Best Deals This Week

Best Relays Deals Online in the US (10 deals found)

Last Updated - March 15, 2026 Sort By:

Best Choice

New
irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay
Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for

$25.99
Used
irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay Kit with Heavy-Duty Pigtail, 5-PIN SPDT Automotive Relay
Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for

$18.19
Best Value

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

$12.58 $13.99
New
Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring Harness-5 Pack, 2 Years Warranty
High switching capability: Normally open 40A/14V DC and normally close 30A/14V DC. Suitable for Nilight LED light bar wiring harness kit

$12.59 $13.50
New
Gebildet 2pcs JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Motorcycle Boat
Integrated Diode: Each relay includes a built-in diode that suppresses induced voltage during switching, safeguarding your electrical components from potential damage.

$7.99
New
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
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.

$14.99
New
Electromagnetic Power Relay, 8-Pin 10 AMP 24V AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY4NJ 2PCS [Applicable for DIN Rail System]
Electromagnetic relays are widely used: household air conditioner compressor motors, fan motors, cooling pump motors, starter relays for car starters, spur relays, motors, generator circuit breakers, industrial relays, etc

$12.99
15% Off

New
Nilight 5 Pack Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Style 12V Automotive Relay and Harness Set
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

$21.35 $24.99
New
AEDIKO 10pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level
12V Relay Module: Working Voltage: DC 12V; Maximum Load: AC 250V/10A, DC 30V/10A; Trigger Current of Opto-Isolator: 5mA

$11.99
New
4 PCS Relays, 5 Pin Relay, 40A Waterproof Car Relays, 12V Relay Switch for Electric Cooling Fans, Motor Starters, Automotive Taillights
Quality Material: The a/c relay housing is made of PA66 flame-retardant material with pure copper enameled wires to ensure excellent heat dissipation and magnetism, which enhances resistance to high temperatures and arc erosion, providing excellent conductivity and long-term reliability

$8.59

10 Relays deals are available from: Amazon stores, starting from $7.99.
The biggest discount we found is 15% on Nilight 5 Pack Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Style 12V Automotive Relay and Harness Set at Amazon.
The lowest price we found is $7.99 while the highest is $25.99.
Prices for the best Relays deals average at $14.72.
Last updated on March 15, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Relays.