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Best automotive switches relays - July 2026

Last Updated - July 23, 2026

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

RVMARINEPAT

RVMARINEPAT Relay Bypass Switch 9038 Relay Tester Kit Diagnostic Tester Scan Tool & Fuel Pump Relay Bypass Master Kit Replaces 9036 9037 Compatible with Domestic GM BMW Audi Chrysler 6-Pack

RVMARINEPAT

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Main highlights
- Wide Compatibility & Effortless Control: This Relay tester kit is designed for seamless compatibility with a wide range of vehicles, including Audi, BMW, Volkswagen, GM, Chrysler, and more. Our relay bypass kit also replaces multiple relay models (9038, 9036, 9037) and provides direct control over fuel pumps, window motors, headlights, and other components
- Save Time & Diagnose Faster: This diagnostic tester is very convenient. Quickly identify electrical issues and save valuable time during repairs. Simply plug the relay tester into the fuel pump relay position to gain direct control over the circuit and pinpoint problems
- Reliable Performance & Built to Last: Crafted from high-quality materials, this relay tester is rigorously tested to meet or exceed OEM standards. Our relay bypass switch kit enjoy consistent operation with its 20 amp continuous and 30 amp surge current (12V) capacity, ensuring long-lasting performance
- Component Included: Our product include relay bypass switch kit 9036-1(36-LRG 20AMP), 9036-2(36-MED 20AMP), 9036-3(36-SML 10AMP), 9037-1(37-LRG 20AMP), 9037-2(37-MED 20AMP), 9037-3(37-SML 10AMP)
- Complete Kit for Versatile Applications: This 6-pack 9038 includes multiple Relay Testers, giving you ample options for a variety of repair needs and making it a valuable addition to any mechanic's tool box
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✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Prismora

9038 Relay Bypass Switch Kit, 6-Pack, Black

Prismora

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Main highlights
- Products Include: 6* relay switches. Please check the OEM part number before purchasing and make sure your part number matches this part number to avoid purchasing the wrong product
- Plug and Play: It can be installed vertically or horizontally, just plug in the fuel pump relay position to directly control the fuel pump circuit, very convenient, saving a lot of time and money
- Operating Range: Up to 20 amps continuous current, 30 amps surge current (12V), suitable for most car models on the market, please see the picture for specific models.
- Newly Upgraded: The casing is made of high-quality flame-retardant material, ensuring stable performance even in extreme environments, and is dustproof and waterproof; the silver contacts have high conductivity, ensuring continuous and stable power supply operation.
- Compatibility: 9038 replaces 9036 9037, suitable for most domestic, Japanese, Korean and German fuel pumps, window motors, headlight switches and other devices using automotive relays
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✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Gebildet

Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle

Gebildet

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Main highlights
- Small size/Low power consumption/High contact voltage/ High sensitivity.
- Minimum operating voltage 8V, corresponding minimum operating current is 100mA; Standard operating voltage 12V, corresponding standard operating current is 150mA.
- Life Expectancy Electrical: 100,000 Operation, Life Expectancy Mechanical: 10,000,000 Operation.
- Integrated Diode: Each relay includes a built-in diode that suppresses induced voltage during switching, safeguarding your electrical components from potential damage.
- Contact Material: Ag Alloy / Contact Resistance: ≤ 100MΩ.
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

iRhapsody

irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay

iRhapsody

More Details
Main highlights
- Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g
- Nominal Coil Voltage: 12 V DC; Coil Power: 1.8 W; Coil Resistance: 80 Ω; Must Operate Voltage: 6~8 V DC; Must Release Voltage: 0.6~3.6 V DC; Maximum Applied Voltage: 15.6 V DC
- Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for
- Be careful when inserting the relay into the socket. If you force it, you will bend the female connectors
- 12-volt 5-prong relay. Excellent water-repellent and dustproof ability, but not using it in water
5
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Standard Motor Products

Standard Motor Products RY-1562 Relay

Standard Motor Products

More Details
Main highlights
- Product Type :Relay
- Package Weight :1.19Lbs
- Package Dimensions :5.105 Cm L X11.303 Cm W X19.888 Cm H
- Country Of Origin :China

Best automotive switches relays - July 2026

RVMARINEPAT Relay Bypass Switch 9038 Relay Tester Kit Diagnostic Tester Scan Tool & Fuel Pump Relay Bypass Master Kit Replaces 9036 9037 Compatible with Domestic GM BMW Audi Chrysler 6-Pack

9038 Relay Bypass Switch Kit, 6-Pack, Black

Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle

irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay

Standard Motor Products RY-1562 Relay

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