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🔥 Keep your engine cool and your ride flawless with Dorman’s trusted reservoir!
The Dorman 603-100 Front Engine Coolant Reservoir is a direct replacement part engineered to match the original’s fit and function. Made from durable plastic, it withstands high underhood temperatures and engine vibrations. Compatible with select Cadillac, Chevrolet, and GMC models, it ensures seamless installation backed by a century of Dorman’s automotive expertise.





| ASIN | B000E300OE |
| Best Sellers Rank | #55,836 in Automotive ( See Top 100 in Automotive ) #77 in Car Styling Reservoirs |
| Brand | Dorman |
| Customer Reviews | 4.7 4.7 out of 5 stars (940) |
| Date First Available | 8 August 2012 |
| Exterior | Machined |
| Item Weight | 680 g |
| Item model number | 603-100 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 603-100 |
| Model | FLUID RESERVOIR |
| OEM Part Number | 650373; DAKG-650373; FRT1203C; RC77; SK603100; 15630112; 15650373 |
| Position | Front |
| Product Dimensions | 29.21 x 22.23 x 17.78 cm; 680.39 g |
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