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Headlight Relay

Headlight Relay Replacement: Get Them Discounted Online

What is a Headlight Relay and what does it do?

A headlight relay activates the circuit leading to your headlights, thus turning them on and off when it receives the signal. A relay is an electronic switch that can receive a low power signal and then activate or deactivate the electricity flowing into a circuit. Power is conveyed from the battery to the lamps through a set of wires and connectors. To obtain maximum power , make sure there isn't any power lost in the circuit.

Your headlights are critical to driver safety when driving at night, so a faulty relay that stops your headlights from turning on can be a big problem.

When should I replace my Headlight Relay?

If your headlight relay stops working you should replace it immediately so that you can resume using your headlights.

What happens if I don’t?

If your headlight relay is not working and you do not replace it, you will not be able to turn on your headlights. If your vehicle has a separate relay for the high beams or the low beams, you may have a backup alternative. In addition to leaving you at risk of a traffic ticket, driving without your headlights at night is extremely dangerous.

The Kings have found 140 part(s)

  1. ACDelco Headlight Relay 15-8271

    Part Number: 15-8271
    Position: N/A
    Features:
    • RELAY|HDLP
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1992-1996 Mercury Grand Marquis All
    1994-1996 Lincoln Mark VIII All
    1996 Ford Windstar All
    1996 Lincoln Continental All
    $12.78 Ships Free!
    (0)
    Quantity:
  2. ACDelco Headlight Relay D 1741C

    Part Number: D 1741C
    Position: N/A
    Features:
    • RELAY|HDLP
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1998-2001 Oldsmobile Bravada All
    1998-2002 Chevrolet Blazer All
    1998-2002 GMC Sonoma All
    2000 GMC C2500 All
    2000 Chevrolet C2500 All
    2000 Chevrolet K2500 All
    2000 Chevrolet K3500 All
    2000 GMC K3500 All
    2000 GMC K2500 All
    2000-2002 GMC Yukon XL 2500 All
    2000-2002 GMC Yukon XL 1500 All
    2000-2002 GMC Sierra 2500 All
    2000-2002 GMC C3500 All
    2000-2002 GMC Sierra 1500 All
    2000-2002 Chevrolet Tahoe All
    2000-2002 Chevrolet Suburban 1500 All
    2000-2002 Chevrolet Silverado 2500 All
    2000-2002 Chevrolet Silverado 1500 All
    2000-2002 Chevrolet C3500 All
    2000-2002 Chevrolet Suburban 2500 All
    2000-2003 GMC Safari All
    2000-2003 Chevrolet Astro All
    2001 GMC Jimmy All
    2001 GMC Sierra C3 All
    2001-2002 GMC Sierra 3500 All
    2001-2002 GMC Sierra 2500 HD All
    2001-2002 Chevrolet Silverado 3500 All
    2001-2002 GMC Sierra 1500 HD All
    2001-2002 Chevrolet Silverado 2500 HD All
    2001-2002 Chevrolet Silverado 1500 HD All
    2001-2002 Chevrolet S10 All
    2002 Cadillac Escalade All
    2002 Chevrolet Avalanche 1500 All
    2002 Chevrolet Avalanche 2500 All
    2002 GMC Yukon All
    2004 Cadillac XLR All
    $16.87 Ships Free!
    (0)
    Quantity:
  3. ACDelco Headlight Relay PT 420

    Part Number: PT 420
    Position: N/A
    Features:
    • CONNECTOR|SEN-HDLP LVLG RR SUS
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    2004-2007 Cadillac CTS All
    2004-2007 Cadillac SRX All
    2005-2007 Cadillac STS All
    $28.53 Ships Free!
    (0)
    Quantity:
  4. ACDelco Headlight Relay PT 1205

    Part Number: PT 1205
    Position: N/A
    Features:
    • CONNECTOR|RLY-HDLP
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1998 Chevrolet Blazer All
    1998 GMC Jimmy All
    1998 Oldsmobile Bravada All
    1998-1999 Chevrolet P30 All
    1998-1999 GMC P3500 All
    $31.53 Ships Free!
    (0)
    Quantity:
  5. Standard Ignition Headlight Relay RY30T

