2021 Acura RDX Electrical Switch & Relay Parts

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. Read more

This group shows a single part: VEMO V26730082.

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. Read more

3 A/C Refrigerant Pressure Switch parts are listed for the 2021 Acura RDX, from FOUR SEASONS, UAC and WELLS.

Listed part numbers: FOUR SEASONS 37312, UAC SW9970C and WELLS 5S15926.

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. Read more

4 Accessory Power Relay parts for the 2021 Acura RDX come from 2 brands — STANDARD MOTOR PRODUCTS and HOLSTEIN.

This group includes HOLSTEIN 2RSW0025, STANDARD MOTOR PRODUCTS RY1052T and STANDARD MOTOR PRODUCTS RY721 and the remaining parts above.

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. Read more

3 Blower Motor Relay parts are listed for the 2021 Acura RDX, from STANDARD MOTOR PRODUCTS and HOLSTEIN.

Part numbers include HOLSTEIN 2RSW0025, STANDARD MOTOR PRODUCTS RY1052T and STANDARD MOTOR PRODUCTS RY721.

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. Read more

5 Brake Light Switch parts are listed for the 2021 Acura RDX, from DORMAN, HOLSTEIN, STANDARD MOTOR PRODUCTS and 2 other brands. STANDARD MOTOR PRODUCTS SLS589 carries the "Popular" badge.

In the Economy grade, DORMAN and HOLSTEIN supply 2 parts: the catalog's value-priced group. A representative part number is DORMAN 920470.

The Standard Replacement section lists 2 options from STANDARD MOTOR PRODUCTS and BECK/ARNLEY — 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.

Part numbers include STANDARD MOTOR PRODUCTS SLS589, DORMAN 920470 and HOLSTEIN 2BLS0030, among others listed above.

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. Read more

3 Defroster Relay parts are listed for the 2021 Acura RDX, from STANDARD MOTOR PRODUCTS and HOLSTEIN.

Part numbers include HOLSTEIN 2RSW0025, STANDARD MOTOR PRODUCTS RY1052T and STANDARD MOTOR PRODUCTS RY721.

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. Read more

This group shows a single part: WELLS 1S17891.

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. Read more

STANDARD MOTOR PRODUCTS supplies both parts for the 2021 Acura RDX.

Part numbers include STANDARD MOTOR PRODUCTS RY465T and STANDARD MOTOR PRODUCTS RY465.

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. Read more

9 Oil Pressure Sender / Switch parts are listed for the 2021 Acura RDX, from STANDARD MOTOR PRODUCTS, HOLSTEIN, UNITED MOTOR PRODUCTS and 5 other brands. BECK/ARNLEY 2011649 carries the "Popular" badge.

Economy: 4 parts, from HOLSTEIN, STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and 1 other brand. A representative part number is HOLSTEIN 2OPS0029.

The Standard Replacement section: 5 options from BECK/ARNLEY, HELLA, ROSTRA and 2 other brands. BECK/ARNLEY 2011649 is listed in this group.

This group includes BECK/ARNLEY 2011649, HOLSTEIN 2OPS0029 and STANDARD MOTOR PRODUCTS PS469T and the remaining parts above.

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. Read more

5 Power Window Switch parts are listed for the 2021 Acura RDX, from STANDARD MOTOR PRODUCTS and WELLS. STANDARD MOTOR PRODUCTS DWS2255 carries the "Popular" badge.

Part numbers include STANDARD MOTOR PRODUCTS DWS2255, STANDARD MOTOR PRODUCTS DWS2253 and STANDARD MOTOR PRODUCTS DWS2254, among others listed above.

This table covers the relays that control the Starter Motor Cutoff 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. Read more

This group shows a single part: STANDARD MOTOR PRODUCTS RY716.

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. Read more

2 Variable Valve Timing (VVT) Oil Pressure Switch parts for the 2021 Acura RDX come from 2 brands — AUTOTECNICA and BECK/ARNLEY.

The Economy section: 1 option from AUTOTECNICA. AUTOTECNICA HA1319047 is listed in this group.

Standard Replacement: 1 part, from BECK/ARNLEY. A representative part number is BECK/ARNLEY 2012716.

Part numbers include AUTOTECNICA HA1319047 and BECK/ARNLEY 2012716.