The Monroe Magnum Rear and Front 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 multi-position Magnum shock covering specialty coach, on-highway, and severe-duty applications, this unit 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 6900XD (2002-2023, rear); International 9800 SBA (1996-1999, rear); Safari Motor Coach M Series Blue Max (1995-2000, rear); Safari Motor Coach Magnum Bluestreak (1993-1999, rear). Cross References:International Harvester (IHC): 2029200C91, Hendrickson: 59483000, Hendrickson: 60665005, Hendrickson: 60670007, Workhorse: W8007000, Freightliner: 1615676000, General Motors: 12474916, General Motors: 15012820, Blue Bird: 15222, Navistar: 2029200C91, Bilstein: 24020930, Sachs: 311635, Sachs: 315398, Sachs: 315613, Sachs: 410068, Sachs: 471700000436, Sachs: 471700000459, Hendrickson: 4790226, Gold Shock Absorber: 5001267, Monroe Shocks & Struts: 557027, Hendrickson: 579054, Hendrickson: 594830, Hendrickson: 598514, Hendrickson: 606655, Hendrickson: 6066560, Hendrickson: 606707, NAPA Shocks: 65478, Gold Shock Absorber: 8180172, Gabriel: 85058, Koni: 881704, Gabriel: 89431, Neway: 90045277, Gold Shock Absorber: 9180193, Bilstein: B451868, Bilstein: B462093, FCS: F347198, FCS: F347315, Bilstein: F4B462093M1, Bulldog HD: HD12150115, Meritor: M85030, Meritor: M89440, Dayton Parts: 441850585478, Navistar: 4164155C1, Navistar: 4070336C1, Hendrickson: 60670007L, Pierce Mfg Inc: 405348, H60670-007, H60670007 .doc-card{display:flex;flex-direction:column;width:140px;border:0.5px solid #d0d0d0;border-radius:8px;overflow:hidden;background:#fff;} .doc-card:hover{border-color:#999;} .doc-card img{width:100%;display:block;aspect-ratio:3/4;object-fit:cover;background:#f5f5f5;} .doc-card-placeholder{width:100%;aspect-ratio:3/4;background:#f5f5f5;display:flex;align-items:center;justify-content:center;} .doc-card-body{padding:8px 10px 10px;border-top:0.5px solid #e0e0e0;} .doc-card-title{font-size:12px;font-weight:500;color:#111;text-align:center;line-height:1.4;margin:0;font-family:sans-serif;} .doc-card-link{text-decoration:none;color:inherit;display:block;} .doc-card-link:hover .doc-card-title{color:#1a6eb5;} Installation Manual Safety Data Sheet Safety Data Sheet 2