The Monroe® Magnum® Rear Suspension Shock Absorber for class 6-8 vehicles is the first gas-charged, large-bore shock for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today's heavy-duty truck suspension systems.

A direct-fit rear replacement for the Western Star 3800, the Magnum is backed by Monroe's 90-day Risk Free Ride Offer and Limited Commercial Warranty.

• For Hardworking Commercial Vehicles: Designed for high mileage and severe use class 6-8 trucks and buses.
• Consistent Ride: All-weather fluid with special additives handles extreme temperatures; larger 2-3/8-in. reserve tube holds more fluid (most applications).
• Exceptional Handling: 10-Stage valving tuned per vehicle; larger 1-3/4-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: Exceptional control isolating 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: Western Star 3800 (1989-2001). Rear position.

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Cross References:
Chevrolet: 12474917, GMC: 12474917, Western Star: 4790213, Western Star: 479028, Batco: 1083202, Batco: 1085005, Watson & Chalin: 12128, General Motors: 12474917, Mack: 14QK372M3, Mack: 14QK392M, Reyco Granning: 1735801, Reyco Granning: 1740301, Reyco Granning: 1740801, Reyco Granning: 1816401, Great Dane Trailers: 1816401, Navistar: 2029200C91, Reyco Granning: 2149701, General Motors: 22002293, General Motors: 22007701, General Motors: 22012095, General Motors: 22012166, Monroe Shocks & Struts: 3036, Autocar LLC: 31106460, Sachs: 315542, General Motors: 3171462, Sachs: 317774, General Motors: 3192890, Western Star: 350664413, Marmon: 3711, Volvo GM Heavy Truck: 3919902, Volvo GM Heavy Truck: 3919957, Sachs: 410058, Western Star: 47894, Freightliner: 47902013, Ford: 4790213, Hendrickson: 4790222, Hendrickson: 479023, Ford: 479028, General Motors: 4940602, General Motors: 4940606, General Motors: 4940659, General Motors: 4940662, General Motors: 4940667, General Motors: 4975497, ACDelco: 50830, Fruehauf: 5116117, General Motors: 5334401, Neway: 57306833, Hendrickson: 573243, Hendrickson: 573248, Neway: 57365412, Neway: 57366833, Marmon: 576451, Marmon: 57654, Gabriel: 59020, Gabriel: 59040, Monroe Shocks & Struts: 650412, Mack: 650412, Mack: 650412MT, Gabriel: 651116, Kenworth: 65118, NAPA Shocks: 65412, Gabriel: 665115, Kenworth: 665118, Peterbilt: 665133, Gabriel: 665533, Watson & Chalin: 665727, Gabriel: 727602, Gabriel: 727619, Gabriel: 728617, Gold Shock Absorber: 8150372, Gillig: 8201878, Gabriel: 83122, Gabriel: 83202, Gabriel: 83218, Koni: 881458, Koni: 881458SP1, Koni: 881458SP2, Koni: 885163, Country Coach: 89406, Neway: 90044001, Lodal: 9960257, Hendrickson: A20887, Turner: A2230, Hendrickson: A2230, Navistar: AMS650412, Neway: AR134C, Ridewell Corp: AS3069B, Ridewell Corp: AS575B, Motorcraft: AX97A, Motorcraft: CAX833, Euclid: E83202, Euclid: E83218, Euclid: E85005, KYB: KG6004, KYB: KG6008A, Nuturn/leland: L57645, Nuturn/leland: L59040, Euclid: M83122, Euclid: M89406, Hendrickson: S20887, Ridewell Corp: S3069B, Fruehauf: UCE93391, Fruehauf: UCE9399001, Fruehauf: UCE93991, Gillig: 1085005, Dayton Parts: 44183122, GMC: 22007701, GMC: 22002293, GMC: 22012095, GMC: 22012166, GMC: 3171462, GMC: 3192890, GMC: 4940602, GMC: 4940606, GMC: 4940659, GMC: 4940662, GMC: 4940667, GMC: 4975497, GMC: 5334401, 65412

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