Autotecnica DG0718878 Engine Coolant Reservoir

Engine Coolant Reservoir for Ram ProMaster

This Autotecnica engine coolant reservoir is a direct replacement for select Ram ProMaster vans that use a pressurized cooling system. Built from plastic (PP) and supplied with a twist-on cap rated to 18 psi, it supports proper coolant expansion and recovery in daily driving and service use.

• Engine coolant reservoir for select 2014-2022 Ram ProMaster 1500, 2014-2021 Ram ProMaster 2500, and 2014-2022 Ram ProMaster 3500
• Autotecnica part number DG0718878
• Pressurized design with 18 psi cap rating
• Twist-on cap included
• Plastic (PP) construction
• Mounting hole quantity: 3
• Dimensions: 11.36 in H x 8.67 in L x 8.18 in W

Replacement Reservoir Details

Autotecnica DG0718878 is built for Ram ProMaster cooling system service where the original reservoir has cracked, leaked, or no longer holds pressure. The reservoir measures 288 mm high, 220 mm long, and 208 mm wide, and it uses a twist-on cap style for secure sealing. This part cross-references Dorman - OE Solutions 603-832 for the same application. It also cross-references OE numbers 68135098AA and 68169277AA.

Common Cooling System Issues

• Coolant loss from a cracked or aging reservoir
• Pressure loss caused by a damaged tank or cap seal
• Visible coolant staining around the expansion tank area
• Low coolant warnings tied to reservoir failure
• Overheating concerns related to unstable coolant level control

Installation Notes

Verify the reservoir shape, mounting points, and cap style against the original unit before installation. This reservoir uses 3 mounting holes and does not include mounting hardware. Transfer any vehicle-specific connections or sensors only if they are present on the original system; this unit is listed without a level sensor.

Quality Assurance

Autotecnica manufactures aftermarket replacement parts to ISO/TS 16949 QMS specifications for Asian and North American vehicles. DG0718878 is a practical OE-style replacement for Ram ProMaster cooling system repair, including 2014-2022 Ram ProMaster 1500, 2014-2021 Ram ProMaster 2500, and 2014-2022 Ram ProMaster 3500 applications.