KYB SM5551 Coil Spring Insulator - Rear
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KYB
 Mount Components

KYB SM5551 Coil Spring Insulator - Rear

Brand KYB SM5551
Position Rear
Product line Mount Components
Fits Ford and Mercury · 20 vehicles

OE quality replacement. Designed to match or exceed original equipment.

Noise reduction. Helps eliminate squeaks, rattles, and vibration noise.

Spring insulator. Restores proper suspension support and isolation.

Cross-references Monroe Shocks & Struts 905964 for the same application. See all 1.

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KYB SM5551 Coil Spring Insulator

Restore quieter suspension operation with the KYB SM5551 coil spring insulator. This Mount Components part is built to replace worn rear spring insulators that can harden over time and transmit vibration, squeaks, and rattles into the cabin.

Compatible with rear suspension applications on 1996-2005 Ford Taurus and 1996-2005 Mercury Sable, this OE-style replacement is designed for direct service on the spring seat and insulator location.

Key Features

  • High-quality replacement spring insulator for suspension service
  • Reduces squeaks, rattles, and vibration noise from aged insulators
  • Built to match or exceed original equipment design and quality
  • Part number SM5551 for accurate ordering and fitment lookup
  • Fits rear suspension applications on Ford Taurus and Mercury Sable

Product Details

KYB Mount Components are engineered as OE-quality replacement parts for suspension service. The SM5551 coil spring insulator is made to replace hardened or deteriorated insulators that can affect ride comfort and create unwanted noise at the spring seat. For drivers servicing a 1996-2005 Ford Taurus or 1996-2005 Mercury Sable, KYB SM5551 provides a direct-fit solution for rear suspension maintenance. This part cross-references Monroe Shocks & Struts 905964 for the same application.

Common Issues This Part Addresses

  • Rear suspension squeaks during bumps or body movement
  • Rattling or clunking from worn spring seat insulation
  • Vibration transfer caused by hardened rubber components
  • Noise from deteriorated rear coil spring contact points
  • Loss of original suspension isolation at the spring mount

Installation Notes and Tips

Inspect the rear spring seat, insulator surfaces, and surrounding mount components before installation. Replace worn or cracked related suspension parts at the same time to maintain consistent noise isolation. Verify year, make, model, and rear position before ordering the KYB SM5551.

Quality Assurance

KYB states that its Mount Components line is built to OE-quality standards and is designed for each specific application. The SM5551 is intended to deliver the design and material quality expected for suspension service on Ford Taurus and Mercury Sable rear applications.

Related reading

This part fits 20 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypePositionNotes
2005FordTaurusWagonRearUpper and Lower; Mount Components
2005MercurySableWagonRearUpper and Lower; Mount Components
2004FordTaurusWagonRearUpper and Lower; Mount Components
2004MercurySableWagonRearUpper and Lower; Mount Components
2003FordTaurusWagonRearUpper and Lower; Mount Components
2003MercurySableWagonRearUpper and Lower; Mount Components
2002FordTaurusWagonRearUpper and Lower; Mount Components
2002MercurySableWagonRearUpper and Lower; Mount Components
2001FordTaurusWagonRearUpper and Lower; Mount Components
2001MercurySableWagonRearUpper and Lower; Mount Components
2000FordTaurusWagonRearUpper and Lower; Mount Components
2000MercurySableWagonRearUpper and Lower; Mount Components
1999FordTaurusWagonRearUpper and Lower; Mount Components
1999MercurySableWagonRearUpper and Lower; Mount Components
1998FordTaurusWagonRearUpper and Lower; Mount Components
1998MercurySableWagonRearUpper and Lower; Mount Components
1997FordTaurusWagonRearUpper and Lower; Mount Components
1997MercurySableWagonRearUpper and Lower; Mount Components
1996FordTaurusWagonRearUpper and Lower; Mount Components
1996MercurySableWagonRearUpper and Lower; Mount Components
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Monroe Shocks & Struts — 905964