    Part Number: RY30T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY30T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1988-1991 Eagle Premier All
    1989 Eagle Premier All w/o Bracket-,Square Shape-Square Shape
    1998-1999 Isuzu Amigo All
    1998-1999 Isuzu Rodeo All
    2011-2012 Chrysler 300 V8 5.7L
    $13.97 Ships Free!
    (0)
    Quantity:
  6. Standard Ignition Headlight Relay RY70T

    Part Number: RY70T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY70T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1985-1989 Lincoln Town Car All
    1986-1989 Mercury Sable All
    1986-1989 Ford Taurus All
    1987-1989 Lincoln Mark VII All
    1988-1994 Lincoln Continental All
    1989-1990 Ford Thunderbird All
    1990 Ford E-250 Econoline Club Wagon All
    1990 Ford Ranger All
    1990 Ford E-350 Econoline Club Wagon All
    1990 Ford E-350 Econoline All
    1990 Ford E-150 Econoline Club Wagon All
    1990 Ford E-250 Econoline All
    1990 Ford E-150 Econoline All
    1990 Ford Bronco II All
    1990-1992 Ford Aerostar All
    1991-1992 Ford Explorer All
    1996 Lincoln Town Car All w/o Bracket-w/ Bracket
    1997-1998 Lincoln Town Car All w/ Bracket-w/o Bracket
    $23.24 Ships Free!
    (0)
    Quantity:
  7. Standard Ignition Headlight Relay RY531T

    Part Number: RY531T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY531T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1996 Chevrolet G30 All
    1999 Buick Century All
    2003-2004 Chevrolet Cavalier All
    $23.54 Ships Free!
    (0)
    Quantity:
  8. Standard Ignition Headlight Relay RY27T

    Part Number: RY27T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY27T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1984 Chevrolet Caprice All 4 Term.
    1984-1985 Chevrolet Camaro All w/ US Emissions-w/ U.S. Emissions
    1985-1986 Chevrolet Caprice All
    1986 Chevrolet Camaro All w/ U.S. Emissions-w/ US Emissions
    $18.32 Ships Free!
    (0)
    Quantity:
  9. Standard Ignition Headlight Relay RY363T

    Part Number: RY363T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY363T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1995-1997 Nissan Pathfinder All
    1996-1998 Nissan Maxima All
    1997-1999 Infiniti QX4 All
    1998-1999 Infiniti I30 All
    $19.41 Ships Free!
    (0)
    Quantity:
  10. Standard Ignition Headlight Relay RY209T

    Part Number: RY209T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY209T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1989 Honda Accord All
    1999-2004 Acura RL All High Beam
    $26.48 Ships Free!
    (0)
    Quantity:
  11. Standard Ignition Headlight Relay RY225T

    Part Number: RY225T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY225T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1989-1990 Ford Probe All Exc. Canada
    1990-1994 Mazda 323 All
    1990-1994 Mazda Protege All
    1991-1996 Ford Escort All
    1991-1997 Mercury Tracer All
    1992-1995 Mazda MX-3 All
    1996-1998 Suzuki Sidekick All
    1996-1998 Suzuki X-90 All
    $22.27 Ships Free!
    (0)
    Quantity:
  12. Standard Ignition Headlight Relay RY109T

