Motorad T75 Engine Coolant Reservoir Cap

Engine Coolant Reservoir Cap for Ram and Fiat

The Motorad Standard T75 engine coolant reservoir cap is built for vehicles that use a threaded, pressurized coolant tank cap with a 20 psi rating. It is designed for direct replacement service on select Ram ProMaster and Fiat 500L applications, including Ram ProMaster 1500, ProMaster 2500, ProMaster 3500, ProMaster City, and Fiat 500L models.

Motorad T75 is a standard-line coolant reservoir cap made from plastic with a round blue body, yellow indicator markings, and a pre-installed gasket or seal. The cap is vented, pressurized, and uses a female threaded attachment for a secure fit on the filler neck.

Key Features

• Engine coolant reservoir cap for select Ram and Fiat vehicles
• Threaded, female-thread design for proper tank engagement
• 20.0 maximum pressure rating for pressurized cooling systems
• Plastic construction with round shape and blue finish
• Vented design with indicator markings for service identification
• Pre-installed gasket or seal for replacement convenience
• Motorad Standard line replacement part number T75

Product Details

Motorad Standard focuses on OE-style replacement cooling system hardware, and the T75 follows that approach with dimensions and valve operation intended to match factory specifications. The cap measures 1.99 in. in diameter, 1.57 in. overall height, and 0.99 in. cap depth, with a 1.68 in. thread diameter and 1.04 in. filler neck inside diameter. It is built for pressurized coolant recovery systems that require controlled relief and vacuum operation.

This part cross-references Mopar 68097622AA for the same application. Use Motorad T75 when replacing a worn or damaged coolant reservoir cap on Ram ProMaster and Fiat 500L cooling systems.

Common Problems This Part Can Address

• Coolant loss from a cap that no longer seals correctly
• Pressure control issues in the coolant reservoir
• Vacuum valve problems after engine cool-down
• Cracked, worn, or damaged reservoir cap threads
• Service replacement for a missing or unreadable cap

Installation Notes and Tips

Verify the reservoir neck style, thread diameter, and pressure rating before installation. The cap installs by threading onto the coolant reservoir filler neck and should seat fully without cross-threading. Confirm that the sealing surface is clean and that the cap markings match the vehicle’s cooling system requirements. Fits 2014-2025 Ram ProMaster 1500, N/A; Fits 2014-2025 Ram ProMaster 2500, N/A; Fits 2014-2025 Ram ProMaster 3500, N/A; Fits 2015-2022 Ram ProMaster City, N/A; Fits 2014-2020 Fiat 500L, N/A.

Quality Assurance

Motorad manufactures this cap to meet OEM specifications and quality tests it for use in demanding automotive cooling systems. The design uses proper relief and vacuum valves to support normal coolant system operation.