KYB 565004 Shock Absorber - Front

KYB MonoMax Front Shock Absorber

The KYB MonoMax 565004 is a heavy-duty front shock absorber built for trucks and SUVs that carry weight, tow, or see rough road use. Its monotube design is made to deliver consistent control and stability for Ford F-150, Ford Expedition, Lincoln Navigator, and Ford F-250 applications listed below.

Key Features

• Large-bore monotube construction for improved handling response and control
• Up to 40% more damping performance than standard shock absorbers
• Zinc-coated stainless steel piston ring for a positive seal in severe conditions
• Off-road dust boot helps protect the shaft and seal area from dirt and debris
• Engineered to work with electronic safety systems such as ESC and ABS
• Front shock absorber with compressed length of 10.47 in., extended length of 14.96 in., and stroke length of 4.49 in.
• Lower mount type E3(52X87X30) and upper mount type S1(12MM)

Product Details

KYB MonoMax is the brand’s truck-focused shock line, built for heavier, higher-center-of-gravity vehicles that need firmer damping and fade-resistant performance. The KYB 565004 uses a monotube design to maintain control under load and on uneven surfaces, making it a practical choice for drivers who tow, haul, or spend time off pavement. This part cross-references Monroe Shocks & Struts 911131 for the same application.

Fits 2004 Ford F-150 Heritage, front. Fits 1999-2003 Ford F-150, front. Fits 1997-2003 Ford F-150, front. Fits 1997-2002 Ford Expedition, front. Fits 1998-2002 Lincoln Navigator, front. Fits 1997-1999 Ford F-250, front.

Common Uses

• Front-end bounce or instability on loaded trucks and SUVs
• Excessive body movement during towing or hauling
• Reduced control on rough roads, gravel, or off-road surfaces
• Need for a monotube shock upgrade on Ford truck and SUV platforms
• Wear-related loss of damping performance in the front suspension

Installation Notes

Verify mount style, compressed length, and extended length before installation. This KYB MonoMax 565004 is a front-position shock absorber, so confirm the vehicle’s suspension configuration and any lowering or GVW-related notes shown in the fitment data. Use the listed fitment exactly for 2004 Ford F-150 Heritage, 1999-2003 Ford F-150, 1997-2003 Ford F-150, 1997-2002 Ford Expedition, 1998-2002 Lincoln Navigator, and 1997-1999 Ford F-250 applications.

Quality Assurance

KYB designs the MonoMax line for demanding truck use with fade-resistant damping, a sealed monotube layout, and corrosion-resistant piston-ring construction. The included dust boot adds protection for the shaft and seal area in off-road and work-truck environments.