Part #: 839012

Pioneer Cables 839012 Woodruff Key

88 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$13.17Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Lincoln, and Mercury, LTD, Continental, Mark V, Grand Marquis, Marquis, Custom 500, Elite, Gran Torino, Thunderbird, Torino, Mark IV, Cougar, Montego, Country Sedan, Country Squire, Galaxie 500, Ranch Wagon, Colony Park, Monterey, Custom, Mark III, Fairlane, Marauder, Mustang, Comet, Cyclone, Commuter, Montclair, Park Lane, Galaxie, Caliente, Villager, Voyager, 300, and Meteor
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Pioneer Cables 839012 Woodruff Key for Ford and Mercury

Pioneer Cables 839012 is a Woodruff key for classic Ford, Lincoln, and Mercury applications that use a wide 3/16" x 1 13/32" hi-perf. key profile. It is listed for a broad range of vintage V8-era vehicles, including Ford Mustang, Ford Thunderbird, and Mercury Cougar applications.

Key Features

  • Woodruff key for engine and drivetrain service applications
  • Wide hi-performance profile: 3/16" x 1 13/32"
  • Direct fitment listed for multiple Ford, Lincoln, and Mercury models
  • Part number 839012 for catalog and service matching
  • Fits classic applications such as Ford LTD, Mercury Marquis, and Lincoln Continental

Detailed Description

Pioneer Cables 839012 is a replacement Woodruff key used in service work where a precise keyed connection is required. The fitment data covers 1961-1978 vehicles across Ford, Lincoln, and Mercury, including Fits 1967-1969 Ford Mustang, N/A; Fits 1961-1968 Ford Thunderbird, N/A; and Fits 1968-1978 Lincoln Continental, N/A. This part number 839012 also appears in listings for Mercury Cougar, Mercury Montego, Mercury Colony Park, Mercury Marauder, Mercury Villager, Mercury Marquis, Mercury Grand Marquis, Ford LTD, and Ford Thunderbird applications.

What It Is Used For

  • Replacing a worn or damaged Woodruff key during engine service
  • Restoring proper alignment between keyed components
  • Addressing fitment issues caused by incorrect key size
  • Supporting maintenance on classic Ford, Lincoln, and Mercury drivetrains

Installation Notes and Tips

Verify the required key dimensions before installation: 3/16" x 1 13/32" wide hi-perf. specification. Match the application to the exact year, make, and model listed for your vehicle, since fitment varies across Ford Mustang, Ford Thunderbird, Mercury Cougar, and related platforms. Confirm the keyed slot is clean and free of burrs before seating the part.

Quality Assurance

Pioneer Cables 839012 is cataloged as a service-grade hardware component for the listed classic vehicle applications. This part cross-references no additional part numbers in the provided data.

This part fits 88 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1978FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1978LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1978MercuryGrand Marquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1978MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1977FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1977LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1977MercuryGrand Marquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1977MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976FordThunderbird7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976MercuryCougar7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976MercuryGrand Marquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1976MercuryMontego7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975FordThunderbird7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975MercuryCougar7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975MercuryGrand Marquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1975MercuryMontego7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974FordThunderbird7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974MercuryColony Park7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974MercuryCougar7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1974MercuryMontego7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973FordThunderbird7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973MercuryColony Park7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973MercuryCougar7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1973MercuryMontego7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1972FordLTD7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1972FordThunderbird7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1972LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1972MercuryColony Park7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1972MercuryMarquis7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1971FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1971LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1970FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1970LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1970MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1970MercuryMarauder6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1970MercuryMarquis6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969FordMustang6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969MercuryCougar6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969MercuryMarauder6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969MercuryMarquis6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1969MercuryMontego6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968FordMustang6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968LincolnContinental7.5LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968MercuryCougar6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968MercuryMarquis6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1968MercuryMontego6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1967FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1967FordMustang6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1967FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1967MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1967MercuryCougar6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1967MercuryVillager6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1966FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1966FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1966MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1966MercuryMarauder6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1966MercuryVillager6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1965FordLTD6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1965FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1965MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1965MercuryMarauder6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1964FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1964MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1964MercuryMarauder6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1963FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1963MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1963MercuryMarauder6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1962FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1962MercuryColony Park6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"
1961FordThunderbird6.4LV8N/AKit - Hi-Perf. - Wide - 3/16" x 1 13/32"

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.