How to test and replace relays in electrical system on Subaru Legacy?

The fuel injection system, horns, starter, and fog lams along with many other features passing electricity in the vehicle come with relays. Relays work in such a way that a low current control circuit is used to open and close a high current power circuit. Malfunctioning relays will render a linked component useless and while most relays are in the engine box fuse and relay compartment, some are near the passenger box fuse that can only be seen after moving the knee bolster. If it is assumed that the relay is faulty then it can be pulled out forPossible tests or taken to a dealer service department because relay cannot be rebuilt and it has to be substituted. Relay that is commonly used in these vehicles is normally an NO relay. By tracing the schematic of the obtained apparatus and comparing it to the intended circuit, the correct connections for testing can be made. There are two terminals reading the relay control circuit and the other two joining the relay coil; the other two form the power circuit. When energized the coil creates a magnetic field heavy enough to close the extra large contacts of the power circuit supplying powers to the loads of the circuit. To inspect the relay that is normally open, it is necessary to make a measurement with the ohmmeter without connection and with connection of the terminals No. 3 and No. 4 to the power and the ground, respectively, with the check on the terminals No. 1 and No. 2. However, if the relay will not jump this test, then it will have to be replaced.

Genuine Subaru Legacy Relay

Wire Relay

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

77 Relays found

View related parts
Subaru Legacy Relay Assembly
Part Number: 82501AE03A
$9.82 MSRP: $13.63
You Save: $3.81 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay; Horn Relay, Window Relay
- Replaces: 82501FC100
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2020-2023 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.4L H4 DIT, 2.5L H4 DI, 4 Cyl 2.4L, 4 Cyl 2.5L
- 2000-2014 Subaru Legacy | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Base, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Baja, Baja-B, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, GT Limited, L, L-S, Limited, SUS Flat6, SUS Limited, XT Limited | 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Horn Relay
Part Number: 82501AG05B
$5.75 MSRP: $7.98
You Save: $2.23 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Fan Relay; Starter Relay, Window Relay, Relay Assembly
- Manufacturer Note: MITSUBA RC07-003
- Replaces: 82501AG05A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Base, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Base, GT, GT Limited, XT Limited | 2.4L H4 DIT, 2.5L H4, 2.5L H4 DI, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Accessory Power Relay
Part Number: 82501AL000
$2.96 MSRP: $4.12
You Save: $1.16 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Horn Relay; Relay Assembly
- Manufacturer Note: ACVN51212
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.4L H4 DIT, 2.5L H4, 2.5L H4 DI, 3.6L H6
View related parts
Subaru Legacy Relay
Part Number: 82501FC100
$9.82 MSRP: $13.63
You Save: $3.81 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: DENSO 156700-1020
- Replaced by: 82501AE03A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2020-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring | 2.4L H4 DIT, 2.5L H4 DI
- 2005-2014 Subaru Legacy | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Base, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Base, GT, GT Limited, XT Limited | 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Air Pump Relay
Part Number: 25232AA090
$12.90 MSRP: $17.92
You Save: $5.02 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Fan Relay; Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.4L H4 DIT, 3.6L H6
- 2007-2009 Subaru Legacy | GT, GT Limited, XT Limited | 2.5L H4 Turbo
View related parts
Subaru Legacy Relay Assembly
Part Number: 82501AG08A
$14.12 MSRP: $20.47
You Save: $6.35 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay; Fan Relay, Horn Relay
- Manufacturer Note: DENSO
- Replaces: 82501AG080
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Base, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Base, GT, GT Limited | 2.4L H4 DIT, 2.5L H4, 2.5L H4 DI, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Relay Assembly
Part Number: 82501TC000
$31.86 MSRP: $46.17
You Save: $14.31 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay; Daytime Running Light Relay
- Manufacturer Note: DENSO 156700-1700
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2013-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.4L H4 DIT, 2.5L H4, 2.5L H4 DI, 2.5L H4 DOHC, 3.6L H6
- 2000-2007 Subaru Legacy | 2.5i, 2.5i Limited, 3.0R, 3.0R Limited, 3.0R LL-Bean, Baja, Baja-B, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, GT Limited, L, L-S, Limited, SUS Flat6, SUS Limited | 2.5L H4, 2.5L H4 Turbo, 3.0L H6
View related parts
Subaru Legacy Breaker Power Window
Part Number: 85543AG000
$23.62 MSRP: $34.23
