Dorman
Dorman 603-668 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Buick / Chevrolet / Pontiac Models
Dorman 603-668 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Buick / Chevrolet / Pontiac Models
SKU:RB-603-668
Low stock
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- Genuine brand-name parts
- Ships from US warehouse
- 30-day returns
The Dorman 603-668 is a non-pressurized coolant reservoir with cap. It is a new, genuine Dorman part with the manufacturer warranty, shipped from the closest US warehouse.
Key features
- Direct replacement - this engine coolant reservoir matches the fit and function of the original part
- Ideal solution - engineered for a seamless installation
- Durable construction - manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design - backed by 100 years of automotive aftermarket experience
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
Specifications
| Brand | Dorman |
|---|---|
| Manufacturer part number | 603-668 |
| Part type | Motor Engine Fuel Tank |
| UPC / GTIN | 885484606166 |
| Weight | 2.00 lb |
| Dimensions (L × W × H) | 13.6 × 12.8 × 4.7 in |
| Category | Engine & Drivetrain |
| Condition | New — genuine brand-name part |
| Warranty | Manufacturer warranty |
| Also searched as | 603 668, 603668 |
Questions
Will this fit my vehicle?
Match the manufacturer part number 603-668 to your current part, or send us your VIN and we will confirm the fit before you order.
How fast does it ship?
Orders ship from the closest US warehouse, normally within 1–3 business days, with tracking by e-mail.
Is this a genuine Dorman part?
Yes — new and genuine Dorman, with the manufacturer warranty.
Can I return it?
Yes. Unused items can be returned within 30 days — see our refund policy for the details.
Shipping & delivery
Shipping & delivery
Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.
Returns & warranty
Returns & warranty
Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.
Fitment & part numbers
Fitment & part numbers
Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.
