Dorman 555-051 Expansion Plug

In stock
SKU: 591|555051
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price $21.00
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|555051
  • Barcode 19495555513

Product Description

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

  • Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience

Detailed Applications

Year Make Model Configuration Positions Application Notes
2004 Ford Escape L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2004 Ford Focus L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2003 Ford Escape L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2003 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2003 Ford Focus L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2002 Ford Escape L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2002 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2002 Ford Focus L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2002 Mercury Cougar L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2001 Ford Escape L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2001 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2001 Ford Focus L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2001 Mercury Cougar L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2000 Ford Contour L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2000 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2000 Ford Focus L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2000 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
2000 Mercury Cougar L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
2000 Mercury Mystique L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1999 Ford Contour L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1999 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1999 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1999 Mercury Cougar L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1999 Mercury Mystique L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1999 Mercury Tracer L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1998 Ford Contour L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1998 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1998 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1998 Mercury Mystique L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1998 Mercury Tracer L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1997 Ford Contour L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1997 Ford Escort L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1997 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1997 Mercury Mystique L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1997 Mercury Tracer L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1996 Ford Contour L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1996 Ford Escort L4 116 1.9L 1 Required; Shallow Cup Type; 2.1875 In.
1996 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1996 Mercury Mystique L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1996 Mercury Tracer L4 116 1.9L 1 Required; Shallow Cup Type; 2.1875 In.
1995 Ford Contour L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1995 Ford Escort L4 116 1.9L 1 Required; Shallow Cup Type; 2.1875 In.
1995 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1995 Mercury Mystique L4 121 2.0L (1989cc) 1 Required; Shallow Cup Type; 2.1875 In.
1995 Mercury Tracer L4 116 1.9L 1 Required; Shallow Cup Type; 2.1875 In.
1994 Ford Escort L4 116 1.9L 1 Required; Shallow Cup Type; 2.1875 In.
1994 Ford Tempo L4 140 2.3L 1 Required; Shallow Cup Type; 2.1875 In.
1994 Mazda B4000 V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1994 Mazda Navajo V6 245 4.0L 2 Required; Shallow Cup Type; 2.1875 In.
1994 Mercury Topaz L4 140 2.3L 1 Required; Shallow Cup Type; 2.1875 In.
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Product Specifications

Describe Type: Cup Type
Material: Steel
Maximum Diameter: 2.208 in
Minimum Diameter: 2.195 in
Package Contents: Expansion Plug
Packaging Type: Box
Package Quantity: 10
Brand: Dorman - AutoGrade - Boxed

OE Numbers

DIRECT OE CROSS
C5AZ 6266-A FORD MOTOR COMPANY
E1FZ 6026-A FORD MOTOR COMPANY
E7DZ-6026-C FORD MOTOR COMPANY
EAN 6266-A FORD MOTOR COMPANY
F0CZ 6026-B FORD MOTOR COMPANY
F5RZ 6026-C FORD MOTOR COMPANY
ZZL1-10-327 MAZDA