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Upgraded version - automotive relays built in fuse socket included 30a blade fuses with heavy duty 14AWG wires for main contact.
No need of a separate fuse holder, saving space and money. Package includes: 5 relays, 5 relay harnesses, and 5x30A blade fuses. Bosch style 4-pin spsT Single Pole Single Throw Relay. Easy wiring - the relay sockets come with color-labeled wires for load/accessories convenient wiring.






Hundreds of uses include trunk release, polarity change, etc. Easy to fix: the 4 pin relay with simple structure, save your time. Part number: jd2912-1h-12vdc 40A 14VDC. Moreover, the pure copper coil adopts international standard turns, more reliable than other materials.
High quality: the jd2912-1h-12vdc equip with 4 pin durable terminal, high quality nylon flame-retardant shell. Compatibility: it is widely used in remote control, horn, electronic equipment, and also for automobile control, power door lock/actuator control, addition of ignition/accessory output, communication, headlight, alarm, conversion of low current output to high current, control motor/other electronic equipment, automatic control system, etc.
1. iRhapsody
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Heavy Duty 12 AWG Tinned Copper Wires, Bosch Style SPST Automotive Relay, IRHAPSODY 4 Pin 40/30 AMP 12 V DC Relay and Harness
#adiRhapsody #ad - 40 amp / 30 amp High switching capability. Must operate voltage: 6~8v dc; must release voltage: 06~3. 6v dc; maximum applied Voltage: 15. 6v dc. Length: 5.More information #ad
1in. 12 awg tinned copper wires for Pin 30, Pin 87. 16 awg tinned copper wires for Pin 85, Pin 86. 12-volt relay max 14-volt. Nominal coil voltage: 12v dc; coil power: 1. 8w; coil resistance: 80Ω. Length: 5. 1in.Brand | iRhapsody #ad |
Manufacturer | IRHAPSODY #ad |
Part Number | 4PIN12VRelay06P |
Warranty | 1 YEAR |
More information #ad
2. EHDIS
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Auto Switches & Starters,Pack of 2, EHDIS Car Relay 4 Pin 12v 40amp Spst Model No.: JD2912-1H-12VDC 40A 14VDC
#adEHDIS #ad - Brand new heavy duty 4-prongs SPST relays. Use optional relay Harness, or female Crimp Connectors. Mechanical life of 10, 000+ cycles. High 40a coil capacity- able to handle those high current applications with ease. Package include: 2 x 40a 4-Pin 12V Vehicle Relays.More information #ad
Brand | EHDIS #ad |
Manufacturer | Ehdis #ad |
Height | 0.98 Inches |
Length | 1.06 Inches |
Weight | 0.09 Pounds |
Width | 1.06 Inches |
Part Number | 2C05-12V |
More information #ad
3. iRhapsody
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Heavy Duty 12 AWG Tinned Copper Wires, 5 Pack SPST Bosch Style Automotive Relay, 4-PIN 40/30 AMP 12 V DC Waterproof Relay with Harness
#adiRhapsody #ad - 40 amp / 30 amp High switching capability. 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: 06~3. 6 v dc; maximum applied Voltage: 15.More information #ad
6 v dc. Excellent waterproof and dustproof ability, high quality in any weather conditions. 12 awg tinned copper wires for Pin 30, Pin 87. Length: 5. 1in. Length: 5. 1in. 16 awg tinned copper wires for Pin 85, Pin 86. 12v dc waterproof 4 wire relay max 14v.Brand | iRhapsody #ad |
Manufacturer | IRHAPSODY #ad |
Part Number | 4PIN12VRelay40AWF5P |
Warranty | 1 year |
More information #ad
4. Nilight
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Nilight 50023R 5 Pack 30A Fuse Relay car Truck Socket kit-30A Switch Harness Set-12V DC 4-Pin SPST Automotive 14 AWG Hot Wires-Auto Switches & Starters Set,2 Years Warranty
#adNilight #ad - Wide application - widely used in car keys power control, add ignition/accessory outputs, change a low current output to high current, over-load protection, trunk release, power door lock/actuator control, polarity change, control motors/other electronics etc.Upgraded version - automotive relays built in fuse socket included 30a blade fuses with heavy duty 14AWG wires for main contact.
More information #ad
Black - ground 85, white - trigger 86, red - VDC 30, Blue - Output N/O 87. 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. No need of a separate fuse holder, saving space and money. Package includes: 5 relays, 5 relay harnesses, and 5x30A blade fuses. Bosch style 4-pin spsT Single Pole Single Throw Relay. Easy wiring - the relay sockets come with color-labeled wires for load/accessories convenient wiring.
