Monroe 5551 Suspension Shock Absorber - Rear

Overview of Monroe OESpectrum Passenger Car Shock Absorber 5551

The Monroe OESpectrum Passenger Car Shock Absorber part number 5551 is engineered for Hyundai and Kia vehicles, including the Cadenza, Optima, and Sonata models. Designed to provide consistent ride control and handling, this shock absorber addresses suspension needs with precision.

• Extended length: 25.83 inches
• Compressed length: 17.93 inches
• Travel length: 7.56 inches
• Upper mounting type: Stem mount with M10 thread pitch
• Lower mounting type: Loop bushing and sleeve mount (14mm sleeve ID x 2.7/16" sleeve OAL)
• Includes extended bumper stop for added suspension protection
• Reserve tube diameter: 1.75 inches

Monroe OESpectrum Passenger Car Shock Absorber Product Line

The OESpectrum Passenger Car Shock Absorber line by Monroe is designed to meet or exceed original equipment specifications for passenger cars. This product line focuses on delivering a balance of comfort and control by utilizing advanced valving technology. The 5551 shock absorber is part of this line, ensuring compatibility and performance tailored for Hyundai and Kia sedans such as the Cadenza, Optima, and Sonata.

Technical Details and Features

The Monroe 5551 shock absorber features an extended length of 25.83 inches and a compressed length of 17.93 inches, providing a travel length of 7.56 inches. It is equipped with an extended bumper stop to help protect the suspension during full compression. The upper mounting uses a stem mount with an M10 thread pitch, while the lower mounting employs a loop bushing and sleeve mount with a 14mm sleeve inner diameter and 2.7/16" outer sleeve length. The reserve tube diameter measures 1.75 inches, contributing to the shock's durability and heat dissipation capabilities. Notably, this shock absorber does not include a dust shield or compressed bumper stop, focusing on essential suspension functions.

Applications and Suspension Issues Addressed

• Restores ride comfort and vehicle stability for Hyundai Cadenza, Optima, and Sonata
• Reduces excessive body roll and sway during cornering
• Minimizes suspension bottoming out with extended bumper stop
• Improves handling response and braking performance
• Replaces worn or damaged shocks to maintain factory suspension geometry

Installation Notes and Tips

When installing the Monroe OESpectrum shock absorber 5551, ensure the correct orientation of the stem mount and loop bushing lower mount. Verify that the M10 thread pitch on the upper mount matches the vehicle specifications. It is recommended to inspect related suspension components such as bushings and mounts for wear during replacement. Proper torque specifications should be followed to maintain safety and performance.

Quality Assurance and Warranty

Monroe manufactures the OESpectrum Passenger Car Shock Absorber line to meet stringent quality standards. While specific warranty details for part number 5551 are not provided here, Monroe typically offers coverage against defects in materials and workmanship. Users should consult product documentation or Monroe directly for warranty terms applicable to this shock absorber.