Whether you have an early model truck with cast spoke (Dayton) wheels or a brand new truck with steel disc wheels, these covers fit them all.

Universal Simulator Styles

Premounted Lug Nut Covers

Premounted Lug Nut Covers

Universal Integrated Lug Nut Covers

Integrated Lug Nut Covers

Universal Simulators - No Lug Nuts

No Lug Nut Covers

Universal Simulator with Optional Wing Nut Center Piece

Optional Wing Nut Center Piece

Universal Simulator Features

dump truck

uni-semi

Truly Universal for any wheel.

  • Available in sizes to fit 20” & 22.5” and 22” & 24.5”.
  • High-quality, non-magnetic 304L stainless steel—will not rust, pit, corrode or turn yellow.
  • Easy care and low maintenance for years to come.

Made in USA, Lifetime Guarantee, Mirror Shine Finish

Cast Spoke Wheels Before & After

Cast Spoke Wheels
Before and After

Integrated Lug Nuts Feature

With our Integrated Lug Nut Cover Design, you get the styling of lug nuts, yet cleaning is a snap since you don’t have the full lug nut cover to wash around.

Mounting

Universal Simulators are for cast spoke (Dayton) or steel disc wheels. Truly Universal for any wheel. Center mount system makes installation simple and D.O.T. inspections easy.

Center Mount

Center Mount

20″/22.5″ Front Universal Simulators (6 axle bolts, center mount bracket)

Model Number Bracket Feature Style Extension Kits
RW1121K-34C Center Caps Smooth (no ext.)
RW1121K-34W Wing Nuts Smooth (no ext.)
RW1121BK-34C Center Caps Integrated Lugs (no ext.)
RW1121BK-34W Wing Nuts Integrated Lugs (no ext.)
RW1121LK-34C Center Caps Premounted Lug Nut Covers (no ext.)
RW1121LK-34W Wing Nuts Premounted Lug Nut Covers (no ext.)

20″/22.5″ Rear Drive Axle Universal Simulators (8 axle bolts, center mount bracket)

Model Number Bracket Feature Style Extension Kits
RW1021K-UC Center Caps Smooth (no ext.)
RW1021K-UW Wing Nuts Smooth (no ext.)
RW1021XK-UC Center Caps Smooth RW1258
RW1021XK-UW Wing Nuts Smooth RW1258
RW1021BK-UC Center Caps Integrated Lugs (no ext.)
RW1021BK-UW Wing Nuts Integrated Lugs (no ext.)
RW1021BXK-UC Center Caps Integrated Lugs RW1258
RW1021BXK-UW Wing Nuts Integrated Lugs RW1258
RW1021LK-UC Center Caps Premounted Lug Nut Covers (no ext.)
RW1021LK-UW Wing Nuts Premounted Lug Nut Covers (no ext.)
RW1021LXK-UC Center Caps Premounted Lug Nut Covers RW1258
RW1021LXK-UW Wing Nuts Premounted Lug Nut Covers RW1258

20″/22.5″ Rear Trailer Axle Universal Simulators (6 axle bolts, center mount bracket)

Model Number Bracket Feature Style Extension Kits
RW1021K-510C Center Caps Smooth (no ext.)
RW1021K-510W Wing Nuts Smooth (no ext.)
RW1021XK-510C Center Caps Smooth RW1258
RW1021XK-510W Wing Nuts Smooth RW1258
RW1021BK-510C Center Caps Integrated Lugs (no ext.)
RW1021BK-510W Wing Nuts Integrated Lugs (no ext.)
RW1021BXK-510C Center Caps Integrated Lugs RW1258
RW1021BXK-510W Wing Nuts Integrated Lugs RW1258
RW1021LK-510C Center Caps Premounted Lug Nut Covers (no ext.)
RW1021LK-510W Wing Nuts Premounted Lug Nut Covers (no ext.)
RW1021LXK-510C Center Caps Premounted Lug Nut Covers RW1258
RW1021LXK-510W Wing Nuts Premounted Lug Nut Covers RW1258

24.5″ Front Universal Simulators (6 axle bolts, center mount bracket)

Model Number Bracket Feature Style Extension Kits
RW1123K-34C Center Caps Smooth (no ext.)
RW1123K-34W Wing Nuts Smooth (no ext.)
RW1123BK-34C Center Caps Integrated Lugs (no ext.)
RW1123BK-34W Wing Nuts Integrated Lugs (no ext.)
RW1123LK-34C Center Caps Premounted Lug Nut Covers (no ext.)
RW1123LK-34W Wing Nuts Premounted Lug Nut Covers (no ext.)

24.5″ Rear Drive Axle Universal Simulators (8 axle bolts, center mount bracket)

Model Number Bracket Feature Style Extension Kits
RW1023K-UC Center Caps Smooth (no ext.)
RW1023K-UW Wing Nuts Smooth (no ext.)
RW1023XK-UC Center Caps Smooth RW1258
RW1023XK-UW Wing Nuts Smooth RW1258
RW1023BK-UC Center Caps Integrated Lugs (no ext.)
RW1023BK-UW Wing Nuts Integrated Lugs (no ext.)
RW1023BXK-UC Center Caps Integrated Lugs RW1258
RW1023BXK-UW Wing Nuts Integrated Lugs RW1258
RW1023LK-UC Center Caps Premounted Lug Nut Covers (no ext.)
RW1023LK-UW Wing Nuts Premounted Lug Nut Covers (no ext.)
RW1023LXK-UC Center Caps Premounted Lug Nut Covers RW1258
RW1023LXK-UW Wing Nuts Premounted Lug Nut Covers RW1258

24.5″ Rear Trailer Axle Universal Simulators (6 axle bolts, center mount bracket)

Model Number Bracket Feature Style Extension Kits
RW1023K-510C Center Caps Smooth (no ext.)
RW1023K-510W Wing Nuts Smooth (no ext.)
RW1023XK-510C Center Caps Smooth RW1258
RW1023XK-510W Wing Nuts Smooth RW1258
RW1023BK-510C Center Caps Integrated Lugs (no ext.)
RW1023BK-510W Wing Nuts Integrated Lugs (no ext.)
RW1023BXK-510C Center Caps Integrated Lugs RW1258
RW1023BXK-510W Wing Nuts Integrated Lugs RW1258
RW1023LK-510C Center Caps Premounted Lug Nut Covers (no ext.)
RW1023LK-510W Wing Nuts Premounted Lug Nut Covers (no ext.)
RW1023LXK-510C Center Caps Premounted Lug Nut Covers RW1258
RW1023LXK-510W Wing Nuts Premounted Lug Nut Covers RW1258