HomeSuspension > Suspension, Springs and Related ComponentsKYB SM5594 Coil Spring Insulator - Rear Upper
Part #: SM5594

KYB SM5594 Coil Spring Insulator - Rear Upper

Mount Components, Rear Upper
⚙️ 9 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$11.33Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Mount Components, Rear Upper
🚗Fitment: Nissan, Altima
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Coil Spring Insulator for Nissan Altima

The KYB SM5594 coil spring insulator is designed specifically for Nissan Altima models, providing essential cushioning between the coil spring and suspension components. This part helps reduce noise and vibration, contributing to a smoother ride and improved suspension performance.

  • Compatible with Nissan Altima suspension systems
  • Part number SM5594 for precise identification
  • Manufactured by KYB, a trusted brand in suspension components
  • Part of the Mount Components product line
  • Durable material designed to withstand suspension stress

About the KYB Mount Components Product Line

The Mount Components line from KYB focuses on suspension parts that support and isolate key suspension elements. This coil spring insulator is engineered to fit seamlessly within the Nissan Altima’s suspension assembly, ensuring proper alignment and reducing wear on coil springs and mounts. The Mount Components series is designed to maintain suspension integrity and enhance vehicle handling.

Product Details and Functionality

The SM5594 coil spring insulator acts as a buffer between the coil spring and the vehicle’s suspension mounts. By absorbing shocks and vibrations, it minimizes metal-to-metal contact, which can cause noise and premature wear. This insulator is tailored for Nissan Altima models, ensuring a precise fit and reliable performance. Using the correct coil spring insulator helps maintain suspension geometry and contributes to consistent ride quality.

Common Suspension Issues Addressed

  • Reduces suspension noise caused by coil spring contact
  • Prevents premature wear of coil springs and mounts
  • Improves ride comfort by dampening vibrations
  • Maintains proper suspension alignment
  • Helps avoid suspension component damage from metal-on-metal contact

Installation Notes and Tips

When replacing the coil spring insulator on a Nissan Altima, ensure the suspension is safely supported and the coil spring is properly compressed. Verify the orientation of the insulator matches the original part to maintain correct fitment. Using the KYB SM5594 part number will help confirm compatibility during installation.

Quality Assurance and Warranty

KYB manufactures the SM5594 coil spring insulator to meet OEM standards for durability and performance. While specific warranty details are not provided, KYB products typically undergo rigorous quality control to ensure reliability in suspension applications.

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
2001NissanAltimaRear UpperMount Components
2000NissanAltimaRear UpperMount Components
1999NissanAltimaRear UpperMount Components
1998NissanAltimaRear UpperMount Components
1997NissanAltimaRear UpperMount Components
1996NissanAltimaRear UpperMount Components
1995NissanAltimaRear UpperMount Components
1994NissanAltimaRear UpperMount Components
1993NissanAltimaRear UpperMount Components

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

550340E000550342B500

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.