Pioneer Heavy Duty Parts

Jost....Holland....Fontaine....Simplex




We know fifth wheels!..We stock fifth wheels!..We carry fifth wheel parts!

We stock top plates, air sliders, base plates, repair kits and individual components for these fifth wheel brands. And, we can indentify and help you figure out what you need.

fifth wheel

To determine what type of fifth wheel you have or need, here's what you should condsider:

Fifth Wheel

This base is typical of an air slide, outboard mount.
(Outboard mounts have mounting angles on the outside of the truck frame. Inboard mounts have angles over the frame rails.)

Fifth Wheel

This stationary foot is usually bolted to a corrugated plate.




Height: Measure distance from top of frame to top of fifth wheel.

More fifth wheel info:

Fifth Wheel Holland Fifth Wheel Catalog
(includes Simplex)


Fifth Wheel Fontaine Fifth Wheel Catalog




Fifth Wheel Jost Fifth Wheel Catalog