Advertising Disclosure

Best switches relays - September 2025

Last Updated - September 26, 2025

1
Best Choice

✖
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.

ONLINE LED STORE

True MODS 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars

ONLINE LED STORE

$18.99

More Details
Main highlights
- Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87).
- Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.
- Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact.
- Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
- 12VDC (14V Max) and 30A High Switching Capability.
$18.99
2

✖
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

9038A Relay Bypass Switch, Relay Tester, Bypass Switch Kit with Amp Loop, 6-Pack, Black

Prismora

$16.99

More Details
Main highlights
- With Amplification Loop: The 9038A Relay Bypass Switch can be used with a clip-on amplifier probe/lab oscilloscope to monitor current
- Wide Applications: Relay Bypass Switch Kit fits most fuel pumps, cooling fans, window motors, headlight switches, air conditioning compressors and other devices using automotive relays
- Powerful: This relay bypass switch controls the fuel pump independently of the "key on/off" system, Simplifying fuel injection testing
- Plug and Play: Simple installation, can be installed vertically or horizontally, just plug in the fuel pump relay position to directly control the fuel pump circuit.
- Operating Range: Maximum 20 amps continuous, 30 amps surge (12V), runs all automotive 12V DC motors with the flip of a switch
$16.99
3

✖
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, Relay Bypass Switch Kit, Replacement 9036 9037, Fit for Domestic GM BMW, Audi, Chrysler, 6-Pack, Black

Prismora

$13.29

More Details
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: 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.
- New Upgrade: The shell is made of high-quality materials, dustproof and waterproof; the silver contacts have high conductivity to ensure continuous and stable operation of the power supply
- 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
$13.29
4
Best Value
28% Off

✖
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.

Nilight
28% Off

Nilight 50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV

Nilight

$10.79

$14.99
(28% Off)

More Details
Main highlights
- Wide Application - Widely used in car keys power control, over-load protection, trunk release, polarity change, power door lock/actuator control, change a low current output to high current, add ignition/accessory outputs, control motors/other electronics etc.
- Upgraded Version - Automotive relays built in fuse socket included 30A blade fuse with heavy duty 14AWG wires for main contact. no need of a separate fuse holder, saving space and money. 4-Pin SPST (Single Pole Single Throw) Relay.
- Set includes 5 relays, 5 relay harnesses, and 5 30A blade fuses.
- Mounting Design Feature - The interlocking mounting design of unique male and female slot on each socket edge, connect relays together and manage cables easily, offering clean and neat installation.
- Easy Wiring - The relay sockets come with color-labeled wires for load/accessories convenient wiring. Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87)
$10.79
$14.99 (28% Off)
5

✖
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.

NR NIRIDER

Wiring Harness 2 Lead, Nirider 12V 40A Rocker Switch Relay Fuse Nylon Wiring Harness Kit for LED Light Bars Fog Lights Work Lights Driving Lights Offroad LED Pods Wire Kit for Truck UTV ATV Boat

NR NIRIDER

$14.45

$15.21
(4% Off)

More Details
Main highlights
- SAFETY & DURABILITY - Heat-resistant, no need to worry about over-current or over-temperature conditions. Waterproof design for durability, relay uses 4 poles, fuse with rubber cap and is sealed for added moisture protection. The switch has been tested repeatedly to ensure durability.
- OVERVIEW - Nirider Nylon Wiring Harness Kit is designed to wire and operate up to two 200W auxiliary lights (Max 400W total). Harness complete with red indicator light rocker switch, relay, fuse and mounting hardware.
- NYLON MATERIALS - The high-tensile nylon jacket offers superior strength and flexibility, it can handle daily wear and tear, ensuring long-lasting performance. Nylon jackets enhance durability and heat dissipation while adding a factory look.
- BOX COME WITH - 14.7ft 2 lead wiring harness, on/off rocker switch, plug-in style 40A relay, ATO style 30A fuse, heat shrink tubes, male and female fully insulated connectors. Provide 12 MONTHS quality assurance. Quickly responded within 24 hours.
- APPLICATIONS - Easy to install. Compatible with all vehicles, powersports, boats, and devices equipped with a 12V power source. Fit for most of LED lights in the market. Illuminated red LED indicator for visibility and ease of use. 14.7ft total cable length, there's enough wire to reach all the way to the end of your vehicles.
$14.45
$15.21 (4% Off)

Best switches relays - September 2025

True MODS 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars

9038A Relay Bypass Switch, Relay Tester, Bypass Switch Kit with Amp Loop, 6-Pack, Black

9038 Relay Bypass Switch, Relay Bypass Switch Kit, Replacement 9036 9037, Fit for Domestic GM BMW, Audi, Chrysler, 6-Pack, Black

Nilight 50023R 5 Pack 30A Fused Relay Switch Kit 12V 4 Pin SPST Relay Interlocking Harness Socket Holder 30 Amp 12 Volt Automotive Relays with Fuse for Auto Cars Trucks RV

Wiring Harness 2 Lead, Nirider 12V 40A Rocker Switch Relay Fuse Nylon Wiring Harness Kit for LED Light Bars Fog Lights Work Lights Driving Lights Offroad LED Pods Wire Kit for Truck UTV ATV Boat

You may also like...

Nilight 10 Pack SPDT 5PIN Electrical Relays 12V 30/40 Amp 5-Pin Switch Relay for Automotive Car Truck Marine Boat

Gebildet 3pcs 12V Fuse Relay Switch 12 AWG Harness Set with Built-in Diode- 30A ATO/ATC Blade Fuse, 4-Pin SPST Automotive Electrical Relays

AEDIKO 10pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger

Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring Harness-5 Pack, 2 Years Warranty

YUXIVCNE 9038 Fuel Pump Relay Bypass Master Kit - Pack of 6 Relay Tester Diagnostic Scan Tool Bypass Switch Kit - Replaces 9036 9037

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

HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger

Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade Fuse for Off Road Lights Work Light, 2 Years Warranty,Black

Ronybuy 4-PIN 12V DC IP65 Waterproof Relay with Harness 40/30 AMP Relay Switch - Heavy Duty 12&16 AWG Tinned Copper Wires, SPST Automotive Relay Kit for Horns Starters Radiator Motor Fans, Pack of 1

Nilight 200A Starter Relay 4 Pin Split Switch 12V Continuous Heavy Duty SPST High Current Terminal Car On Off Control for Automotive Truck RV Camper

Sign up and get exclusive special deals