Monroe 550055 Shock Absorber - Rear

Overview of Monroe Magnum Severe Service Shock Absorber 550055

The Monroe Magnum Severe Service Load Adjusting Shock Absorber 550055 is engineered for Ford, Lincoln, and Mercury vehicles, specifically designed to meet the demands of Crown Victoria, Grand Marquis, and Town Car models. This suspension shock absorber offers reliable performance with features tailored for severe service conditions.

• Travel Length: 7.75 inches
• Extended Length: 20.125 inches
• Compressed Length: 12.375 inches
• Includes Plastic Dust Shield for protection
• Extended Bumper Stop for enhanced durability
• Lower Mounting: Loop bushing & sleeve mount (12mm sleeve ID x 1.5" sleeve OAL)
• Upper Mounting: Stem mount with 2.3/8" stem length and 3/8"-16 thread pitch
• Parts Pack included: P01136, P01344

Magnum Severe Service Load Adjusting Shock Absorber Line Details

The Magnum Severe Service Load Adjusting Shock Absorber line by Monroe is designed to provide load-sensitive damping for vehicles operating under heavy-duty or severe conditions. This product line adjusts to varying load weights, improving ride control and suspension stability. The 550055 part number is a specific fitment within this line, optimized for full-size Ford, Lincoln, and Mercury sedans.

Product Features and Technical Specifications

This Monroe shock absorber features a 7.75-inch travel length and an extended length of 20.125 inches, allowing for effective suspension movement and control. The plastic dust shield protects internal components from dirt and debris, extending the service life of the shock. The extended bumper stop helps absorb impacts during suspension compression, reducing wear. The lower mounting uses a loop bushing and sleeve mount with precise dimensions (12mm sleeve ID by 1.5 inches sleeve overall length), while the upper mounting is a stem mount with a 2.3/8-inch stem length and 3/8"-16 thread pitch, ensuring secure installation.

Compatible Vehicles and Applications

• Ford Crown Victoria
• Lincoln Grand Marquis
• Mercury Town Car

This shock absorber is designed to address common suspension issues such as excessive body roll, poor load handling, and reduced ride comfort in these specific vehicle models.

Common Suspension Issues Addressed

• Improves load handling under heavy or variable weight conditions
• Reduces suspension wear caused by road debris with dust shield protection
• Minimizes impact damage with extended bumper stop
• Enhances ride stability and control for full-size sedans
• Prevents premature shock absorber failure in severe service environments

Installation Notes and Tips

When installing the Monroe 550055 shock absorber, ensure compatibility with the vehicle’s mounting points: loop bushing and sleeve mount on the lower end and stem mount on the upper end. Verify the mounting dimensions to match the original equipment. Use the included parts pack (P01136, P01344) for proper installation. It is recommended to replace shocks in pairs to maintain balanced suspension performance.

Quality Assurance and Warranty

Monroe manufactures the Magnum Severe Service Load Adjusting Shock Absorber 550055 to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Monroe products typically come with a limited warranty covering defects in materials and workmanship. Consult the product packaging or Monroe’s official documentation for exact warranty terms.