The Bendix 974874N is a left-hand air brake camshaft featuring a 1.5-inch, 28-spline profile designed for S-cam drum brake systems on heavy-duty trucks and trailers. The 28-spline interface provides solid engagement with the slack adjuster, and the left-hand designation is critical for correct side installation. At 12.71 inches in length, this camshaft fits applications where precise dimensional matching matters. Cross-referenced as BW974874N. Pro Gear and Transmission carries genuine Bendix brake components. Call us to confirm this camshaft is the correct fit for your axle and brake assembly before ordering.A factory handling fee of $20.00 per unit is added at checkout.FeaturesGenuine Bendix part number 974874N, also referenced as BW974874N1.5-inch diameter, 28-spline camshaft head for slack adjuster engagementLeft-hand (driver-side) orientation – verify side before ordering12.71-inch overall lengthDesigned for S-cam air drum brake systems on heavy-duty trucks and trailersTech SpecsPart Number: 974874NSpline Count: 28Spline Diameter: 1.5 in.Hand: Left HandOverall Length: 12.71 in.Brake Type: S-Cam Air Drum BrakeSold As: Each