KYB 5650023 MonoMax Heavy-Duty Monotube Shock Absorber

The KYB MonoMax 5650023 is a high-performance, heavy-duty monotube shock absorber engineered for trucks, 4x4s, and SUVs that demand maximum control and durability. Designed for drivers who haul heavy loads, tow trailers, plow, or venture off-road, the MonoMax delivers up to 40% more damping performance compared to standard OE twin-tube shock absorbers.

Key Features:

• High-Pressure Monotube Design: Keeps gas and oil fully separated, eliminating fluid foaming and fade that can occur in twin-tube shocks under hard use — delivering consistent, fade-free performance.
• Floating Piston Technology: Automatically adjusts damping in response to changing road conditions, providing greater control when the shock travels faster or farther, then returning to a comfortable ride on normal roads.
• Oversized Large-Bore Cylinder: The larger bore and heavy-gauge wall construction provide the additional stability that heavier, high-center-of-gravity vehicles require.
• 100% Fluid Valving with Velocity-Sensitive Piston: Delivers improved responsiveness and dual damping control for superior handling and stability.
• Zinc-Coated Steel Piston Ring: Built for long-life reliability even under demanding work-truck conditions.
• Protective Dust Boot Included: A thick rubber dust boot shields the shaft from debris and environmental elements, extending the service life of the oil seal.
• Sold Individually: Single shock absorber — it is recommended to replace shocks in pairs to maintain balanced suspension performance.

The KYB MonoMax is the ideal suspension upgrade for diesel trucks, lifted applications, and vehicles equipped with larger, heavier aftermarket wheels and tires. KYB backs this shock with a limited lifetime warranty for the original retail purchaser for as long as the product remains on the originally installed vehicle.