Adapters; H4 Non-Standard Pin-Out Swap; Pair

On rare occasion, the three-pin low and high beam connection from the wire harness on classic cars is wired in an unconventional format. The pin-out for low, high, and ground may be different than what is considered industry standard, or the positioning of those pins may be different. In any case, these adapter cables will allow you to connect the Holley RetroBright Headlights to your original wiring, without modification.

• 1973 - 1975 Buick Apollo
• 1973 - 1975 Buick Regal

• 1967 - 1981 Chevrolet Camaro
• 1971 - 1973 Chevrolet Chevelle
• 1962 - 1968 Chevrolet Chevy II Nova
• 1973 - 1975 Chevrolet Malibu

• 1969 - 1970 Chevrolet Blazer
• 1975 - 1980 Chevrolet C10
• 1960 - 1967 Chevrolet C10 Panel
• 1960 - 1974 Chevrolet C10 Pickup
• 1967 - 1980 Chevrolet C10 Suburban
• 1975 - 1980 Chevrolet C20
• 1967 - 1967 Chevrolet C20 Panel
• 1960 - 1974 Chevrolet C20 Pickup
• 1967 - 1980 Chevrolet C20 Suburban
• 1975 - 1980 Chevrolet C30
• 1960 - 1966 Chevrolet C30 Panel
• 1960 - 1974 Chevrolet C30 Pickup
• 1971 - 1975 Chevrolet El Camino
• 1960 - 1966 Chevrolet Suburban

• 1975 - 1976 Dodge Charger
• 1975 - 1976 Dodge Coronet
• 1964 - 1976 Dodge Dart

• 1975 - 1980 Dodge D100
• 1958 - 1974 Dodge D100 Pickup
• 1960 - 1967 Dodge D100 Series
• 1977 - 1980 Dodge D150
• 1975 - 1980 Dodge D200
• 1958 - 1974 Dodge D200 Pickup
• 1960 - 1967 Dodge D200 Series
• 1975 - 1980 Dodge D300
• 1958 - 1974 Dodge D300 Pickup
• 1960 - 1967 Dodge D300 Series
• 1974 - 1980 Dodge Ramcharger
• 1975 - 1977 Dodge W100
• 1958 - 1974 Dodge W100 Pickup
• 1960 - 1967 Dodge W100 Series
• 1977 - 1980 Dodge W150
• 1975 - 1980 Dodge W200
• 1958 - 1974 Dodge W200 Pickup
• 1960 - 1967 Dodge W200 Series
• 1975 - 1980 Dodge W300
• 1958 - 1974 Dodge W300 Pickup
• 1960 - 1967 Dodge W300 Series

• 1960 - 1970 Ford Falcon
• 1975 - 1977 Ford Granada
• 1970 - 1977 Ford Maverick
• 1964 - 1973 Ford Mustang
• 1974 - 1978 Ford Mustang II
• 1971 - 1978 Ford Pinto
• 1963 - 1964 Ford Sprint
• 1977 - 1979 Ford Thunderbird

• 1966 - 1978 Ford Bronco
• 1961 - 1979 Ford F-100
• 1975 - 1979 Ford F-150
• 1961 - 1979 Ford F-250
• 1961 - 1979 Ford F-350
• 1961 - 1965 Ford Falcon Sedan Delivery
• 1960 - 1966 Ford Ranchero

• 1962 - 1966 Ford Club Wagon
• 1961 - 1967 Ford Econoline
• 1962 - 1965 Ford Station Bus

• 1958 - 1959 GMC 100
• 1960 - 1965 GMC 1000 Series
• 1958 - 1959 GMC 150
• 1960 - 1965 GMC 1500 Series
• 1958 - 1959 GMC 250
• 1960 - 1965 GMC 2500 Series
• 1958 - 1959 GMC 300
• 1958 - 1959 GMC 370
• 1975 - 1978 GMC C15
• 1975 - 1978 GMC C15 Suburban
• 1973 - 1974 GMC C15/C1500 Pickup
• 1973 - 1974 GMC C15/C1500 Suburban
• 1979 - 1980 GMC C1500
• 1979 - 1980 GMC C1500 Suburban
• 1975 - 1978 GMC C25
• 1975 - 1978 GMC C25 Suburban
• 1973 - 1974 GMC C25/C2500 Pickup
• 1973 - 1974 GMC C25/C2500 Suburban
• 1979 - 1980 GMC C2500
• 1979 - 1980 GMC C2500 Suburban
• 1975 - 1978 GMC C35
• 1973 - 1974 GMC C35/C3500 Pickup
• 1979 - 1980 GMC C3500
• 1973 - 1980 GMC Jimmy
• 1960 - 1965 GMC Suburban

• 1975 - 1978 Mercury Bobcat
• 1971 - 1977 Mercury Comet
• 1975 - 1977 Mercury Monarch

• 1964 - 1974 Plymouth Barracuda
• 1970 - 1974 Plymouth Cuda
• 1970 - 1976 Plymouth Duster
• 1975 - 1976 Plymouth Fury
• 1965 - 1966 Plymouth Satellite
• 1971 - 1976 Plymouth Scamp
• 1963 - 1976 Plymouth Valiant

• 1974 - 1978 Plymouth Trailduster

• 1970 - 1976 Pontiac Firebird
• 1971 - 1977 Pontiac Ventura