A direct-replacement idler hub assembly built for light trailer and RV axles. The Lippert 814198 arrives fully assembled with bearing cones, seals, and grease already installed -- mount it and roll. Solid iron construction and a 2,200 lb axle rating make it a reliable upgrade or like-for-like swap on a wide range of travel trailers, utility trailers, and boat trailers running a 5 on 4.5" bolt pattern.
Replacing a worn or damaged idler hub does not have to mean a trip to the shop. The Lippert 814198 comes out of the box with bearing cups pressed in place, bearing cones seated, inner and outer seals installed, and packed with grease -- so installation comes down to removing the old hub, sliding the new one onto the spindle, and securing the castle nut. No bearing press, no separate seal driver, no guesswork on grease quantity.
The hub is cast from solid iron for long-term durability under the cyclic loading that trailer wheels see on highways and rough secondary roads. The 5.5" hub flange diameter and 5 on 4.5" bolt circle match the OEM dimensions used on many Lippert, Dexter, and similar light-duty axle assemblies rated at or near 2,200 lbs per axle.
Cast solid iron construction resists cracking and deformation under sustained axle loads and road vibration.
Bearing cones, cups, inner and outer seals, and grease are installed at the factory -- no shop press required for installation.
Matches OEM wheel bolt circles common to light RV trailers, boat trailers, and utility trailers running 13" to 15" wheels.
Backed by Lippert's limited 1-year manufacturer warranty for defects in materials and workmanship.
An idler hub is used on non-braking axle positions -- typically the front axle on a tandem-axle trailer, or any axle on a single-axle trailer without brakes. Unlike a brake hub or drum, the idler hub has no internal brake hardware. It simply provides the wheel mounting face, houses the bearings that allow the hub to spin freely on the spindle, and transfers vertical and lateral loads from the wheel into the axle.
Idler hubs wear out through bearing failure, seal leakage leading to grease contamination, or physical damage from a road hazard. Because the hub and bearings are an integrated safety component, replacing the entire pre-packed assembly at once is the recommended practice rather than re-using old cups or cones.
The 814198 is designed to fit light-duty trailer axles using the following specifications:
This hub is commonly used as a replacement on Lippert-equipped travel trailers and fifth wheels, as well as trailers built with comparable Dexter-style 2,200 lb axles sharing the same spindle and bearing dimensions. Verify your existing spindle diameter and bearing part numbers before ordering if your trailer has been modified or re-axled.