The Monroe® Magnum® Rear 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, replacing worn-out units with Magnum® shocks helps reduce excessive vibration.

Purpose-built for class 3-6 commercial trucks, the Magnum delivers reliable rear suspension performance across Isuzu NPR/NPR-HD/NPR-XD/NQR/NRR, Chevrolet LCF, and GMC Forward platforms.

• FOR HARDWORKING COMMERCIAL VEHICLES: Designed to handle high mileage and severe use class 3-6 trucks and buses.
• CONSISTENT RIDE: All-weather fluid handles extreme temperatures; 2-in. or 2-1/4-in. reserve tube holds more fluid (when required).
• EXCEPTIONAL HANDLING: 10-Stage valving tuned to each vehicle; larger 1-3/8-in. bore for consistent, smooth ride (most applications).
• STRONG AND DURABLE: Shouldered and bonded bushings protect from bushing walkout; arc welds up to 360° for durability.
• BUILT TO LAST: Robust 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 long-lasting durability (most applications).
• REDUCED NOISE, VIBRATION AND HARSHNESS: Exceptional control isolating NVH under most driving conditions.
• IMPROVES PERFORMANCE: Nitrogen gas-charge reduces aeration and shock fade.
• BUY WITH CONFIDENCE: Comes with Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.

Common Fits: Compatible with rear suspension on 1986-2024 Isuzu NPR, NPR-HD, and NPR-XD, 2000-2024 Isuzu NQR, 2005-2025 Isuzu NRR, 2016-2024 Chevrolet LCF 3500/4500/5500 HD and XD variants, 1988-2010 GMC W5500 Forward, and 2005-2009 Isuzu FTR.

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Cross References:
Chevrolet: 8972536510, Chevrolet: 8972536650, Chevrolet: 8983439850, Chevrolet: 97253664, Chevrolet: 98343985, GMC: 97253664, Isuzu: 8972536510, Isuzu: 8972536640, Isuzu: 8972536650, Isuzu: 8972536651, Isuzu: 8980980580, Isuzu: 8980980581, Isuzu: 8980980591, Isuzu: 8983162270, Isuzu: 8983439850, Isuzu: 8983439860, Isuzu: 97253664, PRT HD: 170262, Navistar: 308646C91, KYB: 345605, Neway: 57366618, Monroe Shocks & Struts: 660183, Mack: 660183, Mack: 660183MT, Monroe Shocks & Struts: 661183, NAPA Shocks: 66618, Gold Shock Absorber: 8160116, Gold Shock Absorber: 8180259, Gabriel: 83159, Gabriel: 83404, Isuzu: 8516306660, Isuzu: 8971166500, Isuzu: 8972536512, Isuzu: 8980980590, Isuzu: 8983162280, Isuzu: 8983807460, Isuzu: 8983807470, Gold Shock Absorber: 9160406, General Motors: 94033786, Navistar: 9516306660, General Motors: 97175126, General Motors: 97253664, General Motors: 98343985, Navistar: AMS660183, FCS: F347226, Bulldog HD: HD12140571, KYB: KG6198, KYB: KG6199, Meritor: MG60128, KYB: 345609, Mack: 9160406, General Motors: 98098058, GMC: 98098058, GMC: 94033786, GMC: 97175126, GMC: 97253651, GMC: 97253665, GMC: 98098059, GMC: 98316227, GMC: 98343985, GMC: 98343986, Isuzu: 97253651, Isuzu: 97253665, Isuzu: 98098058, Isuzu: 98098059, Isuzu: 98316227, Isuzu: 98343986, 66618

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