KYB 5510025 Shock Absorber - Rear

KYB Gas-a-just Rear Shock for Explorer

The KYB Gas-a-just 5510025 is a monotube suspension shock absorber built for the rear of select Ford Explorer models. It is engineered to restore control and handling while delivering quicker response under load, making it a strong choice for Ford Explorer rear shock replacement on vehicles that tow, work, or run larger tires and wheels.

KYB’s Gas-a-just line uses a high-pressure monotube design with separate gas and oil chambers for consistent damping and fade-resistant operation. For 2013-2019 Ford Explorer rear applications, this design helps maintain steering response and suspension control during everyday driving and when the vehicle is carrying extra demand.

Key Features

• Part number 5510025
• Monotube shock absorber design for responsive damping
• Adds up to 25% more damping performance over original equipment shocks
• High-pressure nitrogen gas and hydraulic chambers separate gas from oil for fade-free operation
• Ultra-smooth triple chrome plated piston rod helps reduce seal wear
• Includes dust cover
• Built with B-stop and R-stop features
• Upper mount type: S1 (12 mm)
• Lower mount type: special

Detailed Description

The KYB Gas-a-just 5510025 is designed to help restore the factory handling balance of the Ford Explorer while adding the extra damping control many drivers want from a rear shock upgrade. Its monotube construction responds quickly to suspension movement, and the high gas pressure helps the shock react faster to steering and body-motion inputs. This makes it a practical rear suspension shock absorber for Ford Explorer owners who want more control without changing the vehicle’s basic ride character.

With a compressed length of 16.73 inches, extended length of 24.43 inches, and 7.7 inches of stroke, this shock is built for the specified rear fitment. The KYB Gas-a-just product line is aimed at vehicles that work harder than average, including those used for towing or fitted with heavier wheels and tires. Part number 5510025 also cross-references Ford OE numbers such as BB5Z18125D and BB5Z18125E for the same application.

What It Helps Address

• Excessive rear bounce or float after bumps
• Reduced control when towing or carrying added load
• Delayed suspension response from worn OE shocks
• Handling changes caused by larger, heavier tires and wheels
• Seal wear and fluid leakage associated with shock failure

Installation Notes and Tips

Fits 2013-2019 Ford Explorer, rear. Verify mount style, compressed length, and extended length before installation to confirm the shock matches the vehicle’s rear suspension configuration. Replace shocks in matched pairs on the same axle to maintain balanced damping, and inspect related suspension components for wear during service.

Quality Assurance

KYB is a long-established suspension manufacturer known for OE-style replacement and performance damping components. The Gas-a-just monotube design is built to deliver consistent response and support vehicle systems that rely on suspension performance remaining within manufacturer specifications.