KYB KG4513 Gas-a-Just Front Shock 68-91 GM Classic Cars Buick Chevy Olds Pontiac

Regular price: $58.95
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Sale price: $58.95

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In Stock: 6

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Product Specification:

SKU:KYBKG4513

MPN: KG4513

UPC: 781552045137

Weight: 2.3 lb

Inventory: 6

Type: Shocks and Struts

Vehicle Fitment

1986-1991 Avanti Avanti II (RWD)
1973-1981 Buick Century (RWD)
1968-1969 Buick GS 350 / GS 400 (RWD)
1970-1972 Buick GS 455 (RWD)
1973-1987 Buick Regal (RWD)
1968-1972 Buick Skylark / Special / Sportwagon (RWD)
1975-1979 Cadillac Seville (RWD)
1968-1977 Chevrolet Chevelle (RWD)
1968-1987 Chevrolet El Camino (RWD)
1973-1976 Chevrolet Laguna (RWD)
1973-1983 Chevrolet Malibu (RWD)
1970-1988 Chevrolet Monte Carlo (RWD)
1978-1987 GMC Caballero (RWD)
1971-1977 GMC Sprint (RWD)
1968-1971 Oldsmobile 442 (RWD)
1968-1988 Oldsmobile Cutlass / Cutlass Supreme (RWD)
1968-1972 Oldsmobile F85 (RWD)
1968-1977 Oldsmobile Vista Cruiser (RWD)
1982-1986 Pontiac Bonneville (RWD)
1988 Pontiac Fiero (RWD)
1973-1980 Pontiac Grand Am (RWD)
1975-1983 Pontiac Grand LeMans (RWD)
1968-1981 Pontiac LeMans (RWD)
1968-1970 Pontiac Tempest (RWD)

Fitment Notes

Position: Front - driver side and passenger side (sold individually; 2 units required per axle)
Fits RWD (Rear-Wheel Drive) models only across all listed applications
Replace shocks in pairs to maintain balanced front handling
Replaces OEM part numbers: 69600, 5840
Hardware included; shock boot sold separately

Features

KYB Gas-a-Just high-pressure monotube design - up to 25% more damping than original equipment shocks
Two-chamber monotube design: air-free hydraulic piston area and floating-piston nitrogen gas area
Velocity-sensitive valving instantly adjusts to road conditions and load changes
Eliminates aeration and fluid foaming - fade-free performance across all driving conditions
Valving and components specifically calibrated for classic GM RWD vehicle suspension geometry
Ultra-smooth triple chrome-plated piston rod reduces seal wear and extends service life
Performance upgrade over factory twin-tube shocks - improves steering response by up to 30%
Backed by KYB's limited lifetime warranty to the original purchaser

Specifications

Part Number: KG4513
Product Line: KYB Gas-a-Just
Shock Design: High-Pressure Monotube, Gas-Charged (Nitrogen)
Extended Length: 13.03 in.
Compressed Length: 8.58 in.
Stroke Length: 4.45 in.
Adjustable Valving: No
Ride Height: Stock
Position: Front (driver or passenger side)
Drivetrain: RWD
Quantity: Sold individually (1x shock per package)
OEM Cross Reference: 69600, 5840

Included Components

1x KYB Gas-a-Just Front Shock Absorber
1x Hardware Kit (washers, bushings, and nuts)
Note: Shock boot sold separately; factory mounting bolts are reused

Product Description

The KYB KG4513 is a high-pressure Gas-a-Just monotube front shock absorber covering a wide range of classic GM rear-wheel drive platforms from 1968 through 1991 - spanning A-body, G-body, and select other RWD architectures used across Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac. The Gas-a-Just monotube design delivers up to 25% more damping force than the original factory twin-tube shocks these vehicles left the factory with, making it both an OE replacement for monotube-equipped applications and a genuine performance upgrade for twin-tube ones. Valving is specifically calibrated for the suspension geometry of classic GM platforms, improving steering response and reducing front-end dive and body roll.

The two-chamber monotube design keeps oil and gas permanently separated by a floating piston, eliminating aeration and the performance fade that plagues twin-tube designs under sustained or demanding use. The triple chrome-plated piston rod minimizes friction and extends seal life. Sold individually - two required per vehicle. Replaces OEM part numbers 69600 and 5840. Backed by KYB's limited lifetime warranty.