How to Measure a Trailer Wheel Pilot Hole to Choose a Replacement Center Cap
Question:
I have lost one of the wheel center caps on our horse trailer and want to buy a replacement. However, I have no idea what pilot size means or how to measure for it. what do I need to know to order the correct cap? thanks so much. My daughter has the trailer at college, so if I need to know the tire type/size, I recently ordered a spare from you...can you look up the tire info from your records?
asked by: Toni L
Expert Reply:
The pilot hole on a wheel is the big center hole right in the middle of the wheel. It fits over the hub.. It can be tough to measure these with the wheel still on the trailer so you will want to remove the wheel and then it will be easier to measure. The best way to measure it would be to use digital or dial calipers.
I can look up the tire you previously ordered, # AM10256, but since the wheels that the tire fits could have different size pilot holes I cannot go by the tire size alone. I really do need that measurement on the actual wheel. It is likely to be 3.19 inches of 4.27 inches but could be different.
Once you do know the measurement you can look through the caps, see link, to find one that will fit. Or tell me the measurement and I can make some recommendations.
Products Referenced in This Question
Karrier ST225/75R15 Radial Trailer Tire - Load Range D
- Trailer Tires and Wheels
- Tire Only
- Radial Tire
- Load Range D
- 225/75-15
- 15 Inch
- M - 81 mph
- Kenda
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Vesper Steel Dual Trailer Wheel - 16" x 6" - 8 on 6-1/2 - 4.88" Pilot - Silver
- Search Results: spare tire carrier
- Shop: Kodiak Disc Brake Kit - 11.35" Rotor - #120 Spindle - 12K - ALKO
- Article: Trailer Tire Sizing
- Shop: Bumper Spare Tire Mount - U-Bolt Mount
- Shop: Spare Tire Cover
- Q&A: How to Determine the Correct Pilot Hole Diameter for Wheels on a Puma 23FB Travel Trailer
- Shop: Roadmaster Hitch Spare Tire Mount with 2" Receiver Opening - 2" Hitches
- Q&A: How to Determine Needed Pilot Diameter of Steel Dual Trailer Wheel
- Shop: Trailer Hitch
- Search Results: 23b
- Shop: Dexstar Dual Wheel with Offset - 16 x 6 Rim - 8 on 6.5
- Shop: Provider ST235/85R16 Radial Tire w/ 16" Vesper Silver Dual Wheel - Offset - 8 on 6-1/2 - LR G
- Video: Review of Maxion Wheels Trailer Tires and Wheels - Wheel Only - MX89FR
- Q&A: Trailer Tire and Dual Wheel Recommendation for 10K Dexter Axle
- Shop: Hydrastar Electric Over Hydraulic Actuator Kit for Disc Brakes - 1,600 psi
- Video: Review of Kenda Trailer Tires and Wheels - Tire Only - AM1HP56
- Search Results: 530~12
- Search Results: disc brake kit
- Search Results: 9579~01
- Q&A: Replacement Wheel For a 2020 Jayco Redhawk 31F On a 2019 Ford E-450 Chassis
- Search Results: roadmaster tire carrier
- Q&A: Can Trailer Wheels be Used on a Passenger Vehicle
- Search Results: roadmaster 195225
- Shop: Trailer Wiring
- Article: RV Cell Boosters, How Do They Work?
- Video: Review of Dexstar Trailer Tires and Wheels - Wheel Only - AM20783
- Q&A: Replacement 8-Inch Trailer Wheels With 5-on-4-1/2-Inch Bolt Pattern
- Q&A: Can the Roadmaster Hitch Mounted Spare Tire Carrier # RM-195225 be Used with a Tow Dolly
- Video: Review of Kodiak Trailer Brakes - Disc Brakes - K2R1058D11DAC