Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Veeder-Root · Probes & Sensors
777717-520
In stock · ships from Knoxville
The Veeder-Root 777717-520 is a mechanical hubodometer that mounts to a wheel hub to track mileage on commercial trailers and trucks.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Mechanical hubodometer with a 520 revolutions-per-mile ratio. Must match the tire rolling circumference on the axle where it is installed. Fits most standard axle end hubs on heavy‑duty trailers and trucks using the specified tire sizes.
Part data verified against 4 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It counts distance traveled based on wheel revolutions and is calibrated for 295/75R22.5 standard tread and 275/80R22.5 low tread tires. The hermetically sealed, die-cast zinc housing is filled with inert gas and protected by double O-rings, making it resistant to moisture, dust, and shock. You replace it when the old unit fails or readings become inaccurate, ensuring precise maintenance, leasing, and compliance records.
Part Number: 777717-520
HUBOMETER 295/75R22.5
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
