Tough Monroe Magnum shock absorbers for transit buses deliver a firm, controlled ride for greater stability and increased driver comfort. Designed to meet or exceed demanding OE manufacturer specifications Product Features:Robust hydraulic lock-out: Prevents over-extension of the suspension, top-out of the piston and averts damage to the seal assemblyPTFE coated bearing: Reduces friction during operation between the rod and rod guide, improving durabilityTenneco shouldered bushings: Shouldered bushing and bonded bushing with sleeve designs prevent [bushing walkout] for improved quality and durability - on most applicationsLoop welding technique: Resistance weld with additional 360-degree weld to provide up to 15,000 lbs. (6,804 kg) tensile strength for maximum durability - when required1-3/4-inch (44.6 mm) Bore: Larger bore gives accessibility to finer tune the valving by allowing more hydraulic fluid to dissipate heat for better vehicle control2-3/4-inch (69.85 mm) Reserve Tube: More fluid for more consistent performance - when required23/32-inch (18 mm) diameter piston rod: Nitrocarburized design more environmentally friendly, maintaining chrome structural benefits, without effecting durability or use life of the rod. Sintered iron design allows for more precise piston dimensions, requ.05-inch Pressure tube withstanding pressure of 9KPSIAll weather fluid: Contains special modifiers to reduce frictions and ensure smooth rod reaction10-stage valving: Reacts to wide range of driving conditions - on most applicationsSingle-lip, low-friction oil seal