    Part Number: RY109T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY109T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1990 Chevrolet Astro All w/ Canada Emissions-w/ Daytime Running Lights-,w/ Canada Emissions
    1990 Chevrolet R2500 Suburban All w/ Daytime Running Lights-,w/ Canada Emissions-w/ Canada Emissions
    1990 Chevrolet R3500 All w/ Canada Emissions-w/ Daytime Running Lights-,w/ Canada Emissions
    1990 Chevrolet V2500 Suburban All w/ Daytime Running Lights-,w/ Canada Emissions-w/ Canada Emissions
    1990 Chevrolet V3500 All ,w/ Canada Emissions-w/ Canada Emissions-w/ Daytime Running Lights
    1990 GMC Jimmy All ,w/ Canada Emissions-Round Body-w/ Canada Emissions
    1990 GMC R1500 Suburban All Round Body-w/ Canada Emissions-,w/ Canada Emissions
    1990 GMC R2500 Suburban All w/ Canada Emissions-,w/ Canada Emissions-Round Body
    1990 GMC V1500 Suburban All Round Body-,w/ Canada Emissions-w/ Canada Emissions-Oval Shape
    1990 GMC V2500 Suburban All w/ Canada Emissions-,w/ Canada Emissions-Round Body
    1994 Buick Regal All
    $17.77 Ships Free!
    (0)
    Quantity:
  13. Standard Ignition Headlight Relay RY416T

    Part Number: RY416T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY416T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1995-1996 Nissan 300ZX All
    1998-2000 Nissan Pathfinder All
    2001-2004 Nissan Maxima All
    $19.78 Ships Free!
    (0)
    Quantity:
  14. Standard Ignition Headlight Relay RY282T

    Part Number: RY282T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY282T
    Condition: New
    This product fits the following vehicles open
    Vehicle Body Engine Notes
    1993-1994 Pontiac Sunbird All All
    1994 Oldsmobile Cutlass Cruiser All All
    1994-1997 Oldsmobile Cutlass Supreme All All
    1994-1997 Pontiac Firebird All All
    1994-1999 Chevrolet Lumina All All
    1994-1999 Pontiac Bonneville All All
    1994-1999 Pontiac Grand Prix All All
    1995 Chevrolet Monte Carlo All V6 3.1L
    1995-1998 Chevrolet P30 All All
    1995-1998 GMC P3500 Stripped Chassis All
    1995-2004 Buick Regal All All
    1996-1999 Chevrolet Monte Carlo All All
    1997 Chevrolet Lumina All All Low Beam
    1997 Oldsmobile Cutlass All All
    1998 Chevrolet Monte Carlo All All Low Beam
    1998 Oldsmobile Bravada All All
    1998 Pontiac Sunfire All All
    1998-1999 Oldsmobile Intrigue All All
    2000-2005 Buick Century All All
    2006 Isuzu i-280 All All Square Relay
    2006 Isuzu i-350 All All Square Relay
    2007 Isuzu i-290 All All Square Relay
    2007 Isuzu i-370 All All Square Relay
    $21.63 Ships Free!
    (0)
    Quantity:
  15. Standard Ignition Headlight Relay RY465T

    Part Number: RY465T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY465T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    2000-2005 Toyota Echo All
    2004-2005 Scion xB L4 1.5L
    2006 Scion xB All
    $18.76 Ships Free!
    (0)
    Quantity:
  16. Standard Ignition Headlight Relay RY241T

    Part Number: RY241T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY241T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1992 Cadillac Brougham All
    1992 Cadillac Commercial Chassis All
    $14.32 Ships Free!
    (0)
    Quantity:
  17. Standard Ignition Headlight Relay RY612T

