Monroe 66653 - 60 Series Gas Magnum Shock Absorber

Description:

The Monroe^® Magnum^® Front Suspension Shock Absorber for class 3-6 vehicles is gas-charged for quicker response and a stable, more comfortable ride. Designed to handle the demands of high mileage and severe use vehicles, it replaces worn units to help reduce excessive vibration.

Purpose-built for medium-duty cab-over and conventional trucks including Isuzu N-Series and Chevrolet LCF platforms, the Magnum delivers 10-stage vehicle-specific valving and is backed by Monroe's 90-day Risk Free Ride Offer.

• For Hardworking Commercial Vehicles: Designed for high mileage and severe use class 3-6 trucks and buses.
• Consistent Ride: All-weather fluid with special additives handles extreme temperatures; 2-in. or 2-1/4-in. reserve tube holds more fluid (when required).
• Exceptional Handling: 10-Stage valving tuned per vehicle; larger 1-3/8-in. bore for more efficient damping and a smoother ride (most applications).
• Strong and Durable: Shouldered and bonded bushing with sleeve prevents bushing walkout; arc welds up to 360° for durability.
• Built to Last: Hydraulic lock-out prevents over-extension of air bags and protects the seal assembly (most applications).
• Longer Service Life: PTFE-coated bearing and nitrocarburized piston rod for durability and extended service life (most applications).
• Reduced NVH: Isolates impact-related noise, vibration, and harshness under most driving conditions.
• Improves Performance: Nitrogen gas-charge maintains tire-to-road contact by reducing aeration and shock fade.
• Buy with Confidence: Comes with Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.

Common Fits: Isuzu NPR, NPR-HD, NPR-XD, NQR, NRR, and FTR (various years 1986-2024); Chevrolet LCF 3500, 4500, 4500HD, 4500XD, 5500XD, 5500HD, 5500HG, 5500XG (2016-2024); Chevrolet and GMC W4500/W5500 Tiltmaster and Forward (1987-2010). All fitments are front position.

Installation Manual

Safety Data Sheet

Safety Data Sheet 2