The Bendix K058715 is a Type-20 S-Cam service brake chamber designed for air brake systems on heavy-duty trucks. This unit features a fully threaded pushrod, welded clevis, and standard yoke configuration. The pushrod measures 2.25 in. with a 5/8-18 NF thread, and the inlet port is 3/8-18 NPTF. Stroke is 2.50 in., consistent with a T-20 service chamber. Dimensions measure 8.58 in. x 8.58 in. x 5.71 in. Call us to confirm proper fit for your application.Interchanges:1621901BXK058715HDX-SC20LCWK025490MGM1621901SC20LCWZAJ1621901A factory handling fee of $20.00 per unit is added at checkout.FeaturesType-20 S-Cam service brake chamber2.50 in. stroke length2.25 in. fully threaded pushrod, 5/8-18 NF threadWelded clevis with standard yoke3/8-18 NPTF inlet portTech SpecsChamber Type: Type-20 (T-20) S-Cam Service ChamberStroke: 2.50 in.Pushrod Length: 2.25 in.Pushrod Thread: 5/8-18 NFPushrod Style: Fully Threaded with Welded ClevisYoke Style: Standard YokeInlet Port: 3/8-18 NPTFDimensions (H x W x L): 8.58 in. x 8.58 in. x 5.71 in.