KYB SM5128 Suspension Strut Mount Bearing - Front

KYB SM5128 Strut Mount Bearing

KYB SM5128 is a front suspension strut mount bearing built for OE-style replacement performance. It is designed to restore smooth steering response, maintain front-end alignment, and support the steering pivot function at the top of the strut assembly.

Compatible with select Mitsubishi Outlander, Volvo S40, Nissan Sentra, Nissan 200SX, Nissan Pulsar NX, and Nissan Pulsar front applications, this KYB Mount Components part is a direct-fit service item for vehicles that need precise suspension support. The SM5128 part number is also referenced in the aftermarket under Gabriel 143088 for the same application.

Key Features

• OE-quality replacement strut bearing for front suspension service
• Helps deliver smoother steering feel and front-end alignment retention
• Built to match or exceed original equipment design and quality targets
• Supports the steering pivot point at the top of the strut assembly
• KYB Mount Components product line focused on suspension mounting hardware

Detailed Description

KYB Mount Components are engineered as application-specific suspension replacement parts, and the SM5128 strut mount bearing follows that approach with a design intended to restore the function of the front bearing plate. On vehicles such as the 2003-2006 Mitsubishi Outlander, 2000 Volvo S40, and 1991-1999 Nissan Sentra, the bearing plays a direct role in steering movement and wheel alignment stability. The KYB SM5128 helps return the suspension to proper operation when the original bearing is worn, noisy, or binding.

This part number, SM5128, is a practical choice for front suspension repair on older Nissan and Mitsubishi platforms where steering precision matters. It is also listed for 1982-1986 Nissan Sentra, 1995-1998 Nissan 200SX, 1983-1990 Nissan Pulsar NX, and 1983 Nissan Pulsar front applications.

What It Helps Address

• Steering bind or rough steering feel from a worn strut bearing
• Front-end alignment drift caused by degraded mount bearing function
• Noise at the top of the strut during steering input
• Uneven steering response in front suspension service repairs
• Wear-related loss of smooth pivot action in the strut mount area

Installation Notes and Tips

Install the bearing in the front strut mount position only for the listed applications. Verify year, make, model, and front suspension configuration before ordering, especially on Nissan Sentra, Nissan 200SX, and Mitsubishi Outlander fitments. Because this component affects steering pivot and alignment, professional installation and a post-repair alignment check are recommended after suspension service.

Quality Assurance

KYB positions this Mount Components part as an OE-quality replacement built for application-specific fit and function. The SM5128 is engineered to meet the demands of front suspension steering support and alignment control in the listed vehicles.