KYB 344491 Shock Absorber - Rear

KYB Excel-G Rear Shock for Infiniti G35

The KYB Excel-G 344491 is a rear suspension shock absorber for 2003-2006 Infiniti G35 models. It is built to restore original ride control, stability, braking response, and handling without changing the vehicle’s intended suspension behavior.

Made on KYB OE assembly lines, the Excel-G line uses OE-quality components and a nitrogen gas-charged twin-tube design. For Infiniti G35 rear shock replacement, 344491 is a direct-fit option for vehicles without sport suspension.

Key Features

• Fits 2003-2006 Infiniti G35, rear
• OE-style replacement for Asian performance vehicles
• Restores designed control and handling on the Infiniti G35
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement
• Supports proper operation of electronic safety systems by maintaining suspension behavior as engineered
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Part number 344491

Product Details

KYB Excel-G is KYB’s Original Equipment for the Aftermarket line, focused on returning the suspension to factory-style performance rather than altering ride characteristics. This rear shock absorber uses a twin-tube, nitrogen gas-charged design and OE-quality internal components to help maintain consistent damping on the road. For drivers searching for a rear shock absorber for 2003-2006 Infiniti G35, 344491 is built around the vehicle’s original suspension requirements.

This part cross-references Monroe Shocks & Struts 5631 for the same application.

What It Helps Address

• Excessive rear bounce or oscillation
• Loose or unstable handling during lane changes
• Reduced braking stability from worn rear shocks
• Uneven tire contact caused by weak damping
• Suspension noise or fluid leakage from a worn shock absorber

Installation Notes

Fits 2003-2006 Infiniti G35, rear. One fitment note specifies replacement of the suspension strut and coil spring assembly according to the manufacturer’s instructions; another applies to vehicles without sport suspension. Verify the vehicle’s suspension configuration before ordering. The lower mount type is special and the upper mount type is S1, so confirm mount style and dimensions against the original part. Compressed length is 14.21 in., extended length is 21.50 in., and stroke length is 7.29 in.

Quality Assurance

KYB is a major OE supplier of shocks and struts, and the Excel-G line is assembled on the same production lines used for OE applications. Part number 344491 is engineered to meet the original suspension design for the Infiniti G35 rear position.