Specification Brand : Torque BulletPoint1 : QUALITY - Easy to identify part number permanently engraved on the rubber. 4.5 - 5.00 mm thick rubber that exceeds OEM requirements. 25% stronger 4140 grade steel studs. Stronger composite pistons. Highest leak test ratio after final assembly. BulletPoint2 : SPECS - Extended Height: 21.70" // Compressed Height: 7.30" // Top Plate Width: 9.00" // Piston Width: 11.06" // Weight: 11.7 lbs BulletPoint3 : REPLACEMENT FOR - Firestone W01-358-9039 // Goodyear R12-095 // Hendrickson S-2064, S-11650 // Holland (Neway) 905-57-011, 905-57-023, 905-57-085, Triangle AS-8311 // Watson & Chalin AS-0012 // Automann AB1DK23F-9039 // AS9039, HDV9039, HD9039 BulletPoint4 : WARRANTY - Thanks to our superior quality and customer service we started offering our customers industry's first 3-year unlimited mile warranty on our rolling lobe / reversible sleeve air springs. When you get your air spring, please register it through Torque Parts website. BulletPoint5 : FITMENT - Please, call your dealer and ask for the part number. Then, check out if this air bag replaces it. Or, see the diagram picture and make sure all specs match with your air bag. ***Buying an air bag by make and model is one of the most common mistakes. Please, do not buy it by make and model.*** Color : 1 Pack CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 698231588550 ExternallyAssignedProductIdentifier2 : 0698231588550 ExternallyAssignedProductIdentifier3 : 00698231588550 FinishType : Silver FitType : Vehicle Specific IncludedComponents : Air Spring ItemName : TORQUE Air Spring Bag for Hendrickson (Replaces Firestone 9039, W01-358-9039, Hendrickson S-2064, S-11650, C-2064, C-11650, Goodyear 1R12-095) (TR9039) ItemPackageDimensions_Height : 10.44 inches ItemPackageDimensions_Length : 10.24 inches ItemPackageDimensions_Width : 10.44 inches ItemPackageQuantity : 1 ItemTypeKeyword : air-springs Manufacturer : Torque Material : Stainless Steel ModelName : TR9039 ModelNumber : TR9039 NumberOfItems : 1 OeManufacturer : Firestone OemEquivalentPartNumber : W01-358-9394 PartNumber : TR9039 ProductDescription : KEY FEATURES OF TORQUE AIR SPRINGS: - Easy to identify part number permanently engraved on the rubber. - 4.5-5.00mm trick rubber that exceeds OEM requirements. - 25% stronger 4140 grade steel studs. - Stronger composite pistons. - Highest leak test ratio after final assembly.