KYB 565099 Shock Absorber - Rear

KYB MonoMax Rear Shock for Ford Excursion

The KYB MonoMax 565099 is a heavy-duty rear shock absorber built for trucks that carry weight, tow, or see rough road use. For 2000-2005 Ford Excursion rear applications, it adds firmer control and stability with a monotube design that responds consistently under load.

MonoMax is KYB’s truck-focused shock line, built around a large-bore monotube layout for stronger damping control and fade-resistant performance. This line is aimed at heavier vehicles and high center-of-gravity platforms, making it a practical upgrade for Ford Excursion owners who need more composed suspension response.

• Heavy-duty monotube shock absorber for rear suspension use
• Up to 40% more damping performance than standard shock absorbers
• Zinc-coated stainless steel piston ring for a positive seal in severe conditions
• Rubber dust boot helps protect the shaft and seal area from dirt and debris
• Engineered to work with vehicles equipped with electronic safety systems such as ESC and ABS
• Lower mount type: E2(12X38); upper mount type: E3(61.6X87X30)
• Compressed length: 17.91 in; extended length: 28.34 in; stroke length: 10.43 in

Built for the Ford Excursion rear suspension, KYB 565099 helps control body motion during towing, hauling, and off-road driving. The monotube construction improves heat management and consistency, while the work-ready sealing and dust protection support long-term durability in demanding use. This part cross-references Gabriel 77837 for the same application.

Common Problems This Shock Can Address

• Excessive rear bounce after bumps or dips
• Reduced stability when towing or carrying heavy cargo
• Loose or unsettled handling on uneven pavement
• Shock fade during repeated load or rough-road use
• Premature wear from dirt, debris, and harsh operating conditions

Installation Notes and Tips

Compatible With 2000-2005 Ford Excursion, rear. Verify mount style, compressed length, and extended length before installation to confirm proper suspension travel and fitment. Inspect related rear suspension components, bushings, and mounting points for wear before replacing the shock absorber. KYB part number 565099 is a direct-fit rear shock application for the listed Ford Excursion years.

Quality Assurance

KYB is a recognized suspension manufacturer with a strong reputation in truck shock absorber design. The MonoMax 565099 uses a monotube construction, a zinc-coated piston ring, and an off-road dust boot to support durability and consistent damping in demanding service.