Dorman 555-086 Expansion Plug

In stock
SKU: 591|555086
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 $18.49
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|555086
  • Barcode 19495555865

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
1997 Isuzu Trooper V6 3.2L (3165cc) 2 Required
1996 Isuzu Trooper V6 3.2L (3165cc) 2 Required
1995 Isuzu Trooper V6 3.2L (3165cc) 2 Required
1994 Isuzu Trooper V6 3.2L (3165cc) 2 Required
1993 Isuzu Trooper V6 3.2L (3165cc) 2 Required
1992 Isuzu Trooper V6 3.2L (3165cc) 2 Required

Product Specifications

Describe Type: Cup Type
Material: Steel
Maximum Diameter: 1.202 in
Minimum Diameter: 1.189 in
Package Contents: Expansion Plug
Package Quantity: 10
Brand: Dorman - AutoGrade - Boxed
Packaging Type: Box

OE Numbers

DIRECT OE CROSS
8-94241-638-0 ISUZU
9778778 GENERAL MOTORS