Nissens 996128 Engine Coolant Reservoir

Nissens 996128 Engine Coolant Reservoir

The Nissens 996128 engine coolant reservoir is a pressurized plastic expansion tank built for Audi cooling system service. It includes a cap, level sensor, and mounting bracket, making it a direct-fit style replacement for vehicles that need accurate coolant expansion and level monitoring.

Key Features

• Pressurized engine coolant reservoir for thermal system operation
• Plastic construction for OE-style fit and function
• Includes cap, level sensor, and mounting bracket
• 1.40L capacity
• Compatible with Audi A4, Audi A5, Audi allroad, and Audi Q5 applications
• Part number 996128 for easy identification

Product Details

Nissens develops thermal and engine efficiency components with a focus on consistent manufacturing quality and ongoing aftermarket coverage. This coolant reservoir is engineered for Audi cooling systems that require a pressurized expansion tank with integrated level sensing. It cross-references URO 8K0121403Q for the same application. The 996128 reservoir is a practical replacement for Audi A4, Audi A5, Audi allroad, and Audi Q5 models listed below, and it supports proper coolant expansion and reservoir-level monitoring in the engine bay.

Vehicle Fitment

• Fits 2009-2018 Audi A4, N/A
• Fits 2013-2018 Audi Q5, N/A
• Fits 2013-2016 Audi allroad, N/A
• Fits 2010-2014 Audi A5, N/A

Common Replacement Reasons

• Cracked or leaking coolant reservoir
• Faulty coolant level sensor warning
• Damaged cap or pressure retention issue
• Reservoir discoloration, warping, or age-related wear
• Cooling system service on Audi A4, A5, allroad, or Q5

Installation Notes

Verify the reservoir shape, sensor connection, and cap style against the original unit before installation. Transfer or connect the level sensor as required by the vehicle configuration, and inspect hoses, seals, and mounting points for wear before refilling and bleeding the cooling system. Confirm proper pressure retention after installation.

Quality Assurance

Nissens is a market-leading manufacturer of thermal and engine efficiency components, and its products are developed and manufactured to consistent quality standards for aftermarket use. Part number 996128 is built to support reliable cooling system service on the listed Audi applications.