Nissens 996177 Engine Coolant Reservoir

Engine Coolant Reservoir for Volvo Cooling Systems

This Nissens engine coolant reservoir is built for Volvo cooling system service where a pressurized expansion tank with integrated level sensor is required. Nissens 996177 is a 1.0L plastic reservoir supplied with a cap and engineered for direct replacement use on select Volvo S60, XC70, XC90, V70, C70, S80, and S70 applications.

Key Features

• Plastic coolant reservoir construction
• Pressurized design for modern cooling systems
• 1.0L capacity
• Cap included
• Level sensor included
• OE-style replacement for select Volvo models
• Part number: 996177

Fitment

• Fits 2005-2009 Volvo S60, N/A
• Fits 2001-2003 Volvo S60, N/A
• Fits 2003-2007 Volvo XC70, N/A
• Fits 2003-2006 Volvo XC90, N/A
• Fits 2005 Volvo V70, N/A
• Fits 1999-2003 Volvo V70, N/A
• Fits 1999-2004 Volvo C70, N/A
• Fits 1999-2001 Volvo S80, N/A
• Fits 1999-2000 Volvo S70, N/A

Detailed Description

Nissens 996177 is an engine coolant reservoir developed for Volvo vehicles that use a pressurized expansion tank with a level sensor. The plastic tank construction supports routine cooling system replacement on Volvo S60, XC70, XC90, V70, C70, S80, and S70 models, while the included cap helps complete the service. This reservoir is a practical choice when replacing a cracked tank, a leaking seam, or a failed sensor-equipped coolant bottle on Volvo cooling systems.

Nissens focuses on thermal and engine efficiency components, and this reservoir reflects that approach with application-specific fitment and the features needed for proper coolant expansion and monitoring. Part number 996177 is also a useful reference when searching for a direct replacement coolant reservoir for Volvo S60 and Volvo XC90 cooling system repairs.

This part cross-references Monroe Shocks & Struts (e.g., 603637, CRT206000S) for the same application.

Common Repair Reasons

• Cracked or brittle coolant reservoir housing
• Coolant leaks from the tank or seams
• Faulty level sensor warning on the dash
• Damaged or missing reservoir cap
• Loss of coolant from a pressurized expansion tank

Installation Notes and Tips

Verify the reservoir shape, sensor connection, and hose routing against the original part before installation. Inspect the cap seal, coolant hoses, and mounting points during replacement, and refill the system with the correct coolant specification for the vehicle. After installation, bleed the cooling system according to Volvo service procedures to remove trapped air and confirm stable coolant level readings.

Quality Assurance

Nissens develops and manufactures thermal management components to consistent quality standards, and this coolant reservoir is part of that OE-style replacement range. The design includes the cap and level sensor required for the listed Volvo applications, supporting a straightforward cooling system repair.