(2) Sentinel ESP with its patented Sentinel Technology extends seal and bearing life. It reduces contaminant build-up on windows. Clean and dry hub caps make it easier to view oil levels - no more sticking your finger into the cap to determine the lube levels. Plus, cleaner looking wheel ends look well maintained. Sentinel Technology also means longer life from your wheel end oil. No more breakdown of the oil from power washers or submerged wheels.
(12) To determine the correct hubcap for mounting, count the number of mounting holes, measure diameter of bolts, measure bolt circle (select 2 holes opposite each other and measure from the center of one bolt hole to the center of the one opposite).