--- product_id: 74032184 title: "Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models" brand: "dorman" price: "934.87 DT" currency: TND in_stock: true reviews_count: 5 category: "Dorman" url: https://www.desertcart.tn/products/74032184-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible store_origin: TN region: Tunisia --- # Heat-resistant durability Precision engineered fit Easy, seamless installation Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models **Brand:** dorman **Price:** 934.87 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your ride with confidence—because your engine deserves the best! ## Quick Answers - **What is this?** Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models by dorman - **How much does it cost?** 934.87 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/74032184-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible) ## Best For - dorman enthusiasts ## Why This Product - Trusted dorman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Legacy:** Backed by 100 years of automotive aftermarket expertise - • **Built to Endure:** Crafted from premium materials to resist underhood heat and vibration - • **Custom Fit Guarantee:** Input your vehicle’s make, model, and trim for perfect compatibility - • **Ready for Your Style:** Exterior surface is paint-ready to match your vehicle’s aesthetic - • **Engineered for Perfection:** Seamlessly replaces your original reservoir with exact fit and function ## Overview The Dorman 603-100 Fluid Reservoir is a high-quality replacement part designed to match the original equipment’s fit and function. Manufactured from durable materials to withstand engine heat and vibration, it ensures reliable performance and easy installation. With over a century of aftermarket expertise behind it, this reservoir offers a trusted, custom-fit solution for your vehicle’s cooling system. ## Description This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part. Review: Se mira estupendo - Idéntico al original , encaja perfecto Review: Coolant overflow tank - Perfect fit and just as advertised ## Features - 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 desertcart Garage - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000E300OE | | Brand | Dorman | | Customer Reviews | 4.7 4.7 out of 5 stars (913) | | Date First Available | 8 Aug. 2012 | | Exterior | Ready To Paint If Needed | | 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 | ## Product Details - **Brand:** Dorman - **Material:** Plastic - **Fit type:** Vehicle Specific - **Item dimensions L x W x H:** 29.2 x 22.2 x 17.8 centimetres - **Exterior finish:** Ready To Paint If Needed ## Images ![Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models - Image 1](https://m.media-amazon.com/images/I/61xkHSaknhL.jpg) ![Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models - Image 2](https://m.media-amazon.com/images/I/51B0m26J0RL.jpg) ![Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models - Image 3](https://m.media-amazon.com/images/I/91+ZwqnEC-L.jpg) ![Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models - Image 4](https://m.media-amazon.com/images/I/61DmLCn-0tL.jpg) ![Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac/Chevrolet/GMC Models - Image 5](https://m.media-amazon.com/images/I/51-N++dRBML.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Se mira estupendo *by H***T on 3 June 2025* Idéntico al original , encaja perfecto ### ⭐⭐⭐⭐⭐ Coolant overflow tank *by G***D on 9 May 2025* Perfect fit and just as advertised ### ⭐⭐⭐⭐⭐ Fitment and Quality spot on. *by B***. on 15 April 2026* Perfect fit. Was cheaper buying it here than locally from NAPA amd O'Reillys here in Hawaii. Saved me almost $30 dollars. Very happy with fitment and quality. ## Frequently Bought Together - Dorman 603-100 Front Engine Coolant Reservoir Compatible with Select Cadillac / Chevrolet / GMC Models - ACDelco GM Original Equipment RC27 15 P.S.I. Radiator Cap - ACDelco Professional 252-719 Water Pump Kit --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/74032184-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible](https://www.desertcart.tn/products/74032184-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-24*