REVIEWS

Daqian World Commodity Store Jd1912 12v 40a Relay of 2026

By Daqian World Commodity Store Editor • 2026-09-20
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Daqian World Commodity Store Jd1912 12v 40a Relay

of September 2026
1
Best Choice
EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto
EHDIS
9.9
Exceptional
4.5 stars
View on Amazon
2
Best Value
ONLINE LED STORE 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness
ONLINE LED STORE
9.8
Exceptional
4.5 stars
View on Amazon
3
IRHAPSODY 4 Pin 40/30 AMP 12 V DC Relay and Harness - Heavy Duty 12 AWG Tinned
iRhapsody
9.7
Exceptional
4.5 stars
View on Amazon
4
Nilight SPDT Relay Replacement 12V 5 Prong SPDT Auto Tilt Trim Relay (Pack of
Nilight
9.6
Exceptional
4.5 stars
View on Amazon
5
Gebildet JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with
Gebildet
9.5
Excellent
4 stars
View on Amazon
6
Nilight 50044R 5 Pack Waterproof 40/30 AMP Heavy Duty 12 AWG Tinned Copper
Nilight
9.4
Excellent
4 stars
View on Amazon
7
Weasch 2 Pack JD1912 Car Relay, 12V 40A, 4 Pins SPST, Automotive Switches and
Weasch
9.3
Excellent
4 stars
View on Amazon
8
JD1912 Automotive Relay 4-Pin 40A 12V SPST Car Truck Van Motorcycle Boat
BLARYETI
9.2
Excellent
4 stars
View on Amazon
9
5 Pack 40/30 AMP 12 V DC Waterproof Relay and Harness - Heavy Duty 12 AWG
iRhapsody
9.1
Excellent
4 stars
View on Amazon
10
BLARYETI JD1912 Automotive Relay 4-Pin 40A 12V SPST Car Truck Van Motorcycle
BLARYETI
9
Excellent
4 stars
View on Amazon
11
Car Relay JD1912 12V 40A 4 Pin SPST for Motorcycle Boat Automotive Truck Van (1
HiSport
8.9
Very Good
3.5 stars
View on Amazon
12
XtremeAmazing Pack of 2 Car Relay Socket Harness JD1912 12V 40A 4 Pin SPST
XtremeAmazing
8.8
Very Good
3.5 stars
View on Amazon
13
YiePhiot 2 Pack Car Relay 4 Pin 12V 40 Amp Model No : JD2912-1H-12VDC 40A
YiePhiot
8.7
Very Good
3.5 stars
View on Amazon
14
YOKELLMUX Relay 12V 40 Amp 4 Pin Aautomotive Relay JD2912 Car Relay 2 Pack, for
YOKELLMUX
8.6
Very Good
3.5 stars
View on Amazon
Click here to learn more about these products.

EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters,Pack of 2

Brand new heavy duty 4-prongs SPST relays. Use optional Relay Harness, or female Crimp Connectors. High 40A coil capacity- able to handle those high current applications with ease. Package Include 2 x 40A 4-Pin 12V Vehicle Relays. Mechanical life of 10,000 cycles.

ONLINE LED STORE 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Marine Relays for Boats Auto Fan Cars

User Manual available for download under Product Information Details. Waterproof construction heavy duty 12AWG wires for the main contact.. Bosch style 5-Pin SPDT Single Pole Double Throw Relay.. 12VDC 14V Max and 40A30A High Switching Capability.. Wire Specifications Black - Ground 85, Red - VDC 30, White - Trigger 86, Yellow - Output NC 87a, and Blue - Output NO 87..

IRHAPSODY 4 Pin 40/30 AMP 12 V DC Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, Bosch Style SPST Automotive Relay

12 awg tinned copper wires for Pin 30, Pin 87. Length 5.1in. 16 awg tinned copper wires for Pin 85, Pin 86. Length 5.1in. 12-volt relay max 14-volt. 40 amp 30 amp High switching capability. Nominal Coil Voltage 12V DC Coil Power 1.8W Coil Resistance 80. Must Operate Voltage 68V DC Must Release Voltage 0.63.6V DC Maximum Applied Voltage 15.6V DC.

Nilight SPDT Relay Replacement 12V 5 Prong SPDT Auto Tilt Trim Relay (Pack of 10) 40/30 AMP Electrical Power Relay Switch 5 Pin Bosch Style Relay for Automotive Cars Marine Boats,2 Years Warranty

5 Pin SPDT Single Pole Double Throw Bosch Style Electrical Relay.. 40A30A High Switching Capability. These relays have a universal application and can be used in a 12 Volt DC power source, such as automotive setups, car sound systems, security systems, and various other applications.. Pin Specifications 30V DC. Ground 85, Trigger 86, Output NC 87a, and Output NO 87.. Maximum Applied Voltage 15.6 V DC Max Operating Voltage is 27V DC Nominal Coil Voltage 12 V DC Max Operating Current 40A Must Operate Voltage 68 V DC Must Release Voltage 0.63.6 V DC Coil Power 1.8 W Coil Resistance 80 Insulation Resistance 100M. Package include 10 pack electrical relays. Sockets are not included. 2 Year Warranty by Nilight..

