Our electrical and electronic parts are subject to strict quality control testing .  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1978-1983 American Motors Concord 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1980-1988 American Motors Eagle 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1976-1977 American Motors Hornet 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1978-1984 Ford Bronco 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1984 Ford Bronco II 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1974 Ford Country Sedan 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1972 Ford Custom 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1977 Ford Custom 500 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1983 Ford E100 Van 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1985 Ford E150 Van 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1985 Ford E250 Van 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1985 Ford E350 Van 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1982 Ford EXP 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975 Ford Elite 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1981-1982 Ford Escort 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1973-1983 Ford F100 Truck 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1984 Ford F150 Truck 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1973-1984 Ford F250 Truck 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1970 Ford Fairlane 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1978-1983 Ford Fairmont 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1960-1970 Ford Falcon 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1967 Ford Galaxie 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1974-1976 Ford Gran Torino 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1982 Ford Granada 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1986 Ford LTD 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1977-1979 Ford LTD II 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1976-1977 Ford Maverick 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1964-1973 Ford Mustang 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1979-1997 Ford Mustang 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1974 Ford Ranch Wagon 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1974-1979 Ford Ranchero 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1983-1984 Ford Ranger 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1984-1987 Ford Tempo 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1961-1982 Ford Thunderbird 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1968-1976 Ford Torino 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1973-1983 Jeep CJ5 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1973-1975 Jeep CJ6 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1976-1986 Jeep CJ7 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1981-1985 Jeep CJ8 Scrambler 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1973-1983 Jeep DJ Series 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1971-1982 Lincoln Continental 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1971 Lincoln Mark III 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1972-1976 Lincoln Mark IV 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1977-1979 Lincoln Mark V 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1980-1983 Lincoln Mark VI 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1984-1986 Lincoln Mark VII 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1982-1986 Lincoln Town Car 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1977-1980 Lincoln Versailles 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1967 Mercury Brougham 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1981-1986 Mercury Capri 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1974 Mercury Colony Park 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1960-1969 Mercury Comet 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1971-1977 Mercury Comet 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1967-1982 Mercury Cougar 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1971 Mercury Cyclone 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1982 Mercury Grand Marquis 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1982 Mercury LN7 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1981-1982 Mercury Lynx 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1967-1983 Mercury Marquis 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1975-1980 Mercury Monarch 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1968 Mercury Montclair 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1968-1976 Mercury Montego 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1974 Mercury Monterey 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1966-1968 Mercury Park Lane 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1984-1987 Mercury Topaz 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
  • 1978-1983 Mercury Zephyr 2 Inch Diameter Lock Ring & Gasket Set Dorman 579-003
Part #: DMFSU00021

Ships in 1-3 Business Days. Delivery times vary.

Dorman
Brand #: 579-003

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Customer Feedback

"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
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