Restore front-left ride height and control with the KYB Strut-Plus Suspension Strut and Coil Spring Assembly SR4422, a pre-assembled front-left corner unit for the 2006-2010 Kia Magentis, 2006-2010 Kia Optima, and 2007-2012 Kia Rondo (see the Buyer's Guide tab for engine-level fitment). A strut assembly supports vehicle weight, sets ride height, serves as the steering pivot, and helps control vehicle stability. Built around an Original Equipment (OE) Restoring KYB strut, this unit is engineered to help restore your vehicle's original handling and control.
- Complete corner unit: combines a KYB Excel-G strut, mount, and coil spring, pre-assembled for a professional-quality install.
- Application-engineered spring: high-carbon steel coil spring developed for the vehicle's attributes and corner weights, designed to help keep ride height within OE specifications.
- Strut build: stronger steel outer shell with KYB's application-specific precision-designed damping valves.
- Safety-system aware: engineered to help vehicles equipped with electronic safety systems (ESC, ABS, etc.).
KYB is the #1 recommended OE replacement choice for Asian vehicles and a Best Overall Import Aftermarket Product winner. This is the front-left, side-specific unit; order the matching right-side assembly to complete the axle.
Interchange: 171136 · 181136
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this assembly include?
It is a complete front-left corner unit that combines a KYB Excel-G strut, the mount, and an application-engineered high-carbon steel coil spring, pre-assembled and ready to install.
Which vehicles does the SR4422 fit?
It is a direct-fit replacement for the 2006-2010 Kia Magentis, 2006-2010 Kia Optima, and 2007-2012 Kia Rondo. See the Buyer's Guide tab for engine-level fitment.
Is this the left or right side?
This is the front-left assembly. KYB uses left and right part numbers with side-specific design, so order the matching right-side unit to complete the axle.
Do I need to replace both sides?
Replacing struts as a matched pair is a common best practice for balanced handling and ride height. This listing is for the front-left unit only.
Will it work with my vehicle's electronic safety systems?
Yes. This Strut-Plus unit is engineered to help vehicles equipped with electronic safety systems such as ESC and ABS.