Monroe 65503 Suspension Shock Absorber - Front

Monroe Magnum Shock Absorber 65503

The Monroe Magnum Shock Absorber 65503 is a heavy-duty suspension shock absorber for Class 6-8 vehicles. It uses a nitrogen gas charge and a large-bore design to deliver quick response and steady control in demanding air spring and taper leaf suspension setups.

Built for high-mileage, severe-duty service, this Monroe Magnum shock absorber 65503 is engineered for consistent damping under load. It is a direct-fit suspension shock absorber for heavy truck applications that need stable ride control and durable performance.

Key Features

• Gas-charged design for fast suspension response
• Extra-large piston bore for severe-use and high-mileage operation
• Designed for air spring and taper leaf suspensions
• Metal dust shield included
• Extended hydraulic lockout for added control at full extension
• Upper and lower loop bushing & sleeve mounts with 3/4" sleeve ID and 1.3/4" sleeve OAL
• Extended length: 22.125 in; compressed length: 14.2969 in; travel length: 7.82813 in

Product Details

The Monroe Magnum Shock Absorber line is built for commercial-duty suspension systems that see frequent load changes, rough roads, and extended service intervals. Part number 65503 combines nitrogen gas pressure with a large-bore piston to help maintain consistent damping response in heavy truck suspension applications. This part cross-references Monroe Shocks & Struts (e.g., M65503) for the same application.

Compatible With heavy-duty truck suspension applications where the Monroe Magnum shock absorber 65503 is specified. Use this part when replacing a worn shock on Class 6-8 vehicles that rely on air spring or taper leaf suspension control.

What It Helps Address

• Excessive bounce after bumps or road impacts
• Reduced ride control in loaded commercial truck service
• Uneven damping response from a worn shock absorber
• Suspension instability during frequent stop-and-go operation
• Harsh or inconsistent handling on severe-duty routes

Installation Notes

Verify mount style, sleeve dimensions, and compressed/extended lengths before installation. This shock absorber uses loop bushing and sleeve mounts at both ends, so confirm the vehicle’s suspension hardware matches the listed specifications. For best results, compare the existing shock absorber dimensions and mounting points on the truck before replacement.

Quality Assurance

Monroe designs the Magnum shock absorber line for commercial suspension demands, with a gas-charged, large-bore construction intended to maintain control in heavy-duty service. Part number 65503 is built to the published dimensions and mounting configuration for the specified application.