KYB 565009 Shock Absorber - Rear

KYB MonoMax Rear Shock for Ford F-150

The KYB MonoMax 565009 is a heavy-duty rear suspension shock absorber built for Ford F-150 trucks that work, tow, haul, or see off-road use. Its monotube design is tuned for added control and stability on heavier vehicles and high center-of-gravity applications.

For 1997-2003 Ford F-150 rear shock replacement and lift-replacement applications, this KYB MonoMax rear shock delivers a firmer, more controlled ride than a standard shock absorber. The 565009 is also a direct cross-reference to Monroe Shocks & Struts 911262 for the same application.

MonoMax Product Line Details

KYB MonoMax shocks are built for truck use, with a monotube construction that responds consistently as driving conditions change. The line is aimed at drivers who need stable damping for load carrying, towing, and uneven terrain rather than soft passenger-car tuning.

Key Features

• Maximum performance upgrade with up to 40% more damping performance than standard shock absorbers
• Truck monotube design for improved handling and control
• Zinc-coated stainless steel piston ring for a positive seal in severe conditions
• Rubber dust boot included to help protect the shaft and keep dirt away from the seals
• Engineered to help vehicles with electronic safety systems such as ESC and ABS
• Rear shock absorber dimensions: 16.5 compressed length, 26.97 extended length, 10.47 stroke length
• Lower mount type E2(12X38) and upper mount type S1

Detailed Description

KYB 565009 is a suspension shock absorber from the MonoMax line, designed for the rear of 1997-2003 Ford F-150 trucks. It uses a heavy-duty monotube layout to maintain damping consistency under load, which is useful when the truck is carrying cargo, towing a trailer, or operating on rough roads. The zinc-coated piston ring and included dust boot support durability in demanding conditions, while the shock’s dimensions and mount types help confirm application matching during replacement.

Fits 1997-2003 Ford F-150, rear. Fits 1997-2003 Ford F-150, rear lift replacement shocks with 0-1 inch lift, excluding the 7700 GVW package. Fits 1997-2003 Ford F-150, rear lift replacement shocks for Rancho RS5238, RS9238, and RSX17311 with 4-5 inch lift. Fits 1997-2003 Ford F-150, rear lift replacement shocks for Edelbrock 34986 with 4-5 inch lift.

Common Uses

• Rear shock replacement on a 1997-2003 Ford F-150
• Improving control during towing or hauling
• Replacing worn shocks that allow excess bounce or body movement
• Restoring damping on lifted F-150 suspension setups
• Addressing reduced stability on rough pavement or off-road surfaces

Installation Notes and Tips

Verify rear fitment by matching the vehicle year, lift height, and existing shock reference before installation. Confirm the compressed length, extended length, and mount types against the current suspension setup, especially on lifted trucks and applications listed for Rancho or Edelbrock replacements. Inspect surrounding bushings, brackets, and mounting points during service to ensure the new shock can operate through its full stroke.

Quality Assurance

KYB is a recognized suspension manufacturer with a truck-focused MonoMax line built for demanding use. Part number 565009 is engineered for rear applications on the listed Ford F-150 models and is supported by the product’s heavy-duty monotube construction and corrosion-resistant piston ring design.