KYB SB129 - Strut Boot

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 Gas-a-Just is available as an OE monotube replacement and as an OE twin-tube performance upgrade. The KYB Gas-a-Just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness & 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.

Adds up to 25% more damping performance over original equipment shocks
Components and valving designed specifically for the Pathfinder and QX4
High gas pressure design provides instant, extra control
monotube design outperforms all other standard shock absorbers
Unique, air-free, hydraulic unit eliminates performance fade
Adds up to 25% more damping performance over original equipment shocks
Components and valving designed specifically for the Pathfinder and QX4
High gas pressure design provides instant, extra control
monotube design outperforms all other standard shock absorbers
Unique, air-free, hydraulic unit eliminates performance fade

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KYB KG4163 Gas-a-Just Gas Shock;