KYB Gas-a-Just Monotube Rear Shock Absorber KG5548

The KYB Gas-a-just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.

• Electronic safety systems depend on the suspension, brakes and tires operating as the vehicle manufacturer intended. The KYB Gas-a-just helps keep Electronic Safety Systems performing as designed.

Upgrade rear suspension control with the KYB Gas-a-Just monotube shock absorber, part number KG5548. Designed to provide responsive handling and consistent damping, this high-pressure shock absorber automatically adjusts to changing road and driving conditions. Its monotube design offers performance advantages over conventional twin-tube shock absorbers, helping maintain control during normal driving and demanding maneuvers.

The KYB Gas-a-Just uses two separate working chambers. An air-free hydraulic piston and valve area delivers responsive damping, while a high-pressure nitrogen gas chamber with a floating piston helps reduce aeration and shock fade. This design supports a comfortable ride during everyday driving while providing additional performance when needed. By helping the suspension operate as intended, the KYB Gas-a-Just also supports the proper function of vehicle electronic safety systems that depend on the suspension, brakes, and tires.

Key Product Specifications & Technical Data

• Brand: KYB
• Part Number: KG5548
• Product Type: Monotube shock absorber
• Position: Rear
• Gas Type: High-pressure nitrogen
• Design: Twin-chamber monotube construction with floating piston
• Application: Automotive suspension replacement
• Quantity: One shock absorber

What's Included

• One KYB Gas-a-Just rear shock absorber

Fitment: Compatible applications include select 1978–1981 Buick Century models, 1978–1987 Buick Regal models, 1986–1988 Avanti II models, 1978–1981 Pontiac LeMans models, and 1987 Pontiac Grand Prix models. Verify vehicle year, make, model, position, and suspension configuration before ordering.

Features:

• Monotube Performance: Provides responsive damping and improved control compared with traditional twin-tube designs.
• Automatic Adjustment: Reacts instantly to changing road conditions and driving demands for consistent suspension performance.
• Fade Resistance: High-pressure nitrogen and the air-free hydraulic chamber help reduce aeration-related shock fade.
• Electronic Safety Support: Helps the suspension perform as intended so vehicle electronic safety systems can operate properly.

