12 148816 Heavy Duty Trailer Air Tank O.D.:9.50 In. Specifications Axle Modification Needed No 23 X 25 X 77 Specifications Axle Modification Needed No Axle Orientation Both Bushing Color Black Bushings Included Yes Color Black End 1 Attachment Type Up Turned Eye End 2 Attachment Type Loop Grading 3 262 Helper Spring No LE End Type Bushing No Loop Leaf Quantity 3 Leaf Spring Arch Length 3 1304731 Buyers SAM Left Hand Torsion Trip Spring Replaces Boss #BAL17541 Trustworthy quality backed by team of product experts in the United States and more than a century of automotive experience This air brake air tank matches the fit and function of an original tank that is damaged or due for replacement