Do All Small Utility Trailers Have the Same Center Bore Measurement For Their Wheels

Updated 06/30/2023 | Published 06/29/2023

Products Featured in This Question

Loadstar ST175/80D13 Bias Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C

(7534)

$124.87

4" Carbon Fiber Digital Caliper

(26)

$12.13

Question:

Are the center bore measurements the same on all small utility trailers? The one in my cart is 3.19 inch. Item AM3S160. Thanks

asked by: Scott F

Expert Reply:

No, the center bore measurements on all small utility trailers will not be the same. There are a number of factors that can play a role. That being said, if the correct tire and wheel size for your trailer is a 13" wheel, with a 5 on 4-1/2 bolt pattern and ST175/80D13 tires like the # AM3S160 you mentioned, then the 3.19" bore is almost certainly correct. All of the bias tires with that size wheel and bolt-pattern that we carry have the same 3.19" pilot hole.

The only way to be 100% certain would be to measure your center bore. The easiest way to do that is using a set of digital calipers like the # PTW80157.

expert reply by: Scott S