KYB 343129 Shock Absorber - Front

KYB Excel-G Front Shock Absorber

KYB Excel-G part number 343129 is a front suspension shock absorber built to restore original ride control, stability, and steering response. It is a direct-fit OE-style replacement for classic GM applications, including Buick Skyhawk, Chevrolet Monza, Oldsmobile Starfire, and Pontiac Sunbird models.

The Excel-G line is KYB’s OEA replacement series, produced on the same assembly lines used for OE supply and calibrated to return the vehicle to its designed handling characteristics. For drivers searching for a front shock absorber for 1975-1980 Buick Skyhawk or a KYB 343129 replacement for 1976-1980 Pontiac Sunbird, this part is built around factory-style performance rather than changing the suspension feel.

Key Features

• KYB recommended OEM replacement shock for classic domestic cars
• Restores designed control and handling for GM car applications
• 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
• Supports proper operation of electronic safety systems by preserving suspension behavior as engineered
• R-stop included

Product Details

KYB Excel-G 343129 is engineered for front suspension use with a compressed length of 8.19 inches, extended length of 12.13 inches, and stroke length of 3.94 inches. Mounting details include lower mount type E3(51.6X72X10) and upper mount type S1. This shock absorber is designed for 1975-1980 Buick Skyhawk, 1975-1980 Chevrolet Monza, 1975-1980 Oldsmobile Starfire, and 1976-1980 Pontiac Sunbird front applications. This part cross-references Monroe Shocks & Struts 5821 for the same application.

What It Helps Address

• Excessive front-end bounce after bumps
• Loose or delayed steering response
• Reduced lane-change stability
• Uneven tire contact caused by worn damping
• Suspension noise or fluid leakage from an aging shock absorber

Installation Notes

Install on the front position only and follow the vehicle manufacturer’s instructions. For the listed Buick Skyhawk, Chevrolet Monza, Oldsmobile Starfire, and Pontiac Sunbird applications, replace the suspension strut and coil spring assembly according to the service procedure. Verify mount style, compressed length, and extended length before installation to confirm proper suspension travel and fitment.

Quality Assurance

KYB is a major OE supplier, and the Excel-G line is built on OE production lines using OE-quality components to restore original performance characteristics. The design focuses on consistent damping, seal integrity, and structural rigidity for dependable front suspension service.