KYB Gas-a-Just Front Monotube Shock Absorber KG4517

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.

Brief Description: The KYB Gas-a-Just KG4517 is a high-performance front monotube shock absorber designed to provide responsive handling, improved suspension control, and consistent performance for select classic Ford, Mercury, and Bricklin applications. Its monotube design separates the hydraulic oil and high-pressure nitrogen gas into two working chambers, helping maintain control during demanding driving conditions.

Performance Benefits: The air-free hydraulic piston and valve area responds quickly to changes in road conditions, while the floating piston and pressurized nitrogen chamber help reduce aeration and shock fade. The KYB Gas-a-Just automatically adjusts its damping response based on driving demands, delivering a controlled ride during normal use and added performance when cornering, braking, or navigating uneven pavement. Properly functioning shocks also support the suspension, braking, tire contact, and electronic safety systems as intended by the vehicle manufacturer.

• Monotube Design: Provides separate hydraulic and gas chambers for consistent damping and responsive suspension control.
• High-Pressure Nitrogen: Helps minimize aeration and maintain shock performance during extended or demanding driving.
• Automatic Performance Adjustment: Responds to changing road and handling conditions without manual adjustment.
• Electronic Safety System Support: Helps the suspension, brakes, and tires operate as intended when paired with properly maintained vehicle components.

Key Product Specifications & Technical Data:

• Brand: KYB
• Part Number: KG4517
• Product Line: Gas-a-Just
• Product Type: Front monotube shock absorber
• Suspension Position: Front
• Gas Technology: High-pressure nitrogen with floating piston
• Construction: Twin-chamber monotube design
• Quantity: One shock absorber

What's Included: One KYB Gas-a-Just KG4517 front shock absorber. Installation hardware and additional components are not included unless supplied by the vehicle manufacturer or specified separately.

Fitment: Listed applications include the 1974–1976 Bricklin SV-1, 1969–1977 Ford Maverick, 1969–1977 Ford Mustang, and select 1967–1970 Mercury Cougar models. Verify year, make, model, suspension position, and application details before ordering, as fitment may vary by vehicle configuration.

Features:

• Monotube design provides separate hydraulic and high-pressure gas chambers for responsive control.
• High-pressure nitrogen helps reduce aeration and shock fade during demanding driving conditions.
• Automatically adjusts damping response to provide comfortable normal driving and added performance when needed.
• Supports proper suspension, braking, tire contact, and electronic safety system operation.

Fitments:
1964 Ford Mustang Base
1965 Ford Mustang Base
1965 Ford Mustang Shelby GT-350
1966 Ford Mustang Base
1966 Ford Mustang Shelby GT-350
1966 Ford Mustang Shelby GT-350H
1967 Ford Mustang Base
1967 Ford Mustang Shelby GT-350
1967 Ford Mustang Shelby GT-500
1967 Mercury Cougar Base
1967 Mercury Cougar XR-7
1968 Ford Mustang Base
1968 Ford Mustang Shelby GT-350
1968 Ford Mustang Shelby GT-500
1968 Ford Mustang Shelby GT-500KR
1968 Mercury Cougar Base
1968 Mercury Cougar XR-7
1969 Ford Mustang Base
1969 Ford Mustang Boss 302
1969 Ford Mustang Boss 429
1969 Ford Mustang Shelby GT-350
1969 Ford Mustang Shelby GT-500
1969 Mercury Cougar Base
1969 Mercury Cougar Boss 302
1969 Mercury Cougar Boss 429
1969 Mercury Cougar Cobra Jet
1969 Mercury Cougar XR-7
1970 Ford Maverick Base
1970 Ford Mustang Base
1970 Ford Mustang Boss 302
1970 Ford Mustang Boss 429
1970 Ford Mustang Grande
1970 Ford Mustang Mach 1
1970 Ford Mustang Shelby GT-350
1970 Ford Mustang Shelby GT-500
1970 Mercury Cougar Base
1970 Mercury Cougar Boss 302
1970 Mercury Cougar Boss 429
1970 Mercury Cougar Cobra Jet
1970 Mercury Cougar XR-7
1971 Ford Maverick Base
1971 Mercury Comet Base
1972 Ford Maverick Base
1972 Mercury Comet Base
1973 Ford Maverick Base
1973 Mercury Comet Base
1974 Bricklin SV-1 Base
1974 Ford Maverick Base
1974 Mercury Comet Base
1975 Bricklin SV-1 Base
1975 Ford Maverick Base
1975 Ford Maverick Grabber
1975 Mercury Comet Base
1976 Bricklin SV-1 Base
1976 Ford Maverick Base
1976 Ford Maverick Grabber
1976 Mercury Comet Base
1977 Ford Maverick Base
1977 Ford Maverick Grabber
1977 Mercury Comet Base

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: t
Units Per Sku: 1