    Part Number: RY612T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY612T
    Condition: New
    This product fits the following vehicles open
    Vehicle Body Engine Notes
    1993 Cadillac Allante All All
    1993 Cadillac Commercial Chassis All All
    1993 Cadillac Fleetwood All All
    1993-1995 Cadillac Eldorado All All
    1993-1998 Cadillac Seville All All
    1994-1995 Cadillac DeVille All All
    1995 Chevrolet Corvette All All
    1995-2001 Ford Explorer All All
    1995-2003 Ford Ranger All All
    1995-2007 Ford Taurus All All
    1996 Plymouth Breeze All L4 2.4L
    1997 Ford F Super Duty All All
    1997 Ford F-350 All All
    1997-1999 Ford F-150 All All
    1997-1999 Ford F-250 All All
    1997-2002 Ford Expedition All All
    1998 Dodge B3500 All All
    1998 Dodge B2500 All All
    1998 Dodge B1500 All All
    1998 Chrysler Sebring Convertible All
    1998-2000 Dodge Durango All All
    1998-2002 Dodge Ram 1500 All All
    1998-2002 Dodge Ram 2500 All All
    1998-2002 Dodge Ram 3500 All All
    1998-2002 Lincoln Navigator All All
    1999 Ford F-350 Super Duty All All
    1999 Ford F-250 Super Duty All All
    1999-2003 Dodge Ram 3500 Van All All
    1999-2003 Dodge Ram 2500 Van All All
    1999-2003 Dodge Ram 1500 Van All All
    1999-2005 Jeep Grand Cherokee All All
    2000-2007 Ford Focus All All
    2001 Ford Explorer Sport Trac All All
    2001-2002 Dodge Viper All All
    2002-2007 Jeep Liberty All All High Beam
    2004-2006 Pontiac GTO All All
    2007 Chrysler Aspen All All
    $12.95 Ships Free!
    (0)
    Quantity:
  18. Standard Ignition Headlight Relay RY46T

    Part Number: RY46T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY46T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1981-1982 Mercury Marquis All w/ Auto Control-,On/Off Delay-On/Off Delay
    1981-1986 Mercury Grand Marquis All w/ Auto Control-,On/Off Delay-On/Off Delay
    1983-1987 Mercury Grand Marquis All On/Off Delay-w/ Auto Control-,On/Off Delay
    1984 Mercury Grand Marquis All ,On/Off Delay-On/Off Delay-w/ Auto Control
    1985-1986 Lincoln Mark VII All
    $15.13 Ships Free!
    (0)
    Quantity:
  19. Standard Ignition Headlight Relay RY242T

    Part Number: RY242T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY242T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine Notes
    1987-1988 Cadillac Cimarron All
    1991 Buick Century All
    1991 Buick Roadmaster All
    1991 Chevrolet Caprice All
    1991 GMC Syclone All w/ Canada Emissions
    1991 Oldsmobile Bravada All w/ Canada Emissions
    1991-1993 GMC Sonoma All w/ Canada Emissions
    1992-1994 Oldsmobile Bravada All
    1993 GMC Typhoon All
    $19.04 Ships Free!
    (0)
    Quantity:
  20. Standard Ignition Headlight Relay RY291T

    Part Number: RY291T
    Position: N/A
    Features:
    • Standard Ignition Headlight Relay RY291T
    Condition: New
    This product fits the following vehicles open
    Vehicle Engine
    1984-1986 Toyota 4Runner All
    1993-1995 Lexus GS300 All
    $18.00 Ships Free!
    (0)
    Quantity:
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How to do it: Replacing your Headlight Relay: (h2):

  1. Pop the hood of your vehicle and find the fuse box within the engine bay. Depending on the make and model of your vehicle, it could either be located on the passenger side or the driver’s side. It is typically in a corner of the engine bay, though, so it should be easy to find. Open up the cover lid of the fuse box.
  2. Use the diagram that should be on the inside of the lid to locate the headlight relay. You may have two different headlight relays, as a lot of vehicles use separate ones for the regular headlight beams and the high beams.
  3. Pull the relay out of the fuse box with your hand. If you have trouble, gently pry it out with a flat head screwdriver.
  4. Take the new relay and plug it into place, pushing down until it is secure.
  5. Test the new headlight relay and make sure that it is working properly.

Anything else I need to know?

For some vehicles, you may need to remove some ancillary parts to get to the Headlight Relay Replacement, so be prepared for that. If you run into problems with that process, you may need to do some research to get instructions that are specific to your vehicle.

While you usually need to disconnect the battery from your vehicle in order to work on anything electrical, changing relays or fuses in the fuse box is an exception. This relatively easy work is also safe and simple.

Select your discounted Headlight Relay Replacement online from Car Part Kings for fast shipping, Live Support and great prices.