Genuine Midland Haldex Camshaft brake parts P/N: CS41513, ready to ship worldwide! Call us with any questions.A factory handling fee of $25.00 per unit is added at checkout.Tech SpecsFruehauf “Propar” with 16-1/2″ Brakes1-5/8″ Diameter – 37 SplineNominal Head Dimension 1-3/8″Notes Use Bushing Kit CQ67324 – Early Design.Axle Type TrailerApplication Fruehauf “Propar”Head Type 1Hand RHA – Camshaft Length 21-1/8″B – 1st Journal Length 2-5/32″Nominal Head Dimension 1-3/8″Spline Count 37