KYB 441600 Suspension Shock Absorber - Rear

KYB Excel-G 441600 Shock Absorber

The KYB Excel-G 441600 is a nitrogen gas-charged, twin-tube suspension shock absorber built to restore original ride control, stability, stopping response, lane-change handling, and steering feel. It is an OE-style replacement for heavy duty trucks and commercial vehicles, with the same assembly-line approach KYB uses for original equipment production.

For buyers searching for a KYB shock absorber for heavy duty truck suspension repair, the Excel-G line focuses on returning the vehicle to its designed performance rather than changing ride characteristics. This part number 441600 is made in the USA and uses OE-quality components for consistent damping control.

Key Features

• KYB recommended OEM replacement shock for heavy duty trucks and commercial vehicles
• Restores designed control and handling
• 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
• Made in USA

Product Details

The Excel-G product line is KYB’s OE replacement series, built on the same KYB assembly lines used for original equipment applications. Part number 441600 uses a twin-tube, nitrogen gas-charged design with compressed length of 12.3, extended length of 18.7, and stroke length of 6.4. It features S1(5/8) upper and lower mounts, making it a direct-fit suspension shock absorber for applications that require precise damping and stable body control. This part cross-references Monroe Shocks & Struts 65420 for the same application.

What It Helps Address

• Excessive bounce after bumps or dips
• Loose or unstable steering response
• Reduced braking stability from worn suspension damping
• Body roll during lane changes or cornering
• Uneven tire contact caused by weak shock control

Installation Notes

Verify mount style, compressed length, extended length, and stroke before installation. Confirm the vehicle uses S1(5/8) upper and lower mounts and compare the original shock dimensions to KYB 441600. After replacement, inspect related suspension components and perform an alignment if the vehicle manufacturer specifies it.

Quality Assurance

KYB is a major OE supplier, and the Excel-G line is built to restore original designed performance using OE-quality components and OE-style calibration. The strong strut body and bracket construction helps reduce flex, supporting consistent suspension geometry and electronic safety system performance when the suspension, brakes, and tires are operating as intended.