Gebildet JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Color-labeled Wires for Automotive Truck Van Motorcycle Boat (Pack of 2)

Brand new heavy duty SPSTSingle Pole Single Throw relays with color-labeled wires.. Minimum operating voltage 8V, corresponding minimum operating current is 100mA Standard operating voltage 12V, corresponding standard operating current is 150mA.. Small sizeLow power consumptionHigh contact voltage High sensitivity.. Contact Material Ag Alloy Contact Resistance 100M.. Life Expectancy Electrical 100,000 Operation, Life Expectancy Mechanical 10,000,000 Operation..

Nilight 50044R 5 Pack Waterproof 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Bosch Style 12V Automotive Relay and Harness Set,2 Year Warranty

12 V DC automotive waterproof relays max 14 V. Note 12 V and 14 V are coil voltages, they are not the voltage that triggers the switch. Premium quality durable relay and harness socket with 5 wires made from high-grade materials to ensure superior quality and long lifespan. Pre-wired Harness Heavy duty 1216 AWG wiring harness. Black - 16AWG Pin85, White - 16AWG Pin86, Red - 12AWG Pin30 Yellow - 12AWG Pin87a, and Blue - 12AWG Pin87. Enhanced Waterproof - The 5-Pin relays are tightly sealed with strong cap and seal ring, excellent performance of waterproof, dust proof and moisture proof, works well in any weather conditions. Package includes 5 pack Waterproof Relay and Harness. 1x User manual. 2 Year Warranty by Nilight..

Weasch 2 Pack JD1912 Car Relay, 12V 40A, 4 Pins SPST, Automotive Switches and Starters, Waterproof Relay for Boat Tractor Truck Motorcycle (2)

Product Name Car Relay Model JD1912. Rated Voltage 12VDC Max.Operating Current 40A. Contact SPST Number of Pins 4. Contact Material Ag Alloy Insulation Resistance 100M. Package Content 2 x JD1912 Car Relay.

JD1912 Automotive Relay 4-Pin 40A 12V SPST Car Truck Van Motorcycle Boat Relay,5 Pack

4-Pin SPST Single Pole Single Throw Relay. Contact Rating NO DC 12V 40A , NC DC 12V 30A. Hight Switching Capability Max 50A. Use optional Relay Harness, or female Crimp Connectors. High qualitymechanical life of 10,000 cycles.

5 Pack 40/30 AMP 12 V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Bosch Style Automotive Relay

12 AWG tinned copper wires for Pin 30, Pin 87, Pin 87a. Length 5.1in. 16 AWG tinned copper wires for Pin 85, Pin 86. Length 5.1in. 12v dc waterproof 5 wire relay max 14v. 40 amp 30 amp High switching capability. Excellent waterproof and dustproof ability, high quality in any weather conditions. Nominal Coil Voltage 12 V DC Coil Power 1.8 W Coil Resistance 80 Must Operate Voltage 68 V DC Must Release Voltage 0.63.6 V DC Maximum Applied Voltage 15.6 V DC.

BLARYETI JD1912 Automotive Relay 4-Pin 40A 12V SPST Car Truck Van Motorcycle Boat Relay,1 Pack

4-Pin SPST Single Pole Single Throw Relay. Contact Rating NO DC 12V 40A , NC DC 12V 30A. Hight Switching Capability Max 50A. Use optional Relay Harness, or female Crimp Connectors. High qualitymechanical life of 10,000 cycles.

Car Relay JD1912 12V 40A 4 Pin SPST for Motorcycle Boat Automotive Truck Van (1 Pack) - HiSport

Contact Rating NO DC 12V 40A , NC DC 12V 30A. High-quality Electrical Relay Relay Copper coils and silver contacts create excellent electrical conductivity. Function This relay will eliminate a high voltage drop in the wire, so it allows your components to work properly.50A high coil capacity can easily handle those high current applications. Application Widely used to install electric cooling fans, Horns, Shaved door handles solenoids, Electric fuel pumps, Electric water Pumps, Trunk solenoids, automotive setups, security systems, car sound systems, and various other applications..

XtremeAmazing Pack of 2 Car Relay Socket Harness JD1912 12V 40A 4 Pin SPST Wires for Automotive Truck Van Motorcycle Boat Switches Starters Set

40Amp Connector Socket with 4 Terminals design. Relay load 40A12VDC. Contact Resistance 100M. Package Contents 2 x 40A 4-Pin 12V Vehicle Relay, 2 x Pre-wired socket.

YiePhiot 2 Pack Car Relay 4 Pin 12V 40 Amp Model No : JD2912-1H-12VDC 40A 14VDC, Car Relay Switch Auto Switches & Starters

Brand new Car Relay 4 Pin 12v 40amp Model No JD2912-1H-12VDC 40A 14VDC. Use optional Relay Harness, or female Crimp Connectors. Hundreds of uses include- starter kills, domelight supervision, trunk release, polarity change,power door lockactuator control, change a low current output to high current,add ignitionaccessory outputs, control motorsother electronics, It is Also suitable for automobile used for control, alarms, horn, headlight and more..... Package Include 2 x 40A 4-Pin 12V Vehicle Relays,. Mechanical life of 10,000 cycles.

YOKELLMUX Relay 12V 40 Amp 4 Pin Aautomotive Relay JD2912 Car Relay 2 Pack, for Car Truck Van Motorcycle Boat Relay

Package Include 2 x 40A 4-Pin 24V Vehicle Relays. High 40A coil capacity- able to handle those high current applications with ease. Use optional Relay Harness, or female Crimp Connectors. Brand new heavy duty 4-prongs SPST relays. Mechanical life of 10,000 cycles.

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