---
product_id: 270712870
title: "Dorman 603-100 Front Engine Coolant Reservoir Compatible with Select Cadillac/Chevrolet/GMC Models"
brand: "dorman"
price: "B/.279"
currency: PAB
in_stock: true
reviews_count: 5
category: "Dorman"
url: https://www.desertcart.com.pa/products/270712870-dorman-603-100-front-engine-coolant-reservoir-compatible-with-select
store_origin: PA
region: Panama
---

# Heat & vibration resistant Direct OEM fit & function Easy, seamless installation Dorman 603-100 Front Engine Coolant Reservoir Compatible with Select Cadillac/Chevrolet/GMC Models

**Brand:** dorman
**Price:** B/.279
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your engine cool and your ride flawless with Dorman precision! ⚙️

## Quick Answers

- **What is this?** Dorman 603-100 Front Engine Coolant Reservoir Compatible with Select Cadillac/Chevrolet/GMC Models by dorman
- **How much does it cost?** B/.279 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/270712870-dorman-603-100-front-engine-coolant-reservoir-compatible-with-select)

## 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 Dorman’s automotive aftermarket expertise for peace of mind.
- • **Built to Endure:** Crafted from premium plastic designed to withstand intense underhood heat and vibration.
- • **Effortless Upgrade:** Seamless installation engineered to save you time and avoid costly shop visits.
- • **Precision OEM Match:** Engineered to perfectly replicate original fit and function for hassle-free replacement.
- • **Perfect Fit Guarantee:** Use our garage tool to confirm exact compatibility with your Cadillac, Chevrolet, or GMC model.

## Overview

The Dorman 603-100 Front Engine Coolant Reservoir is a direct replacement part designed for select Cadillac, Chevrolet, and GMC vehicles. Manufactured from durable plastic, it withstands underhood heat and vibration while ensuring a perfect OEM fit. Backed by a century of aftermarket expertise, this reservoir guarantees seamless installation and reliable performance to keep your engine running smoothly.

## 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: Dorman Doesn't Disappoint - Needed to replace the original coolant reservoir on my 1998 OBS Silverado. This was a perfect replacement part. Quality, fitment, price and easy install!!
Review: Se mira estupendo - Idéntico al original , encaja perfecto

## 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 |
|---------------|-------|
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | FLUID RESERVOIR |
| Product Dimensions | 29.21 x 22.23 x 17.78 cm; 680.39 g |
| Item model number | 603-100 |
| Exterior | Machined |
| Manufacturer Part Number | 603-100 |
| OEM Part Number | 650373; DAKG-650373; FRT1203C; RC77; SK603100; 15630112; 15650373 |
| Position | Front |
| Item Weight | 680 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 centimeters
- **Exterior finish:** Machined

## Images

![Dorman 603-100 Front Engine Coolant Reservoir Compatible with Select Cadillac/Chevrolet/GMC Models - Image 1](https://m.media-amazon.com/images/I/61xkHSaknhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Dorman Doesn't Disappoint
*by J***E on 17 September 2023*

Needed to replace the original coolant reservoir on my 1998 OBS Silverado. This was a perfect replacement part. Quality, fitment, price and easy install!!

### ⭐⭐⭐⭐⭐ 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

## 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.pa/products/270712870-dorman-603-100-front-engine-coolant-reservoir-compatible-with-select](https://www.desertcart.com.pa/products/270712870-dorman-603-100-front-engine-coolant-reservoir-compatible-with-select)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-24*