Dorman Autograde Steel Cup Engine Expansion Plug 1-3/4 In for Chevrolet 1958-2000 and GMC 1960-2000 555-034
Dorman Autograde Steel Cup Engine Expansion Plug 1-3/4 In for Chevrolet 1958-2000 and GMC 1960-2000 555-034
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In-stock orders are processed within 48 hours; transit time is additional.
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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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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.
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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.
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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
- Shipping dimensions (L × W × H)
- Shipping weight
- 1.0 lb
- Barcode
- 019495555346
Billable shipping weight; may include dimensional weight.
Steel cup engine expansion plug 1-3/4 inch diameter for Chevrolet 1958-2000 and GMC 1960-2000 used to replace worn or leaking factory core plugs.
Built to meet the manufacturer's design intent for reliable service using quality steel materials engineered for durable performance in demanding engine environments.
Key Features
- Constructed from high-quality steel for long-lasting durability
- Precise 1-3/4 inch diameter with 0.430 inch height
- Designed to match original equipment form fit and function
- Validated through testing to ensure reliable sealing
- Sold as a convenient 10-piece pack for multiple replacements
Benefits
- Restores proper engine sealing to prevent coolant leaks
- Reduces risk of repeat repairs with robust construction
- Ensures smoother installation with direct-fit design
- Helps maintain optimal engine operating temperature
- Provides cost-effective solution compared to dealer parts
- Backed by over a century of automotive expertise
Application
Ideal for mechanics and DIY enthusiasts repairing cooling system leaks on classic and modern Chevrolet and GMC trucks and cars requiring a 1-3/4 inch core plug replacement.
Fitment Notes
- Compatible with Chevrolet models from 1958 to 2000
- Compatible with GMC models from 1960 to 2000
- Replaces General Motors part numbers 2379621 and 3743389
Why Choose Dorman - Autograde?
- Dorman parts are engineered as direct-fit replacements designed to match OE form fit and function helping ensure a smoother installation and reliable results
What's in the Box
- 10 pieces of steel cup engine expansion plugs
Item Dimensions
- 4.9 inches x 3.6 inches x 2.2 inches
- Weight: 0.7 lbs
