KYB 343308 Shock Absorber - Rear

KYB Excel-G Rear Shock for Saturn Ion

The KYB Excel-G 343308 is a rear suspension shock absorber engineered to restore original ride control on the Saturn Ion. It is built as an OE-style replacement for drivers who want predictable handling, stable braking, and consistent lane-change response.

Fits 2003-2007 Saturn Ion, rear. This part cross-references Monroe Shocks & Struts (e.g., 5779) for the same application.

Key Features

• KYB recommended OEM replacement shock for the Saturn Ion
• Restores designed control and handling for rear suspension service
• Nitrogen gas-charged, twin-tube construction
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket design helps minimize flex and maintain alignment
• Dust cover included
• R-stop included

Product Details

KYB Excel-G is built on KYB OE assembly lines using OE-quality components and calibrated to return the suspension to its original performance profile rather than change it. For the Saturn Ion rear suspension, part number 343308 supports stable ride control, braking consistency, and suspension response that works with the vehicle’s electronic safety systems as designed. The rear shock uses a compressed length of 10.59, extended length of 15.94, and stroke length of 5.35, with E2 lower and upper mount types.

Fits 2003-2007 Saturn Ion, rear. Part number 343308 is a direct-fit OE-style replacement for rear shock service on this platform.

Common Issues This Shock Can Address

• Excessive bouncing after bumps or dips
• Loose or unstable rear-end feel during cornering
• Longer stopping distances caused by reduced tire contact
• Poor lane-change response or body movement control
• Uneven suspension damping from a worn rear shock absorber

Installation Notes and Tips

Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions for this application. Verify mount orientation, inspect surrounding suspension components, and confirm the rear shock dimensions and mount style before installation. For best results on the Saturn Ion, install part number 343308 as part of a complete rear suspension inspection.

Quality Assurance

KYB is a major OE supplier, and Excel-G is produced to OE standards on KYB assembly lines using quality components matched to original vehicle performance requirements. The 343308 rear shock is designed to maintain the control characteristics expected from the Saturn Ion suspension system.