Dorman 555-070 Expansion Plug

In stock
SKU: 591|555070
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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 $21.39
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|555070
  • Barcode 19495555704

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
1983 Ford Fairmont L6 200 3.3L 2 Required; .060 In. Oversized
1983 Ford LTD L6 200 3.3L 2 Required; .060 In. Oversized
1983 Mercury Marquis L6 200 3.3L 2 Required; .060 In. Oversized
1983 Mercury Zephyr L6 200 3.3L 2 Required; .060 In. Oversized
1982 Ford Fairmont L6 200 3.3L 2 Required; .060 In. Oversized
1982 Ford Granada L6 200 3.3L 2 Required; .060 In. Oversized
1982 Ford Mustang L6 200 3.3L 2 Required; .060 In. Oversized
1982 Ford Thunderbird L6 200 3.3L 2 Required; .060 In. Oversized
1982 Mercury Capri L6 200 3.3L 2 Required; .060 In. Oversized
1982 Mercury Cougar L6 200 3.3L 2 Required; .060 In. Oversized
1982 Mercury Zephyr L6 200 3.3L 2 Required; .060 In. Oversized
1981 Ford Fairmont L6 200 3.3L 2 Required; .060 In. Oversized
1981 Ford Granada L6 200 3.3L 2 Required; .060 In. Oversized
1981 Ford Mustang L6 200 3.3L 2 Required; .060 In. Oversized
1981 Ford Thunderbird L6 200 3.3L 2 Required; .060 In. Oversized
1981 Mercury Capri L6 200 3.3L 2 Required; .060 In. Oversized
1981 Mercury Cougar L6 200 3.3L 2 Required; .060 In. Oversized
1981 Mercury Zephyr L6 200 3.3L 2 Required; .060 In. Oversized
1980 Ford Fairmont L6 200 3.3L 2 Required; .060 In. Oversized
1980 Ford Granada L6 250 4.1L 2 Required; .060 In. Oversized
1980 Ford Mustang L6 200 3.3L 2 Required; .060 In. Oversized
1980 Ford Thunderbird L6 200 3.3L 2 Required; .060 In. Oversized
1980 Mercury Capri L6 200 3.3L 2 Required; .060 In. Oversized
1980 Mercury Cougar L6 200 3.3L 2 Required; .060 In. Oversized
1980 Mercury Monarch L6 250 4.1L 2 Required; .060 In. Oversized
1980 Mercury Zephyr L6 200 3.3L 2 Required; .060 In. Oversized
1979 Ford Fairmont L6 200 3.3L 2 Required; .060 In. Oversized
1979 Ford Granada L6 250 4.1L 2 Required; .060 In. Oversized
1979 Ford Mustang L6 200 3.3L 2 Required; .060 In. Oversized
1979 Mercury Capri L6 200 3.3L 2 Required; .060 In. Oversized
1979 Mercury Monarch L6 250 4.1L 2 Required; .060 In. Oversized
1979 Mercury Zephyr L6 200 3.3L 2 Required; .060 In. Oversized
1978 Ford Fairmont L6 200 3.3L 2 Required; .060 In. Oversized
1978 Ford Granada L6 250 4.1L 2 Required; .060 In. Oversized
1978 Mercury Monarch L6 250 4.1L 2 Required; .060 In. Oversized
1978 Mercury Zephyr L6 200 3.3L 2 Required; .060 In. Oversized
1977 Ford Granada L6 200 3.3L 2 Required; .060 In. Oversized
1977 Ford Granada L6 250 4.1L 2 Required; .060 In. Oversized
1977 Ford Maverick L6 200 3.3L 2 Required; .060 In. Oversized
1977 Ford Maverick L6 250 4.1L 2 Required; .060 In. Oversized
1977 Mercury Comet L6 200 3.3L 2 Required; .060 In. Oversized
1977 Mercury Comet L6 250 4.1L 2 Required; .060 In. Oversized
1977 Mercury Monarch L6 200 3.3L 2 Required; .060 In. Oversized
1977 Mercury Monarch L6 250 4.1L 2 Required; .060 In. Oversized
1976 Ford Granada L6 200 3.3L 2 Required; .060 In. Oversized
1976 Ford Granada L6 250 4.1L 2 Required; .060 In. Oversized
1976 Ford Maverick L6 200 3.3L 2 Required; .060 In. Oversized
1976 Ford Maverick L6 250 4.1L 2 Required; .060 In. Oversized
1976 Mercury Comet L6 200 3.3L 2 Required; .060 In. Oversized
1976 Mercury Comet L6 250 4.1L 2 Required; .060 In. Oversized
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Product Specifications

Describe Type: Cup Type
Material: Steel
Maximum Diameter: 2.162 in
Minimum Diameter: 2.147 in
Package Contents: Expansion Plug
Packaging Type: Box
Package Quantity: 10
Brand: Dorman - AutoGrade - Boxed

OE Numbers

DIRECT OE CROSS
387027-C1 NAVISTAR
7HA 6266-A FORD MOTOR COMPANY
C20Z 6266-A FORD MOTOR COMPANY
C20Z 6266-B FORD MOTOR COMPANY
C5AZ 6026-H FORD MOTOR COMPANY