• Dorman Autograde Steel Cup Expansion Plug 34.3mm for Chrysler GM Isuzu 555-104
  • Dorman Autograde Steel Cup Expansion Plug 34.3mm for Chrysler GM Isuzu 555-104
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Dorman - Autograde

Dorman Autograde Steel Cup Expansion Plug 34.3mm for Chrysler GM Isuzu 555-104

Dorman Autograde Steel Cup Expansion Plug 34.3mm for Chrysler GM Isuzu 555-104

$22.96
$22.96
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Returns

Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.

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Return details & how to start

Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.

Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.

After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.

For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

Specifications

Product details shared across all variants.

Product type
Engine Expansion Plug
Category
Motor Vehicle Engine Parts
Item condition
New
Manufacturer type
Aftermarket
Shipping weight
1.0 lb
Barcode
00019495556046

Billable shipping weight; may include dimensional weight.

Steel cup expansion plug 34.3mm for Chrysler GM and Isuzu engines used to replace worn or leaking factory core plugs.

Built to meet the manufacturer's design intent for reliable service. This plug is constructed from quality steel materials and engineered to match the original part's fit and function for a secure seal.

Key Features

  • Material: Steel construction for durability
  • Dimensions: 34.3mm diameter with 0.497 inch height
  • Design: Cup style expansion plug
  • Compatibility: Fits specified Chrysler General Motors and Isuzu models
  • Package Quantity: Sold as a 10 piece set
  • Part Number: 555-104

Benefits

  • Restores engine sealing to prevent coolant leaks
  • Direct fit replacement reduces installation time
  • Quality materials help resist corrosion and failure
  • Prevents overheating caused by leaking core plugs
  • Backed by over a century of automotive experience
  • Cost-effective solution compared to dealer parts

Application

Ideal for mechanics and DIYers repairing cooling system leaks on older Chrysler vehicles from 1984 to 1986 General Motors trucks and cars from 1976 to 2006 and Isuzu models from 1989 to 1992.

Fitment Notes

  • Compatible with select Chrysler models years 1984 to 1986
  • Compatible with select General Motors models years 1976 to 2006
  • Compatible with select Isuzu models years 1989 to 1992
  • Verify engine block hole size before installation

Why Choose Dorman?

  • Dorman parts are engineered as direct-fit replacements designed to match OE form fit and function
  • Products are validated through testing to stand up to daily driving demands
  • Strong focus on fit durability and dependable performance
  • Helps reduce the risk of repeat repairs

What's in the Box

  • 10 Piece set of steel cup expansion plugs

Item Dimensions

  • Length: 3.7 inches
  • Width: 2.4 inches
  • Height: 2.2 inches
  • Weight: 0.5 lbs
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Vehicle fitment