You Save: $10.61 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Breaker-Power Window
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2014 Subaru Legacy | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Base, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Base, GT, GT Limited, XT Limited | 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Unit&Relay
Part Number: 86111AJ001
$48.40 MSRP: $70.15
You Save: $21.75 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Turn & Hazard Unit; Flasher, Hazard Switch
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2010-2014 Subaru Legacy | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.6L H6
View related parts
Subaru Legacy Relay
Part Number: 82501AA130
$24.31 MSRP: $35.23
You Save: $10.92 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Window Relay
- Replaces: 82501AA000
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1995-2004 Subaru Legacy | Baja, Baja-B, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, L, L-S, Limited, LS, LS-I, Out Back, Post, SUS, SUS Flat6, SUS Limited | 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 Turbo, 3.0L H6
- 1990-1993 Subaru Legacy | L, LS, LS-D, Turbo
View related parts
Subaru Legacy Relay Assembly
Part Number: 82501AG070
$20.15 MSRP: $29.20
You Save: $9.05 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay
- Manufacturer Note: ACV31212 M05
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2014 Subaru Legacy | 2.5GT Limited, 2.5GT Premium, 2.5i, 2.5i Base, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.0R, 3.0R Limited, 3.0R LL-Bean, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring, Base, GT, GT Limited, XT Limited | 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo, 3.0L H6, 3.6L H6
View related parts
Subaru Legacy Relay Assembly
Part Number: 25232AA020
$36.77 MSRP: $53.28
You Save: $16.51 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay; Relay Assembly Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2009 Subaru Legacy | 2.5i, 2.5i Base, 2.5i Limited, 3.0R, 3.0R Limited, 3.0R LL-Bean, Base, GT, GT Limited, XT Limited | 2.5L H4, 2.5L H4 Turbo, 3.0L H6
- 1992-1999 Subaru Legacy | Base, Brighton, GT, L, LS, LS-I, Out Back, Post, SUS, Turbo | 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Relay
Part Number: 82501GA240
$36.09 MSRP: $52.30
You Save: $16.21 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay Assembly; AC Relay
- Manufacturer Note: DENSO 056700-5260
- Replaces: 782501081
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1990-2004 Subaru Legacy | Baja, Baja-B, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, L, Limited, LS, L-S, LS-D, LS-I, Out Back, Post, SUS, SUS Flat6, SUS Limited, Turbo | 2.2L H4 , 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 Turbo, 3.0L H6
View related parts
Subaru Legacy Relay
Part Number: 25232AA130
$28.97 MSRP: $41.98
You Save: $13.01 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Replaces: 25232AA110
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2021 Subaru Legacy | 2.4R F/R-O, 2.4R Limited, 2.4R Touring, 2.5i, 2.5i Limited, 2.5i Premium, 2.5i Sport, 2.5i Touring, 3.6R, 3.6R Limited, 3.6R Premium, 3.6R Touring | 2.4L H4 DIT, 2.5L H4, 2.5L H4 DI, 3.6L H6
View related parts
Subaru Legacy Relay Assembly
Part Number: 82501AG080
$14.12 MSRP: $20.47
You Save: $6.35 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay
- Manufacturer Note: DENSO 156700-2960
- Replaced by: 82501AG08A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2005-2008 Subaru Legacy | 2.5i, 2.5i Limited, 3.0R, 3.0R Limited, 3.0R LL-Bean, Base, GT, GT Limited | 2.5L H4, 2.5L H4 Turbo, 3.0L H6
View related parts
Subaru Legacy Turn SIGNAL/HAZARD Unit
Part Number: 86111AC010
$46.97 MSRP: $68.07
You Save: $21.10 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Turn & Hazard Unit; Hazard Flasher, Turn Signal Flasher
- Replaces: 86111AC020
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1995-1999 Subaru Legacy | Base, Brighton, GT, L, LS, LS-I, Out Back, Post, SUS | 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Relay Assembly
Part Number: 25230AA220
$7.15 MSRP: $9.93
You Save: $2.78 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: ACVN51212 M28
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2023-2025 Subaru Legacy | 4 Cyl 2.4L, 4 Cyl 2.5L
View related parts
Subaru Legacy RELAY/BRACKET Assembly
Part Number: 25229AA030
$44.48 MSRP: $64.47
You Save: $19.99 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay & Bracket Assembly; Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2000-2004 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, Flat6, Flat6 L.L.Bean, Flat6-S, GT, L, Limited, L-S, SUS Flat6, SUS Limited | 2.5L H4, 3.0L H6
View related parts
Subaru Legacy RELAY ASSY
Part Number: 82501FN19A
$17.22 MSRP: $24.95
You Save: $7.73 (31%)
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2024-2025 Subaru Legacy | 4 Cyl 2.4L, 4 Cyl 2.5L
View related parts
Subaru Legacy Relay
Part Number: 25232KA050
$30.03 MSRP: $43.52
You Save: $13.49 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2025 Subaru Legacy | 4 Cyl 2.4L, 4 Cyl 2.5L

