KYB 565003 Shock Absorber - Rear

KYB MonoMax Rear Shock for Truck Use

The KYB MonoMax 565003 is a heavy-duty rear suspension shock absorber built for trucks and SUVs that carry weight, tow, or see rough road use. Its monotube design is tuned for added control and stable handling on vehicles like the Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer.

KYB’s MonoMax line focuses on suspension performance for demanding driving conditions. This rear shock uses a large-bore monotube construction, a zinc-coated stainless steel piston ring for sealing, and an off-road dust boot to help protect the shaft and seals.

Key Features

• Maximum performance upgrade with up to 40% more damping performance than standard shock absorbers
• Monotube truck shock design for improved handling and control
• Zinc-coated stainless steel piston ring for a positive seal in extreme conditions
• Rubber boot helps keep dirt and debris away from the seals
• Engineered to help vehicles with electronic safety systems such as ESC and ABS
• Rear shock absorber application for select Ford, Mercury, and Mazda models

Product Details

KYB MonoMax 565003 is a suspension shock absorber designed for rear-position applications where load stability and consistent damping matter. With a compressed length of 15.83 inches, extended length of 25.71 inches, and 9.88 inches of stroke, it is built around the dimensions needed for specific rear suspension setups. Mounting details include an E2 lower mount and an E3 upper mount. This part cross-references Monroe Shocks & Struts 911035 for the same application.

Fits 2001-2005 Ford Explorer Sport Trac, rear. Fits 2001-2003 Ford Explorer Sport, rear. Fits 1995-2001 Ford Explorer, rear. Fits 1997-2001 Mercury Mountaineer, rear. Fits 1991-1994 Ford Explorer, rear. Fits 1991-1994 Mazda Navajo, rear.

Common Uses

• Rear-end bounce or instability on a Ford Explorer or Explorer Sport Trac
• Reduced control when towing a trailer or carrying cargo
• Excessive body movement on rough roads or off-road surfaces
• Need for a monotube shock upgrade on select Mercury Mountaineer and Mazda Navajo applications
• Loss of consistent damping under heavier-duty driving conditions

Installation Notes

Verify rear fitment by year, model, and suspension configuration before installation. This part is listed for rear applications only, with exclusions noted for adjustable or electronic adjustable suspension on certain vehicles. Confirm the upper and lower mount types match the vehicle’s suspension hardware before ordering.

Quality Assurance

KYB builds the MonoMax line for demanding truck and SUV service, using a monotube design and corrosion-resistant piston ring materials to support consistent performance in harsh conditions. The included dust boot adds protection for the shaft and seal area during everyday and off-road use.