Dorman 603-832 Engine Coolant Reservoir

Engine Coolant Reservoir for Ram ProMaster

This Dorman engine coolant reservoir is a direct replacement for select Ram ProMaster 1500, ProMaster 2500, and ProMaster 3500 vans from 2014-2021. Built from clear plastic with a 1 L capacity, it matches the original part’s fit and function for dependable coolant expansion and recovery.

Key Features

• Direct replacement coolant reservoir for Ram ProMaster 1500, 2500, and 3500 applications
• Clear plastic construction for easy visual coolant level checks
• Pressurized design with a spring-loaded twist cap rated to 20.3 psi
• Includes mounting brackets and cap for a complete reservoir assembly
• Engineered to match original fit and function
• Part number 603-832 for easy identification and ordering

Detailed Description

Dorman 603-832 is a replacement engine coolant reservoir designed for 2014-2021 Ram ProMaster 1500, 2014-2021 Ram ProMaster 2500, and 2014-2021 Ram ProMaster 3500 models. The reservoir is manufactured from quality materials to handle underhood heat and engine vibration, while the irregular shape and 3 mounting holes support OE-style placement. This part cross-references Mopar 52014880AA for the same application.

The clear plastic body helps with routine coolant inspection, and the included spring-loaded twist cap is pressurized for proper system operation. If you are replacing a cracked, leaking, or discolored coolant tank on a Ram ProMaster van, part number 603-832 provides a direct-fit solution built around the original reservoir layout.

Common Problems This Part Can Address

• Coolant loss from a cracked or split reservoir
• Visible coolant contamination or discoloration in the tank
• Leaking cap or pressure retention issues
• Broken mounting points or reservoir movement from vibration
• Difficulty maintaining proper coolant level in the expansion tank

Installation Notes and Tips

Before installation, verify the reservoir shape, mounting hole layout, and cap style against the original unit on your Ram ProMaster. Transfer any reusable hoses or fittings from the vehicle as needed, and inspect the cooling system for leaks, hardened hoses, or pressure-related damage before returning the van to service. After installation, fill and bleed the cooling system according to the vehicle service procedure.

Quality Assurance

Dorman manufactures this coolant reservoir as an OE-style replacement engineered to match original fit and function. The reservoir is built from materials selected to withstand heat and vibration in the engine bay, supporting reliable service on Ram ProMaster 1500, ProMaster 2500, and ProMaster 3500 models.