| Page 1 of 4 |Next >

1-20 of 77 Results

Subaru Legacy Relay

The Relay is a rapidly-acting electronic gate that switches various high-draw hardware in and out using low-power electronic signals. In the case of the Subaru Legacy, climate control hardware is the application that the Relay controls. When the control circuit goes into action, an electromagnet draws metal contacts together from the inside. Hence, the complete battery power is directed to the fan motor, blower motor, or A/C compressor. The contact breaks, thereby isolating the load immediately and preventing overloading of the whole system. Earlier versions of the Relay worked only through electromechanical action. Later Subaru Legacy models may likewise have solid-state designs that use semiconductors to do the same job without moving parts, making them more durable under constant cycling. Certain variants of the Legacy utilize latching types, allowing them to maintain their position after a solitary pulse. This saves energy in stop-start traffic. To achieve this purpose, all Relay styles in Subaru vehicles accomplish the same thing. They ensure accurate readings of cabin temperature. Thus, when a sensor produces an inaccurate reading, it is activated quickly. Furthermore, by designing fault isolation, one failed Relay will disable only one circuit and not the entire chain. Regular inspection and timely swapping of a tired Relay prevent error codes and spare owners the cost of replacing healthy hardware.

Our website stands as the go-to online destination for OEM Subaru Legacy Relay. With complete lines of genuine Subaru Legacy Relay available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Legacy Relay Parts Questions & Experts Answers

Power Window Relay
85543FC010
Q:
How to test and replace relays in electrical system on Subaru Legacy?
Posted by Joe B.
A:
The fuel injection system, Horns, starter, and fog lams along with many other features passing electricity in the vehicle come with relays. Relays work in such a way that a low current control circuit is used to open and close a high current power circuit. Malfunctioning relays will render a linked component useless and while most relays are in the engine box fuse and relay compartment, some are near the passenger box fuse that can only be seen after moving the knee bolster. If it is assumed that the relay is faulty then it can be pulled out forPossible tests or taken to a dealer service department because relay cannot be rebuilt and it has to be substituted. Relay that is commonly used in these vehicles is normally an NO relay. By tracing the schematic of the obtained apparatus and comparing it to the intended circuit, the correct connections for testing can be made. There are two terminals reading the relay control circuit and the other two joining the relay coil; the other two form the power circuit. When energized the coil creates a magnetic field heavy enough to close the extra large contacts of the power circuit supplying powers to the loads of the circuit. To inspect the relay that is normally open, it is necessary to make a measurement with the ohmmeter without connection and with connection of the terminals No. 3 and No. 4 to the power and the ground, respectively, with the check on the terminals No. 1 and No. 2. However, if the relay will not jump this test, then it will have to be replaced.
Answered by Subaru Parts Specialist Gary / Apr 06, 2026