Westin Pro Traxx Oval Step Bars - 4 in OD - Black - Super Cab - Ford Fullsize Truck 2015 HVHSS4500-1.1AL Set an rpm limit with

Set an rpm limit with two rotary dials in 100 rpm increments

Billet aluminum Y-block is commonly used when connecting inline or remote electric water pumps to AN block adapters

The vacuum port is a 1/8" hose barb

1991-1995 GMC C3500HD

Westin Pro Traxx Oval Step Bars - 4 in OD - Black - Super Cab - Ford Fullsize Truck 2015 HVHSS4500-1.1AL Set an rpm limit withWestins Pro Traxx 4 Oval Nerf Step Bars feature a 4" oval tube with a heavy duty step pad that provides a wider and more secure step area. They feature 30 factory style bends that have seamless domed ends so there are no end caps or exposed bolt heads. Applications are bolt on installation. Product Description: Step Bars Pro Traxx Oval 4 in OD Mount Kit Included Steel Black Powder Coat Super Cab Ford Fullsize Truck 2015 Westin Automotive Products,