KYB SM5554 Suspension Coil Spring Seat - Front Upper

KYB SM5554 Suspension Coil Spring Seat

KYB SM5554 is a suspension coil spring seat for front upper applications on select Mercury Villager and Nissan Quest models. It is built as an OE-quality replacement to help restore proper spring support while reducing vibration, squeaks, and rattles from worn insulators.

Part number SM5554 is part of KYB Mount Components, a product line focused on replacement suspension mounting parts that match application-specific requirements. For drivers servicing a Mercury Villager or Nissan Quest front upper spring seat, this KYB component is designed to address noise and ride-quality issues caused by aging suspension insulators.

Key Features

• OE-quality replacement spring seat for the correct application
• Helps reduce squeaks, rattles, and vibration noise
• Built to match or exceed original equipment design and quality
• Supports proper suspension performance at the front upper mount location
• Cross-references Monroe Shocks & Struts 905921 for the same application

Detailed Description

KYB SM5554 is engineered for front upper suspension use on 1993-2002 Mercury Villager and 1993-2002 Nissan Quest models. As a replacement spring seat, it helps maintain the correct interface between suspension components and the coil spring, which is important when original insulators have hardened, cracked, or lost their ability to isolate vibration. The result is a more controlled suspension feel with less unwanted noise from the mount area.

This part number, SM5554, is a direct-fit style replacement for the listed vehicles and is suited to owners addressing front-end suspension noise or restoring worn mount components on a Mercury Villager or Nissan Quest.

What It Helps Fix

• Squeaks from worn spring seat material
• Rattles coming from the front upper suspension area
• Vibration noise transferred through hardened insulators
• Loss of proper spring support at the mount point
• Ride-quality issues related to deteriorated suspension mounting parts

Installation Notes and Tips

Fits 1993-2002 Mercury Villager, Front Upper. Fits 1993-2002 Nissan Quest, Front Upper. Confirm the vehicle’s suspension configuration before installation and inspect adjacent mount components for wear while servicing the spring seat. Because this part is used in the front upper suspension area, proper alignment of the spring and mount surfaces is important during assembly.

Quality Assurance

KYB positions this Mount Components part as an OE-quality replacement built for application-specific fit and function. The design focus is on restoring the original suspension interface and reducing noise caused by aged vibration insulators.