Monroe 903978 Suspension Coil Spring Seat - Front Upper

Monroe Strut-Mate Spring Seat for Volvo Front Upper

The Monroe Strut-Mate Strut Coil Spring Seat, part number 903978, is a front upper suspension component for select Volvo applications. It is built to complement Monroe struts by helping reduce noise and vibration at the strut mount area.

Key Features

• Contents: spring seat
• Front upper suspension placement
• Designed for use with Monroe Strut-Mate mounting kit applications
• Supports quieter, smoother strut operation
• Part number 903978

Product Details

Monroe Strut-Mate is Monroe’s mounting-kit product line for strut service, created to work alongside replacement struts and springs. This spring seat is made for Volvo front upper suspension service where the original seat has worn, cracked, or lost its ability to isolate road noise and vibration. It is a direct-fit service part for select Volvo S60, V70, XC70, S80, C70, S70, and 850 models, including applications such as Fits 2001-2009 Volvo S60, front upper and Fits 2000-2007 Volvo V70, front upper. This part cross-references Monroe Shocks & Struts (e.g., SM5351, K90229) for the same application.

Common Reasons for Replacement

• Front suspension noise from a worn spring seat
• Vibration transferred through the strut assembly
• Uneven or degraded upper spring support
• Service work during strut or spring replacement
• Restoring proper front upper suspension function on Volvo models

Installation Notes

Install during strut or spring service, especially when replacing conventional struts or springs. Verify vehicle configuration before ordering, since fitment varies by model and suspension package. Compatible applications include Fits 2003-2007 Volvo XC70, front upper with Electronic Suspension and Fits 1999-2006 Volvo S80, front upper without Four-C Adaptive Suspension.

Quality Assurance

Monroe designs Strut-Mate components to complement Monroe ride control parts and to support reduced noise and vibration in the suspension system. Confirm fitment by year, model, position, and suspension notes before installation.