KYB SR4596 Suspension Strut and Coil Spring Assembly - Front Right

KYB Strut-Plus SR4596 for Kia Optima

The KYB Strut-Plus SR4596 is a front right suspension strut and coil spring assembly for select Kia Optima models. Built around an OE-restoring KYB strut and a high carbon steel coil spring, it is engineered to return ride height, handling response, and steering control to factory-style specifications.

Key Features

• Part number SR4596 for front right suspension service
• Strut and coil spring assembly for direct replacement of the original front right unit
• OE-restoring KYB strut construction for factory-style ride and control
• High carbon steel coil spring matched to vehicle attributes and corner weights
• Boot included
• Compressed length: 13.66 in.
• Extended length: 20.62 in.
• Stroke length: 6.96 in.

Product Details

KYB Strut-Plus SR4596 is built for 2012 Kia Optima front right applications and 2013-2015 Kia Optima front right applications, including USA-built vehicles. As a suspension strut and coil spring assembly, it supports vehicle weight, helps set ride height, serves as a steering pivot, and contributes to stability. KYB’s OE supplier background is reflected in the way this assembly is configured to restore the handling and control characteristics expected from the original suspension design. The SR4596 part number is a direct reference for shoppers searching for a Kia Optima front right strut assembly replacement.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues Addressed

• Front-end sag or uneven ride height on a Kia Optima
• Worn strut performance that reduces steering precision
• Excessive body movement during braking, cornering, or lane changes
• Noisy or degraded front suspension operation from a worn assembly
• Loss of factory-style ride control after original suspension wear

Installation Notes and Tips

Verify front right fitment by year, build details, and application notes before installation. This assembly is listed for 2012 Kia Optima front right, from 11/30/2011, USA built, and 2013-2015 Kia Optima front right, USA built. Confirm that the replacement matches the original position and suspension configuration, and inspect related mounting points and surrounding wear items during service. Because this is a complete strut and spring assembly, it is suited to replacing the original front right unit without transferring the spring from the old strut.

Quality Assurance

KYB manufactures suspension components as an original equipment supplier, and the Strut-Plus line is engineered around OE-style ride height and control restoration. The SR4596 uses a high carbon steel spring selected around vehicle-specific corner weights and attributes to help return the suspension to factory specifications.