Ford Radiator Overflow Bottle Cap Mustang 5.0L 1986-1993/ 3.8L 1994-2004



  • OEM Ford Licensed
  • Direct-Fit Replacement
  • Includes Strap
  • Durable Plastic Construction

Ford Radiator Overflow Bottle Cap for 1986, 1987, 1988, 1989, 1990, 1991, 1992 and 1993 Mustangs with a 5.0L Engine and 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004 Mustangs with a 3.8L Engine.

This is a direct OEM Ford (E6ZZ-8K103-A) replacement for your original radiator overflow bottle cap. This is a premium quality Ford replacement part.

Features and Benefits:
- Fits 1986-1993 Mustangs with a 5.0L Engine
- Fits 1994-2004 Mustangs with a 3.8L Engine
- Ford OEM Part
- Factory Style Replacement

These overflow bottle caps fit V6 and V8 engines on various Fox Bodies and SN95 Mustangs. They install simply in the factory location.

California Residents: Proposition 65 Warning

Installation Videos

Video Transcript

We’re here with a radiator bottle overflow cap, fitting your 1986 through 2004 Mustang.

This radiator overflow bottle cap is going to fit any '86 through '93 five liter Mustang, or any '94 through '04 V-6 that does not use a factory sensor stock cap. It will be a direct replacement for the original and includes the retaining strap, and the cap itself.

This radiator cap, along with matching overflow bottles for your '86 through '04 Mustang are available here at

Vehicle Fitment

This product will fit the following Mustang years:

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