODUCTS RY1052T and STANDARD MOTOR PRODUCTS RY721.
Fuel Pump / Circuit Opening Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ROSTRA | 600069 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 1R1631 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Mounting Hardware Included: No | 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 Honda Pilot, from ROSTRA and WELLS.
This group includes ROSTRA 600069 and WELLS 1R1631.
Ignition Starter Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1S15405 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Push Button Switch | 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.
This group shows a single part: WELLS 1S15405.
Micro Plug Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RY465T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| STANDARD MOTOR PRODUCTS | RY465 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the relays that control the Micro Plug 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.
STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Honda Pilot.
Listed part numbers: STANDARD MOTOR PRODUCTS RY465T and STANDARD MOTOR PRODUCTS RY465.
Oil Pressure Sender / Switch
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HOLSTEIN | 2OPS0010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WALKER PRODUCTS | 2561021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Location: Oil Pump | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 2012716 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with LightLocation - Oil Pump | View on Amazon |
| ROSTRA Popular | 501216 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on Cylinder Head | View on Amazon |
| GPD | 1815245 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Located on Oil Pump Housing | View on Amazon |
| WELLS | 1S9564 | 🇺🇸 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.
6 Oil Pressure Sender / Switch parts are listed for the 2021 Honda Pilot, from HOLSTEIN, WALKER PRODUCTS, BECK/ARNLEY and 3 other brands. BECK/ARNLEY 2012716 carries the "Popular" badge.
Economy: 2 parts, from HOLSTEIN and WALKER PRODUCTS. A representative part number is HOLSTEIN 2OPS0010.
The Standard Replacement section: 4 options from BECK/ARNLEY, ROSTRA, GPD and 1 other brand. BECK/ARNLEY 2012716 is listed in this group.
This group includes BECK/ARNLEY 2012716, HOLSTEIN 2OPS0010 and WALKER PRODUCTS 2561021 and the remaining parts above.
Outside Mirror Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO | V26730070 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Black Edition or EX Model or EX-L Model or Elite or LX Model or Special Edition or TouringElectric | View on Amazon |
This table covers the Outside Mirror 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: VEMO V26730070.
Parking Brake Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | PBS135 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WELLS | 1S12567 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Parking Brake 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 Parking Brake Switch parts are listed for the 2021 Honda Pilot, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS PBS135 and WELLS 1S12567.
Power Window Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DWS2184 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| STANDARD MOTOR PRODUCTS | DWS2149 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| STANDARD MOTOR PRODUCTS | DWS2188 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| WELLS | 1S15600 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | 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.
4 Power Window Switch parts are listed for the 2021 Honda Pilot, from STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS DWS2184, STANDARD MOTOR PRODUCTS DWS2149 and STANDARD MOTOR PRODUCTS DWS2188 and the remaining parts above.
Variable Valve Timing (VVT) Oil Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA | HA1316015 | 🇺🇸 US 🇨🇦 CA | EX-L Model or Special EditionLocation: Cylinder Head | View on Amazon |
| AUTOTECNICA | HA1319047 | 🇺🇸 US 🇨🇦 CA | EX-L ModelRequires (1) 91319-PAA-A01 Seal Ring | View on Amazon |
| DORMAN | 926702 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with California Emissions | View on Amazon |
| DORMAN | 918853 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Green Switch | View on Amazon |
This table covers the Variable Valve Timing (VVT) Oil Pressure 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 Variable Valve Timing (VVT) Oil Pressure Switch parts for the 2021 Honda Pilot come from 2 brands — AUTOTECNICA and DORMAN.
Part numbers include AUTOTECNICA HA1316015, AUTOTECNICA HA1319047 and DORMAN 926702, among others listed above.
Buying Electrical Switch & Relay Parts for a 2021 Honda Pilot
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 3.5L 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, 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 Honda Pilot?
Our catalog currently lists 39 electrical switch & relay parts for the 2021 Honda Pilot across 14 subcategories and 12 brands, covering the 3.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical switch & relay problems on a 2021 Honda Pilot?
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 Honda Pilot 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 Honda Pilot?
Every part on this page is matched to the 3.5L V6 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 Honda Pilot
Electrical Switch & Relay Parts for Other Honda Pilot 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.