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9 Best automotive replacement electrical system relays of 2026

Explore top picks
  • Best Choice

    1

    5-pin 40/30Amp 12V DC Waterproof Automotive Relay with Heavy-Duty Wire
    iRhapsody
    9.8
    Exceptional

    5-pin 40/30Amp 12V DC Waterproof Automotive Relay with Heavy-Duty Wire

    • is discontinued by manufacturer:No
    • asin:B074FSZWVT
    • product dimensions:7.85 x 1.6 x 1.7 inches 1.25 Pounds
    • date first available:July 31, 2017
    • item model number:13
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  • Value for Money

    2

    Gebildet 2pcs 12V 40A 4 Pin SPST Car Relay Harness JD1912, 12AWG Harness Sockets with Built-in Diode for Automotive Truck Van Boat Motorcycle
    Gebildet
    9.7
    Exceptional

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

    • is discontinued by manufacturer:No
    • country of origin:China
    • package dimensions:9.37 x 2.32 x 1.14 inches 4.59 ounces
    • asin:B078T8CMF6
    • date first available:January 4, 2018

  • 3

    DaierTek 12V Relay Box 6 Way12 AWG Pre-Wired Waterproof Relay Box 6 Slot ATC/ATO Fuse Relay Block Universal Relay Panel for Automotive Car Marine Boat
    DAIERTEK
    9.6
    Exceptional

    DaierTek 12V Relay Box 6 Way12 AWG Pre-Wired Waterproof Relay Box 6 Slot ATC/ATO Fuse Relay Block Universal Relay Panel for Automotive Car Marine Boat

  • 4

    Relay G8HL-H71 (Set of 2), 39794-SDA-A03 39794-SDA-A05 12VDC Automotive Relay - Compatible for 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V
    Casalytics
    9.3
    Excellent

    Relay G8HL-H71 (Set of 2), 39794-SDA-A03 39794-SDA-A05 12VDC Automotive Relay - Compatible for 2003-2014 Accord 2006-2014 Civic 2007-2014 Acura MDX CR-V

    • package dimensions:2.13 x 1.57 x 0.75 inches 1.13 ounces
    • asin:B0CF5T7JM4
    • date first available:August 9, 2023
    • best sellers rank: 13 in Automotive Replacement Accessory Power Relays
    • manufacturer:Casalytics

  • 5

    9038 Relay Bypass Switch Kit, 6-Pack, Black
    Prismora
    9.1
    Excellent

    9038 Relay Bypass Switch Kit, 6-Pack, Black

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  • 6

    GM Genuine Parts 13500114 Multi-Purpose Relay
    GM GENUINE PARTS
    9.0
    Excellent

    GM Genuine Parts 13500114 Multi-Purpose Relay

  • 7

    HHZL AC Relay G8HL-H71 for Honda 4 Pins AC Compressor Starter Relay for Blower Motor/Fans/Clutch/Headlight/Air Conditioning Compatible with Accord Civic Element CR-V CR-Z(2PCS)
    HHZL
    8.7
    Very Good

    HHZL AC Relay G8HL-H71 for Honda 4 Pins AC Compressor Starter Relay for Blower Motor/Fans/Clutch/Headlight/Air Conditioning Compatible with Accord Civic Element CR-V CR-Z(2PCS)

  • 8

    Replacement Relay Harness for Atlas Hydraulic Jack Plates 2014+, Replace AHJRELAYKIT-2-DP
    USSKYBOY
    8.6
    Very Good

    Replacement Relay Harness for Atlas Hydraulic Jack Plates 2014+, Replace AHJRELAYKIT-2-DP

  • 9

    Fkewp 4 PCS Car Power Relays, 5 Pin 12V 40A G8V-RH-1C7T-R-DC12 Multi Purpose Standard Relay, Heavy Duty Automotive Electromechanical Power Relay for Electrical System, Car Accessories
    Fkewp
    8.5
    Good

    Fkewp 4 PCS Car Power Relays, 5 Pin 12V 40A G8V-RH-1C7T-R-DC12 Multi Purpose Standard Relay, Heavy Duty Automotive Electromechanical Power Relay for Electrical System, Car Accessories