---
product_id: 101307192
title: "Dorman 603-973 Front Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models"
brand: "dorman"
price: "$4045"
currency: MXN
in_stock: true
reviews_count: 10
category: "Dorman"
url: https://www.desertcart.mx/products/101307192-dorman-603-973-front-pressurized-coolant-reservoir-with-cap-compatible
store_origin: MX
region: Mexico
---

# Heat & vibration resistant Easy, seamless installation Direct OEM fit & function Dorman 603-973 Front Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models

**Brand:** dorman
**Price:** $4045
**Availability:** ✅ In Stock

## Summary

> 🚗 Keep your engine cool and your ride flawless — because your truck deserves the best!

## Quick Answers

- **What is this?** Dorman 603-973 Front Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models by dorman
- **How much does it cost?** $4045 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/101307192-dorman-603-973-front-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 Dorman’s automotive aftermarket expertise for peace of mind.
- • **Built to Endure:** Crafted from premium materials designed to withstand intense underhood heat and vibration.
- • **Guaranteed Fitment:** Use the garage tool to confirm exact compatibility with your Cadillac, Chevrolet, or GMC model.
- • **Precision OEM Replacement:** Engineered to match original fit and function perfectly, eliminating guesswork.
- • **Plug-and-Play Installation:** Seamless, hassle-free swap that saves you time and stress in the garage.

## Overview

The Dorman 603-973 Front Pressurized Coolant Reservoir is a direct replacement part designed for select Cadillac, Chevrolet, and GMC models from 2014 to 2019. Manufactured with durable materials to resist heat and vibration, it ensures reliable engine cooling performance. Backed by a century of aftermarket expertise, this reservoir offers a perfect OEM fit and easy installation, helping you maintain your vehicle’s peak condition with confidence.

## 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. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Cadillac Escalade ESV: 2015, 2016, 2017, 2018, 2019] - [Cadillac Escalade: 2015, 2016, 2017, 2018, 2019] - [Chevrolet Cheyenne: 2014, 2015, 2016, 2017, 2018] - [Chevrolet Silverado 1500 LD: 2019] - [Chevrolet Silverado 1500: 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Silverado 2500: 2014, 2015, 2016, 2017, 2018] - [Chevrolet Suburban 3500 HD: 2016, 2017, 2018, 2019] - [Chevrolet Suburban: 2015, 2016, 2017, 2018, 2019] - [Chevrolet Tahoe: 2015, 2016, 2017, 2018, 2019] - [GMC Sierra 1500 Limited: 2019] - [GMC Sierra 1500: 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Sierra: 2014, 2015, 2016, 2017, 2018] - [GMC Yukon XL: 2015, 2016, 2017, 2018, 2019] - [GMC Yukon: 2015, 2016, 2017, 2018, 2019]

Review: Great quality - Perfect fit
Review: Quality reservoir - Received item and appears to be factory item. Removed and installed with minimal issues and fitment was exactly like the old one. Ran for nearly half an hour with no apparent problems and no visible leaking. Dollar for dollar this is a good replacement item and it looks exactly like the old one too. Test will be in a few days to see if I need to add more coolant. Will update later. Pic is of the old one I replace. Leaking internally?? No visible damage but definitely leaking.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D8F4VHW |
| Best Sellers Rank | #37,633 in Automotive ( See Top 100 in Automotive ) #44 in Automotive Reservoirs |
| Brand | Dorman |
| Customer Reviews | 4.6 4.6 out of 5 stars (396) |
| Date First Available | May 23, 2018 |
| Exterior | Machined |
| Hollander Number | 671-00359 |
| Item Weight | 2.89 pounds |
| Item model number | 603-973 |
| Manufacturer | Dorman Products |
| Manufacturer Part Number | 603-973 |
| Model | 603-973 |
| OEM Part Number | 13502354; 22856231; 84368362 |
| Position | Center |
| Product Dimensions | 14.23 x 8.7 x 12.25 inches |

## Images

![Dorman 603-973 Front Pressurized Coolant Reservoir with Cap Compatible with Select Cadillac / Chevrolet / GMC Models - Image 1](https://m.media-amazon.com/images/I/813YsAJ9OnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great quality
*by C***N on January 10, 2026*

Perfect fit

### ⭐⭐⭐⭐⭐ Quality reservoir
*by R***. on April 5, 2025*

Received item and appears to be factory item. Removed and installed with minimal issues and fitment was exactly like the old one. Ran for nearly half an hour with no apparent problems and no visible leaking. Dollar for dollar this is a good replacement item and it looks exactly like the old one too. Test will be in a few days to see if I need to add more coolant. Will update later. Pic is of the old one I replace. Leaking internally?? No visible damage but definitely leaking.

### ⭐⭐⭐⭐⭐ Great quality
*by J***R on April 2, 2025*

This fit perfectly in my truck and has held up great

## Frequently Bought Together

- Dorman 603-973 Front Engine Coolant Reservoir Compatible with Select Cadillac / Chevrolet / GMC Models
- Zerex Dex-Cool Organic Acid Technology 50/50 Ready-to-Use Antifreeze/Coolant 1 GA

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**Shop now:** [https://www.desertcart.mx/products/101307192-dorman-603-973-front-pressurized-coolant-reservoir-with-cap-compatible](https://www.desertcart.mx/products/101307192-dorman-603-973-front-pressurized-coolant-reservoir-with-cap-compatible)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-20*