Fitments:
1978 Buick Century Custom
1978 Buick Century Limited
1978 Buick Century Special
1978 Buick Century Sport
1978 Buick Regal Base
1978 Buick Regal Limited
1978 Buick Regal Sport
1978 Chevrolet El Camino Base
1978 Chevrolet El Camino Conquista
1978 Chevrolet El Camino SS
1978 Chevrolet Malibu Base
1978 Chevrolet Malibu Classic
1978 Chevrolet Malibu Classic Estate
1978 Chevrolet Malibu Classic Landau
1978 Chevrolet Monte Carlo Landau
1978 Chevrolet Monte Carlo Sport
1978 GMC Caballero Base
1978 GMC Caballero Diablo
1978 GMC Caballero Laredo
1978 Oldsmobile Cutlass Vista Cruiser
1978 Oldsmobile Cutlass Calais Base
1978 Oldsmobile Cutlass Salon 442
1978 Oldsmobile Cutlass Salon Base
1978 Oldsmobile Cutlass Salon Brougham
1978 Oldsmobile Cutlass Supreme Base
1978 Oldsmobile Cutlass Supreme Brougham
1978 Pontiac Grand Am Base
1978 Pontiac Grand LeMans Base
1978 Pontiac Grand LeMans Safari
1978 Pontiac Grand Prix Base
1978 Pontiac Grand Prix LJ
1978 Pontiac Grand Prix SJ
1978 Pontiac LeMans Base
1978 Pontiac LeMans Safari
1979 Buick Century Custom
1979 Buick Century Limited
1979 Buick Century Special
1979 Buick Century Sport
1979 Buick Regal Base
1979 Buick Regal Limited
1979 Buick Regal Sport
1979 Chevrolet El Camino Base
1979 Chevrolet El Camino Royal Knight
1979 Chevrolet El Camino SS
1979 Chevrolet Malibu Base
1979 Chevrolet Malibu Classic
1979 Chevrolet Malibu Classic Estate
1979 Chevrolet Malibu Classic Landau
1979 Chevrolet Malibu Classic Sport
1979 Chevrolet Malibu Estate
1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1979 Chevrolet Malibu Sport
1979 Chevrolet Monte Carlo Base
1979 Chevrolet Monte Carlo Landau
1979 GMC Caballero Base
1979 GMC Caballero Diablo
1979 GMC Caballero Laredo
1979 Oldsmobile Cutlass Vista Cruiser
1979 Oldsmobile Cutlass Vista Cruiser Brougham
1979 Oldsmobile Cutlass Calais Base
1979 Oldsmobile Cutlass Salon 442
1979 Oldsmobile Cutlass Salon Base
1979 Oldsmobile Cutlass Salon Brougham
1979 Oldsmobile Cutlass Salon Hurst
1979 Oldsmobile Cutlass Supreme Base
1979 Oldsmobile Cutlass Supreme Brougham
1979 Pontiac Grand Am Base
1979 Pontiac Grand LeMans Base
1979 Pontiac Grand LeMans Safari
1979 Pontiac Grand Prix Base
1979 Pontiac Grand Prix LJ
1979 Pontiac Grand Prix SJ
1979 Pontiac LeMans Base
1979 Pontiac LeMans Safari
1980 Buick Century Base
1980 Buick Century Estate
1980 Buick Century Limited
1980 Buick Century Sport
1980 Buick Regal Base
1980 Buick Regal Limited
1980 Buick Regal Sport
1980 Chevrolet El Camino Base
1980 Chevrolet El Camino Royal Knight
1980 Chevrolet El Camino SS
1980 Chevrolet Malibu Base
1980 Chevrolet Malibu Classic
1980 Chevrolet Malibu Classic Estate
1980 Chevrolet Malibu Classic Landau
1980 Chevrolet Malibu Classic Sport
1980 Chevrolet Malibu Estate
1980 Chevrolet Malibu Sport
1980 Chevrolet Monte Carlo Landau
1980 Chevrolet Monte Carlo Sport
1980 GMC Caballero Base
1980 GMC Caballero Diablo
1980 GMC Caballero Laredo
1980 Oldsmobile Cutlass Base
1980 Oldsmobile Cutlass Brougham
1980 Oldsmobile Cutlass LS
1980 Oldsmobile Cutlass Calais Base
1980 Oldsmobile Cutlass Cruiser Base
1980 Oldsmobile Cutlass Cruiser Brougham
1980 Oldsmobile Cutlass Salon Base
1980 Oldsmobile Cutlass Salon Brougham
1980 Oldsmobile Cutlass Supreme Base
1980 Oldsmobile Cutlass Supreme Brougham
1980 Pontiac Grand Am Base
1980 Pontiac Grand LeMans Base
1980 Pontiac Grand LeMans Safari
1980 Pontiac Grand Prix Base
1980 Pontiac Grand Prix LJ
1980 Pontiac Grand Prix SJ
1980 Pontiac LeMans Base
1980 Pontiac LeMans Safari
1981 Buick Century Base
1981 Buick Century Estate
1981 Buick Century Limited
1981 Buick Century Sport
1981 Buick Regal Base
1981 Buick Regal Limited
1981 Buick Regal Sport
1981 Chevrolet El Camino Base
1981 Chevrolet El Camino Conquista
1981 Chevrolet El Camino Royal Knight
1981 Chevrolet El Camino SS
1981 Chevrolet Malibu Base
1981 Chevrolet Malibu Classic
1981 Chevrolet Malibu Classic Landau
1981 Chevrolet Monte Carlo Base
1981 Chevrolet Monte Carlo Landau
1981 GMC Caballero Amarillo
1981 GMC Caballero Base
1981 GMC Caballero Conquista
1981 GMC Caballero Diablo
1981 GMC Caballero Royal Knight
1981 Oldsmobile Cutlass Brougham
1981 Oldsmobile Cutlass LS
1981 Oldsmobile Cutlass Calais Base
1981 Oldsmobile Cutlass Cruiser Base
1981 Oldsmobile Cutlass Cruiser Brougham
1981 Oldsmobile Cutlass Supreme Base
1981 Oldsmobile Cutlass Supreme Brougham
1981 Oldsmobile Cutlass Supreme LS
1981 Pontiac Grand LeMans Base
1981 Pontiac Grand LeMans Safari
1981 Pontiac Grand Prix Base
1981 Pontiac Grand Prix Brougham
