KYB 345030 Shock Absorber - Front

KYB Excel-G Shock Absorber for Heavy Duty Trucks

KYB Excel-G part 345030 is a front suspension shock absorber built to restore original ride control, stability, stopping response, and handling. It is a direct OE-style replacement for heavy duty Chevrolet and GMC truck applications, including Chevrolet P30 and GMC P3500 front suspension setups.

Key Features

• Nitrogen gas-charged, twin-tube shock absorber design
• OE-quality components assembled on KYB OE production lines
• Calibrated to restore original suspension performance
• 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 construction helps minimize flex and maintain alignment
• Dust cover included
• R-stop technology included

Excel-G Product Line Details

The KYB Excel-G line is engineered as an Original Equipment for the Aftermarket replacement, meaning it is built to match the vehicle’s original damping characteristics rather than change them. For Chevrolet P30 and GMC P3500 front suspension service, KYB Excel-G 345030 is a practical choice when the goal is to return the chassis to factory-style control and predictable road feel.

Detailed Description

KYB 345030 is designed for front suspension service on heavy duty Chevrolet and GMC platforms with Monobeam front suspension or straight front axle leaf spring configurations listed in the fitment data. It is a front shock absorber for 1985-1999 Chevrolet P30, 1985-1999 GMC P3500, 1986-1999 GMC P3500 motorhome chassis, and 1993-1996 Chevrolet G30 and GMC G3500 heavy duty applications. This part cross-references Monroe Shocks & Struts 34912 for the same application.

What It Helps Address

• Excessive front-end bounce after bumps or dips
• Loose or delayed steering response
• Reduced body control during lane changes and braking
• Uneven tire contact caused by worn damping
• Suspension noise or fluid leakage from an aging shock absorber

Installation Notes and Fitment

• Fits 1985-1999 Chevrolet P30, front, recommended OEM replacement; w/ Monobeam front suspension; Excel-G
• Fits 1986-1999 GMC P3500, front, motorhome chassis with Monobeam front suspension; Excel-G
• Fits 1985-1999 GMC P3500, front, recommended OEM replacement; w/ Monobeam front suspension; Excel-G
• Fits 1993-1996 Chevrolet G30, front, recommended OEM replacement; exc. motorhome chassis; heavy duty w/ straight front axle (leaf spring)(P42, P62); Excel-G
• Fits 1993-1996 GMC G3500, front, recommended OEM replacement; exc. motorhome chassis; heavy duty w/ straight front axle (leaf spring)(P42, P62); Excel-G

Verify compressed length 14.17 in., extended length 22.83 in., and stroke length 8.66 in. before installation. Lower mount type is E2(19X45) and upper mount type is E1. Dust cover is included; internal rebound spring and B-stop are not included.

Quality Assurance

KYB is a major OE shock and strut supplier, and Excel-G is produced on the same assembly lines used for original equipment applications. The design uses OE-quality components and application-specific damping calibration to support factory-style suspension performance on the listed Chevrolet and GMC trucks.