Smooth out a bouncy, unsettled ride and help restore steering response with the KYB shock absorber, MPN 3440021 — a rear Excel-G gas shock that installs as 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.
Part of KYB's Excel-G line, this KYB gas shock absorber is a nitrogen gas-charged, twin-tube unit built on the same KYB OE assembly lines, using the same OE-quality components and calibrated to restore original, designed performance rather than change it — the reason Excel-G carries KYB's OEA (Original Equipment for the Aftermarket) classification.
- Nitrogen gas-charged twin-tube design: the KYB gas shock absorber Excel-G construction includes every quality component found in KYB's OEM products.
- Triple lip fluid seal: reduces the chance of oil and gas leaking out.
- Vehicle-specific damping valves: hand assembled in-house to manage tire contact, steering response and body movement.
Signs a rear shock may need replacing include excessive bounce, a floaty ride, and reduced stability during braking or lane changes. If the original rear shock is worn, this Excel-G unit replaces it.
Interchange: 553111D010 · 553112G100 · 553112G300 · 553112G630 · 5615
This part cross-references / interchanges with the following part numbers:
553111D010, 553112G100, 553112G300, 553112G630, 5615
