HomeSuspension > Suspension, Springs and Related ComponentsKYB SM5559 Suspension Coil Spring Seat - Front Upper
Part #: SM5559

KYB SM5559 Suspension Coil Spring Seat - Front Upper

Mount Components, Front Upper
9 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$30.48Free 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, Front Upper
Fitment: Nissan, Sentra and 200SX
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Suspension Coil Spring Seat for Nissan 200SX and Sentra

The KYB SM5559 Suspension Coil Spring Seat is designed specifically for Nissan 200SX and Sentra models. This component plays a critical role in maintaining proper suspension alignment and ride quality by securely supporting the coil spring assembly.

  • Compatible with Nissan 200SX and Sentra vehicles
  • Part number SM5559 for precise identification
  • Suspension coil spring seat designed to support spring load and reduce noise
  • Manufactured by KYB, a trusted brand in suspension components
  • Part of the Mount Components product line, ensuring proper fit and durability

About the KYB Mount Components Product Line

The Mount Components line by KYB focuses on suspension parts that provide secure mounting and support for springs and related components. This product line is engineered to meet OEM specifications, ensuring compatibility and reliable performance for vehicles like the Nissan 200SX and Sentra. The SM5559 coil spring seat is part of this line, offering a durable solution for suspension mounting needs.

Product Details and Functionality

The SM5559 suspension coil spring seat is a critical part that supports the coil spring in the suspension system. It helps maintain proper spring positioning and absorbs vibrations, contributing to a smoother ride and improved handling. Designed for Nissan 200SX and Sentra models, this coil spring seat ensures that the suspension system operates as intended by the manufacturer.

Common Issues Addressed by the SM5559 Coil Spring Seat

  • Eliminates coil spring misalignment and shifting
  • Reduces suspension noise caused by worn or damaged spring seats
  • Prevents premature wear of suspension components
  • Improves ride comfort by maintaining proper spring support
  • Helps restore original suspension geometry

Installation Notes and Tips

Installation of the KYB SM5559 coil spring seat should be performed by a qualified technician familiar with Nissan 200SX and Sentra suspension systems. Ensure the vehicle is securely lifted and the suspension is properly supported before removing old components. Inspect the coil spring and related parts for wear or damage during installation. Proper torque specifications should be followed to maintain safety and performance.

Quality Assurance and Warranty

KYB manufactures the SM5559 coil spring seat to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details are not provided here, KYB products typically come with a limited warranty against defects in materials and workmanship. Refer to KYB’s official documentation for complete warranty information.

This part fits 9 vehicles. Search below:

YearMakeModelPositionNotes
1999NissanSentraFront Upper(B14); w/ Insulator; Mount Components
1998Nissan200SXFront UpperFront suspension strut mount bracket; Mount Components
1998NissanSentraFront Upper(B14); w/ Insulator; Mount Components
1997Nissan200SXFront UpperFront suspension strut mount bracket; Mount Components
1997NissanSentraFront Upper(B14); w/ Insulator; Mount Components
1996Nissan200SXFront UpperFront suspension strut mount bracket; Mount Components
1996NissanSentraFront Upper(B14); w/ Insulator; Mount Components
1995Nissan200SXFront UpperFront suspension strut mount bracket; Mount Components
1995NissanSentraFront Upper(B14); w/ Insulator; Mount 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:

540344B000540404B00055040F4200

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