Best Relays Deals Online in the UK (24 Deals Found)

Last Updated - 23/09/2026 Sort By:

Best Choice
Gebildet

New
Gebildet 2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck
Integrated Diode: Each relay includes a built-in diode that suppresses induced voltage during switching, safeguarding yo

£7.99
Gebildet

New
Gebildet 3pcs 12V Fuse Relay Switch 12 AWG Harness Set with Built-in Diode- 30A ATO/ATC Blade Fuse, 4-Pin SPST Automotiv
Upgraded Version - Automotive relays built in fuse socket with included 30A blade fuse, no need of a separate fuse holde

£11.99
New
GLOW PLUG RELAY PREHEATING CONTROL UNIT 12217822099 12217823325 7822099 7823325
12217822099 / 12217823325 / 12 21 7 823 325 / 12 21 7 822 099.

£71.27
Ehdis

New
Ehdis 2 pcs Car Relay 12v 40 APM 4 Pin Relay Kit Spst Model No.: JD2912-1H-12VDC 40A 14VDC, Auto Switches & Starters
Brand new heavy duty 4-prongs SPST relays

£7.99
New
5 x 12V Automotive On/Off Fused Relay 30A 4-Pin with Holder Socket

£12.38
Best Value
Bosch

New
Bosch 0986AH0453 Mini Relay 12V 20A, IP5K4, Operating Temperature from -40 Degree to 85 Degree C, 4 Pin Relay
Normally open relay, 12V, relay switch, four pole relay

£3.48 £3.58
SHUNYABEI

New
2Pcs JD1912 Automotive Relay Switch & Starter 12V 40A SPST 4-Pin for Heavy Duty Cars, Trucks, Motorcycles, Boats (Black)
Package Includes :You will get 2Pcs JD1912 4 pin 12V/40A SPST Automotive Relay

£6.36
New
4 PIN NORMALLY OPEN 12V 70A SPST AUTOMOTIVE RELAY WITH RESISTOR YWB500220
Upgrade or replace with this 4 Pin Normally Open 12V 70A SPST Automotive Relay with Resistor (YWB500220).

£8.99
Ollanoos

New
Ollanoos 10 Pack JD1914 12V 40A 5 Pin SPDT Electrical Relays, Starter Switch Relays for Automotive Truck Motorcycle Boat
High Switching Capability: High current switching capability of 30A and 40A for a wide range of high load applications,

£15.19
New
Blue Mitsuba-7003 Relay For Honda Fuel Pump - 39794-SDA-004 x1 New UK
Blue Mitsuba-7003 Relay For Honda Fuel Pump.

£14.99
Weasch

New
Weasch 2 Pack JD1912 Car Relay, 12V 40A, 4 Pins SPST, Automotive Switches and Starters, Waterproof Relay for Boat Tracto
Product Name: Car Relay; Model: JD1912

£7.79
Cateye

New
2 Pack Car Relays 5 Pin 30A 12V, Universal Automotive Relay Kit, Multi Purpose Truck Heavy Duty Standard Kit, Starter Sw
High Quality Construction: Built with premium copper coils and silver contact points, these 12v relay units provide exce

£6.09
New
12v 50A Glow Plug Relay Fits For Fiat Ducato 1982-2002
Ensure dependable starting of your Fiat Ducato (1982-2002) diesel engine with this 12V 50A glow plug relay.

£51.99
TIANXUAN

New
12V Fuse Automotive Relay Switch Harness Set Gebildet 30A Ato Atc Blade Fuse 4 Pin Spst Automotive Electrical Relays wit
Upgraded Design with Built-in Fuse: Includes 30A ATO/ATC blade fuse integrated into the 12v relay socket, eliminating th

£8.49
New
Golf MK2 Fuel Pump Relay 1.8 1984-1989 Models
Mk2 Golf up to December 1988.

£61.76
Ehdis

New
Ehdis 2 PCS Car Relay 12V 40A, 5 Pin Coil, Automotive Relay Contactor Switch
5 Pin Single Pole, Double Throw SPDT so contact can be wired for normally closed or normally open operation

£7.99
New
ACM33221 NEW REPLACEMENT PART , 4 PIN NAiS Relay
We want you to be 100% satisfied.

£13.98
New
GENUINE Vauxhall VIVARO B 1.6 CDTI GLOW PLUG RELAY 95522315 NEW OEM
Vivaro B (2014-16) X82.

£69.95
New
Micro Relay Resistor Protection, 12V 40A 4 Pin Normally Open SPST 2.8mm Pins
12V 4 Pin Normally Open Contact Micro Relay with resistor protection.

£7.99
New
4 Pin Pink Relay For Renault & Vauxhall 40A 12V 20240041, 8200308271
Part Numbers: 20240041, 8200308271.

£11.80
New
Mercedes-Benz Genuine Relay Replacement Repair Fits C-Class SLK A0025422219
All goods will be inspected before a credit is issued.

£58.23 £62.99
New
12v 80/100A 5 Pin Heavy Duty Change Over Relay - Durite Quality 0-728-72
12v 80/100A Change Over relay suitable for applications where the ability to switch a higher current between two circuit

£23.99
New
PowerHub 6 Way Relay Fuse Box 12V Low Current Switching Module
POWERHUB™ 6-WAY RELAY & FUSE BOX.

£45.50
New
12V 40A 5 Pin SPDT Micro Relay with Diode Protection Automotive Changeover
Upgrade your vehicleâs electrical system with this 12V 40A Micro Relay with Diode Protection, featuring a 5-pin SPDT (

£7.99

24 Relays deals are available from: Amazon, eBay stores, starting from £3.48.
The biggest discount we found is 8% on Mercedes-Benz Genuine Relay Replacement Repair Fits C-Class SLK A0025422219 at eBay.
The lowest price we found is £3.48 while the highest is £71.27.
Prices for the best Relays deals average at £22.67.
Last updated on September 23, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Relays.