Dorman Autograde Engine Expansion Plug 2 Inch Steel Cup for Chevrolet GMC 550-028
Dorman Autograde Engine Expansion Plug 2 Inch Steel Cup for Chevrolet GMC 550-028
Shipping calculated at checkout.
To United StatesChange
Final options and totals are confirmed at checkout.
Low stock: 1 left
Shipping & returns
Shipping details
In-stock orders are processed within 48 hours; transit time is additional.
International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.
Read the shipping policyReturns
Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.
Read the full return policyReturn 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.
Concave steel cup engine expansion plug for 1952 to 1962 Chevrolet and GMC vehicles used to replace worn or leaking original freeze plugs.
Built to meet the manufacturer's design intent for reliable service. This component is engineered from quality steel materials to ensure a secure seal and long-lasting durability in demanding engine environments.
Key Features
- Constructed from durable steel for corrosion resistance
- Concave cup design matches original equipment specifications
- Measures 2 inches in diameter with a 2.000 inch height
- Direct replacement for specific legacy Chevrolet and GMC models
- Validated by product experts with over a century of automotive experience
Benefits
- Restores proper sealing to prevent coolant leaks and engine overheating
- Eliminates the risk of repeat repairs caused by inferior materials
- Ensures a precise fit for smoother installation without modification
- Extends engine life by maintaining correct cooling system pressure
- Provides trustworthy quality backed by extensive industry testing
Application
Ideal for classic car restorations and maintenance on vintage Chevrolet and GMC trucks or cars requiring block plug replacement to fix cooling system issues.
Fitment Notes
- Compatible with select Chevrolet models from 1952 to 1962
- Compatible with select GMC models from 1954 to 1962
- Replaces General Motors part number 3835121 and Navistar 63556R1
Why Choose Dorman - Autograde?
- Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function
- Built with quality materials and validated through testing to stand up to daily driving demands
- Offers a smart way to restore your vehicle with confidence in fit and durability
What's in the Box
- 10 Piece Set of Engine Expansion Plugs
Item Dimensions
- Length: 3.2 inches
- Width: 2.4 inches
- Height: 1.5 inches
- Weight: 0.8 lbs