Brand | Nilight #ad |
Manufacturer | Nilight #ad |
Height | 2 Inches |
Length | 8 Inches |
Weight | 0.72 Pounds |
Width | 6 Inches |
Part Number | 50023R |
Model | 50023R |
Warranty | 2 Years Warranty |
More information #ad
5. Gebildet
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Gebildet JD1912 Car Relay Harness 12V 40A 4 Pin SPST Harness Sockets with Color-Labeled Wires for Automotive Truck Van Motorcycle Boat Pack of 2
#adGebildet #ad - Contact material: ag alloy / Contact Resistance: ≤ 100MΩ. Small size/low power consumption/High contact voltage/ High sensitivity. Life expectancy electrical: 100, 000, 000 Operation, life Expectancy Mechanical: 10, 000 Operation.More information #ad
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.Brand | Gebildet #ad |
Manufacturer | Gebildet #ad |
Part Number | E079 |
Model | E079 |
More information #ad
6. ONLINE LED STORE
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ONLINE LED STORE 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
#adONLINE LED STORE #ad - Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact. 12vdc 14v max and 30a high Switching Capability.More information #ad
Set includes 6 relays, 6 relay harnesses, and 6 blade fuses. Wire specifications: black - ground 85, red - vdc 30, White - Trigger 86, Blue - Output N/O 87. Bosch style 4-pin spst Single Pole Single Throw Relay.Brand | ONLINE LED STORE #ad |
Manufacturer | ONLINE LED STORE #ad |
Height | 2 Inches |
Length | 6.5 Inches |
Weight | 0.8 Pounds |
Width | 5.62 Inches |
Part Number | PSZACCEPS179R |
Model | PSZACCEPS179R |
More information #ad
7. iRhapsody
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Heavy Duty 12 AWG Tinned Copper Wires, 5 Pack SPST Bosch Style Automotive Relay for Marine Boat Fan Light, 4-pin 80/60 AMP 12V DC Waterproof Relay with Harness
#adiRhapsody #ad - Nominal coil voltage: 12v dc; coil power: 1. 8 w; coil resistance: 80 Ω; must operate voltage: 6~8V DC; Must Release Voltage: 06~3. 6v dc; maximum applied Voltage: 15. 6v dc. 80amp / 60amp High switching capability.More information #ad
12-volt 4 wire waterproof relay max 14-volt. Length: 5. 1in. Length: 5. 1in. Excellent weatherproof and dustproof ability, high quality in any weather conditions. 16 awg tinned copper wires for Pin 85, Pin 86. 12 awg tinned copper wires for Pin 30, Pin 87.Brand | iRhapsody #ad |
Manufacturer | IRHAPSODY #ad |
Part Number | 4PIN12VRelay80AWF5P |
Warranty | 1 year |
More information #ad
8. uxcell
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Uxcell 2 Pcs Z1507091/4 4 Pin DC 12V 40A Universal Car Vehicle Motor Fuse Relay Switch Power
#aduxcell #ad - Made of metal and plastic, durable materials for long time service. Suitable for cars and motorcycles. Make sure this is the correct relay replacement your car need before purchase.More information #ad
Dimension: 6x2. 5x2. 2cm / 2. 36"x098"x087"l*w*h; contact Type: SPST. It is recommended to confirm the model, appearance, and function before placing an order. Pin number: 4; voltage: dC 12V; Amp:40A.Brand | uxcell #ad |
Manufacturer | uxcell #ad |
Part Number | a15081000ux0039 |
Model | US-SA-AJD-348053 |
More information #ad
9. BLARYETI
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JD1912 Automotive Relay 4-Pin 40A 12V SPST Car Truck Van Motorcycle Boat Relay,5 Pack
#adBLARYETI #ad - Hight switching Capability: Max 40A. Contact rating: no: dc 12v 40a, nc : DC 12V 30A. High quality,mechanical life of 10, 000+ cycles. Use optional relay Harness, or female Crimp Connectors. 4-pin spst single pole Single Throw Relay.More information #ad
Brand | BLARYETI #ad |
Manufacturer | BLARYETI #ad |
Part Number | relay-B5 |
Model | relay-B5 |
More information #ad
10. Generic
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Automotive Car Relay 4 Pin 12v 40amp JD2912-1H-12VDC 40A 14VDC SPST Relays Auto Switches & Starters for Car Vehicle Truck Boat
#adGeneric #ad - Durable and safety: this spst relay will eliminate a high voltage drop in the wire, high tensile and compressive strength, good toughness, so it allows your components to work properly; and the nylon shell with high mechanical strength, corrosion resistance and flame retardant, which ensure a long time use.Hundreds of uses include trunk release, polarity change, etc. Easy to fix: the 4 pin relay with simple structure, save your time. Part number: jd2912-1h-12vdc 40A 14VDC. Moreover, the pure copper coil adopts international standard turns, more reliable than other materials.
More information #ad
Just remove the broken relay from your car, plug and play, and install the new relay directly and test, perfect replacement for your original one, easy to install, then the installation is complete. High quality: the jd2912-1h-12vdc equip with 4 pin durable terminal, high quality nylon flame-retardant shell. Compatibility: it is widely used in remote control, horn, electronic equipment, and also for automobile control, power door lock/actuator control, addition of ignition/accessory output, communication, headlight, alarm, conversion of low current output to high current, control motor/other electronic equipment, automatic control system, etc.
Brand | Generic #ad |
Manufacturer | WOTI #ad |
Height | 2.09 Inches |
Length | 1.1 Inches |
Width | 1.26 Inches |
Part Number | JD2912-1H-12VDC 40A 14VDC |
More information #ad