Monroe 5988 Shock Absorber - Rear

Monroe OESpectrum Shock Absorber for BMW 320i, 323i, 328i

The Monroe OESpectrum Passenger Car Shock Absorber part number 5988 is engineered to provide precise suspension control for BMW 320i, 323i, and 328i models. Designed to restore original handling and ride comfort, this shock absorber meets exacting specifications for a reliable replacement.

• Compressed length: 14.375 inches
• Travel length: 9.75 inches
• Extended length: 24.125 inches
• Upper mounting type: Stem mount with M10 thread pitch
• Lower mounting type: Loop bushing and sleeve mount (12mm sleeve ID x 1.9/16" sleeve OAL)
• Includes extended bumper stop for added durability
• Dust shield not included

About the OESpectrum Passenger Car Shock Absorber Line

The Monroe OESpectrum Passenger Car Shock Absorber line is designed to deliver a balance of comfort and control by using advanced valving technology. This product line focuses on providing consistent damping performance that closely matches original equipment specifications, making it suitable for drivers seeking to maintain the handling characteristics of their BMW 320i, 323i, or 328i. Part number 5988 is a direct replacement that supports the suspension geometry and ride quality expected from the original design.

Product Details and Specifications

This suspension shock absorber features a compressed length of 14.375 inches and a travel length of 9.75 inches, allowing for effective absorption of road irregularities. The extended length measures 24.125 inches, accommodating the full range of suspension movement. 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 12mm sleeve inner diameter and 1.9/16 inch outer sleeve length. The inclusion of an extended bumper stop enhances durability by protecting the shock absorber during full extension. Note that this model does not include a dust shield or compressed bumper stop.

Common Applications and Problem Solving

• Restores original ride comfort and handling for BMW 320i, 323i, and 328i
• Reduces excessive bouncing and body roll
• Improves vehicle stability during cornering and braking
• Addresses noise and vibration issues caused by worn shocks
• Prevents premature tire wear due to suspension imbalance

Installation Notes and Tips

• Verify compatibility with BMW 320i, 323i, or 328i before installation
• Ensure proper torque specifications for stem mount and loop bushing connections
• Inspect mounting hardware and replace if worn or damaged
• Check suspension alignment after installation for optimal performance
• Use appropriate tools to avoid damage to the M10 threaded stem

Quality Assurance and Warranty

Monroe OESpectrum shock absorbers are manufactured to meet or exceed OEM standards, ensuring consistent performance and durability. Part number 5988 comes with a quality assurance guarantee backed by Monroe's manufacturing processes. Please refer to Monroe's official warranty policy for specific coverage details.