---
product_id: 1776615
title: "Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models"
price: "AR$224832"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/1776615-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible
store_origin: AR
region: Argentina
---

# Heat & vibration resistant Seamless direct replacement Exact OEM fit & function Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models

**Price:** AR$224832
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your ride’s cooling game with confidence!

## Quick Answers

- **What is this?** Dorman 603-100 Non-Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models
- **How much does it cost?** AR$224832 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/1776615-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible)

## Best For

- Customers looking for quality international products

## Why This Product

- 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 for peace of mind.
- • **Precision OEM Match:** Fits your Cadillac, Chevrolet, or GMC perfectly for hassle-free installation.
- • **Custom Fit Guarantee:** Use our garage tool to confirm compatibility with your exact make, model, and trim—no guesswork.
- • **Engineered for Endurance:** Built from premium plastic to resist underhood heat and vibration, ensuring long-lasting reliability.
- • **Ready for Personalization:** Exterior surface is paint-ready, letting you customize your engine bay’s look.

## Overview

The Dorman 603-100 Non-Pressurized Coolant Reservoir is a durable, direct replacement part designed to match the original fit and function for select Cadillac, Chevrolet, and GMC models. Constructed from high-quality plastic, it withstands engine heat and vibration, backed by a century of aftermarket expertise. Easy to install and paint-ready, it ensures your vehicle’s cooling system stays reliable and stylish.

## 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.

## Features

- Direct replacement - this engine coolant reservoir matches the fit and function of the original part.Material:Plastic
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000E300OE |
| Best Sellers Rank | #54,340 in Automotive ( See Top 100 in Automotive ) #53 in Automotive Reservoirs |
| Brand | Dorman |
| Customer Reviews | 4.7 4.7 out of 5 stars (960) |
| Date First Available | July 7, 2004 |
| Exterior | Ready To Paint If Needed |
| Item Weight | 1.5 pounds |
| 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 | 11.5 x 8.75 x 7 inches |

## Product Details

- **Brand:** Dorman
- **Material:** Plastic
- **Fit Type:** Vehicle Specific
- **Item dimensions L x W x H:** 11.5 x 8.75 x 7 inches
- **Exterior Finish:** Machined

## 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)

## 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

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**Shop now:** [https://www.desertcart.com.ar/products/1776615-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible](https://www.desertcart.com.ar/products/1776615-dorman-603-100-non-pressurized-coolant-reservoir-with-cap-compatible)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-09-24*