1981 Pontiac Grand Prix LJ
1981 Pontiac LeMans Base
1981 Pontiac LeMans Safari
1982 Buick Regal Base
1982 Buick Regal Estate Wagon
1982 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982 Buick Regal Sport
1982 Chevrolet El Camino Base
1982 Chevrolet El Camino Conquista
1982 Chevrolet El Camino SS
1982 Chevrolet Malibu Classic
1982 Chevrolet Monte Carlo Base
1982 GMC Caballero Amarillo
1982 GMC Caballero Base
1982 GMC Caballero Diablo
1982 Oldsmobile Cutlass Calais Base
1982 Oldsmobile Cutlass Cruiser Base
1982 Oldsmobile Cutlass Supreme Base
1982 Oldsmobile Cutlass Supreme Brougham
1982 Pontiac Bonneville Base
1982 Pontiac Bonneville Brougham
1982 Pontiac Grand Prix Base
1982 Pontiac Grand Prix Brougham
1982 Pontiac Grand Prix LJ
1983 Buick Regal Base
1983 Buick Regal Estate Wagon
1983 Buick Regal Limited
1983 Buick Regal T-Type
1983 Chevrolet El Camino Base
1983 Chevrolet El Camino Conquista
1983 Chevrolet El Camino SS
1983 Chevrolet Malibu Classic
1983 Chevrolet Monte Carlo Base
1983 Chevrolet Monte Carlo CL
1983 Chevrolet Monte Carlo SS
1983 GMC Caballero Amarillo
1983 GMC Caballero Base
1983 GMC Caballero Diablo
1983 Oldsmobile Cutlass Calais Base
1983 Oldsmobile Cutlass Calais Hurst
1983 Oldsmobile Cutlass Cruiser Base
1983 Oldsmobile Cutlass Supreme Base
1983 Oldsmobile Cutlass Supreme Brougham
1983 Pontiac Bonneville Base
1983 Pontiac Bonneville Brougham
1983 Pontiac Grand Prix Base
1983 Pontiac Grand Prix Brougham
1983 Pontiac Grand Prix LJ
1984 Buick Regal Base
1984 Buick Regal Grand National
1984 Buick Regal Limited
1984 Buick Regal T-Type
1984 Chevrolet El Camino Base
1984 Chevrolet El Camino Conquista
1984 Chevrolet El Camino SS
1984 Chevrolet Monte Carlo Base
1984 Chevrolet Monte Carlo SS
1984 GMC Caballero Amarillo
1984 GMC Caballero Base
1984 GMC Caballero Diablo
1984 Oldsmobile Cutlass Calais Base
1984 Oldsmobile Cutlass Calais Hurst
1984 Oldsmobile Cutlass Supreme Base
1984 Oldsmobile Cutlass Supreme Brougham
1984 Pontiac Bonneville Base
1984 Pontiac Bonneville Brougham
1984 Pontiac Bonneville LE
1984 Pontiac Grand Prix Base
1984 Pontiac Grand Prix Brougham
1984 Pontiac Grand Prix LE
1985 Buick Regal Base
1985 Buick Regal Grand National
1985 Buick Regal Limited
1985 Buick Regal T-Type
1985 Chevrolet El Camino Base
1985 Chevrolet El Camino Conquista
1985 Chevrolet El Camino SS
1985 Chevrolet Monte Carlo Base
1985 Chevrolet Monte Carlo SS
1985 GMC Caballero Amarillo
1985 GMC Caballero Base
1985 GMC Caballero Diablo
1985 Oldsmobile Cutlass Salon 442
1985 Oldsmobile Cutlass Salon Base
1985 Oldsmobile Cutlass Supreme Base
1985 Oldsmobile Cutlass Supreme Brougham
1985 Oldsmobile Cutlass Supreme LS
1985 Pontiac Bonneville Base
1985 Pontiac Bonneville Brougham
1985 Pontiac Bonneville LE
1985 Pontiac Grand Prix Base
1985 Pontiac Grand Prix Brougham
1985 Pontiac Grand Prix LE
1986 Buick Regal Base
1986 Buick Regal Grand National
1986 Buick Regal Limited
1986 Buick Regal T-Type
1986 Chevrolet El Camino Base
1986 Chevrolet El Camino Conquista
1986 Chevrolet El Camino SS
1986 Chevrolet Monte Carlo Base
1986 Chevrolet Monte Carlo LS
1986 Chevrolet Monte Carlo SS
1986 GMC Caballero Amarillo
1986 GMC Caballero Base
1986 GMC Caballero Diablo
1986 Oldsmobile Cutlass Salon 442
1986 Oldsmobile Cutlass Salon Base
1986 Oldsmobile Cutlass Supreme Base
1986 Oldsmobile Cutlass Supreme Brougham
1986 Pontiac Bonneville Base
1986 Pontiac Bonneville Brougham
1986 Pontiac Bonneville LE
1986 Pontiac Grand Prix Base
1986 Pontiac Grand Prix Brougham
1986 Pontiac Grand Prix LE
1987 Avanti II Base
1987 Buick Regal Base
1987 Buick Regal GNX
1987 Buick Regal Grand National
1987 Buick Regal Limited
1987 Chevrolet El Camino Base
1987 Chevrolet El Camino SS
1987 Chevrolet Monte Carlo Base
1987 Chevrolet Monte Carlo LS
1987 Chevrolet Monte Carlo SS
1987 GMC Caballero Base
1987 GMC Caballero Diablo
1987 Oldsmobile Cutlass Salon Base
1987 Oldsmobile Cutlass Supreme 442
1987 Oldsmobile Cutlass Supreme Base
1987 Oldsmobile Cutlass Supreme Brougham
1987 Pontiac Grand Prix Base
1987 Pontiac Grand Prix Brougham
1987 Pontiac Grand Prix LE
1988 Avanti II Base
1988 Chevrolet Monte Carlo Base
1988 Chevrolet Monte Carlo LS
1988 Chevrolet Monte Carlo SS
1988 Oldsmobile Cutlass Supreme Base
1988 Oldsmobile Cutlass Supreme Classic
1988 Oldsmobile Cutlass Supreme Classic Brougham
1988 Oldsmobile Cutlass Supreme Indy 500 Pace Car
1988 Oldsmobile Cutlass Supreme International
1988 Oldsmobile Cutlass Supreme SL

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Clearance Item: t
Units Per Sku: 1