KYB SR4157 Suspension Strut and Coil Spring Assembly - Front Left

KYB Strut-Plus SR4157 Front Left

The KYB Strut-Plus SR4157 is a front left suspension strut and coil spring assembly for 2002-2006 Nissan Sentra models. It is built to restore ride height, steering response, and suspension control with an OE-style, preassembled design.

KYB’s Strut-Plus line combines a KYB Excel-G strut with application-specific damping and a high-carbon steel coil spring, giving this assembly the correct side-specific layout for the vehicle as engineered. This part cross-references Monroe Shocks & Struts (e.g., 172106, 181369) for the same application.

Key Features

• Fits 2002-2006 Nissan Sentra, front left
• OE-style replacement for Asian vehicles
• Includes a KYB Excel-G strut with precision-designed damping valves
• High-carbon steel coil spring helps restore OE ride height
• Stronger steel outer shell for added assembly strength
• Exact-fit, preassembled design for professional results
• Side-specific construction matches the vehicle manufacturer’s layout
• Engineered to work with electronic safety systems such as ESC and ABS
• Assembled in the USA
• Recipient of a 2018 import aftermarket industry award

Detailed Description

The KYB Strut-Plus SR4157 is engineered for the front left corner of the 2002-2006 Nissan Sentra. As a suspension strut and coil spring assembly, it supports vehicle weight, helps set ride height, and serves as part of the steering and stability system. The Strut-Plus design uses KYB’s OE-restoring strut technology with a matched spring rate to help return the vehicle to factory-style suspension geometry and handling balance. The SR4157 is also built with side-specific components, which matters on vehicles where left and right assemblies are not interchangeable.

Common Issues This Part Addresses

• Front-end sag or uneven ride height
• Loose, unstable, or imprecise steering feel
• Excessive bounce or reduced damping control
• Noisy or worn suspension strut assembly
• Restoration needs after replacing a worn front left strut on a Nissan Sentra

Installation Notes and Tips

Fits 2002-2006 Nissan Sentra, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Because this is a preassembled Strut-Plus unit, it is intended to simplify installation while preserving the correct side-specific configuration. Verify vehicle trim and suspension layout before installation, and confirm alignment after replacement.

Quality Assurance

KYB is an original equipment supplier, and the Strut-Plus line is built around OE-style fitment and application-specific damping. The SR4157 is assembled in the USA and engineered to support vehicles equipped with electronic safety systems such as ESC and ABS.