Dorman 550-022 Expansion Plug

In stock
SKU: 591|550022
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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 $16.53
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|550022
  • Barcode 19495550228

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
1987 Ford E-250 Econoline Club Wagon V8 420 6.9L 7 Required
1987 Ford E-350 Econoline V8 420 6.9L 7 Required
1987 Ford E-350 Econoline Club Wagon V8 420 6.9L 7 Required
1987 Ford F-250 V8 420 6.9L 7 Required
1987 Ford F-350 V8 420 6.9L 7 Required
1986 Ford E-250 Econoline Club Wagon V8 420 6.9L 7 Required
1986 Ford E-350 Econoline V8 420 6.9L 7 Required
1986 Ford E-350 Econoline Club Wagon V8 420 6.9L 7 Required
1986 Ford F-250 V8 420 6.9L 7 Required
1986 Ford F-350 V8 420 6.9L 7 Required
1985 Ford E-250 Econoline Club Wagon V8 420 6.9L 7 Required
1985 Ford E-350 Econoline V8 420 6.9L 7 Required
1985 Ford E-350 Econoline Club Wagon V8 420 6.9L 7 Required
1985 Ford F-250 V8 420 6.9L 7 Required
1985 Ford F-350 V8 420 6.9L 7 Required
1984 Ford E-250 Econoline Club Wagon V8 420 6.9L 7 Required
1984 Ford E-350 Econoline V8 420 6.9L 7 Required
1984 Ford E-350 Econoline Club Wagon V8 420 6.9L 7 Required
1984 Ford F-150 V8 420 6.9L 7 Required
1984 Ford F-250 V8 420 6.9L 7 Required
1984 Ford F-350 V8 420 6.9L 7 Required
1983 Ford E-250 Econoline Club Wagon V8 420 6.9L 7 Required
1983 Ford E-350 Econoline V8 420 6.9L 7 Required
1983 Ford E-350 Econoline Club Wagon V8 420 6.9L 7 Required
1983 Ford F-250 V8 420 6.9L 7 Required
1983 Ford F-350 V8 420 6.9L 7 Required

Product Specifications

Attachment Type: Press Fit
Color: Silver
Depth: 0.144 in
Describe Type: Cylinder Head Plug
Material: Steel
Maximum Diameter: 1.502 in
Minimum Diameter: 1.502 in
Package Contents: 10 Expansion Plugs
Package Quantity: 10
Brand: Dorman - AutoGrade - Boxed
Packaging Type: Box

OE Numbers

DIRECT OE CROSS
133453-R1 NAVISTAR
E3TZ 6026-A FORD MOTOR COMPANY
F4TZ 6026-A FORD MOTOR COMPANY