How to Choose Correct Replacement 12 Inch Wheel For Boat Trailer

Updated 12/29/2025 | Published 11/03/2024

Products Featured in This Question

Steel Spoke Trailer Wheel - 12" x 4" Rim - 4 on 4 - Galvanized Finish

(770)

$47.17

Steel Spoke Trailer Wheel - 12" x 4" Rim - 5 on 4-1/2 - Galvanized Finish

(770)

$52.43

Question:

Good afternoon, I am looking for a replacement wheel for a 2023 Triton 1-Place LTWCI-X trailer: 08875 ST145/R12E Please advise

asked by: Alexander K

Expert Reply:

Hi Alexander,

I can help you figure out a replacement, but we have no way of knowing what wheel is on any specific trailer, and can't do anything with a VIN (as we don't have a database or anything to enter a VIN). I was able to find it had a 12 inch wheel though, so really all you need to know is your wheel bolt pattern, and then you can choose which wheel you want. It'll be either 4 on 4" or 5 on 4-1/2" and I've added links below to a help article on measuring your wheel bolt pattern and printable template which you can also use.

For example, if you have a 4 on 4" bolt pattern you can use the Americana Wheel # AM20124, or if you have a 5 on 4-1/2" bolt pattern you can use part # AM20134.

I've also added a link below to our entire selection of 12 inch trailer wheels for you.

expert reply by: Kyle S

Bud M.

12/15/2025

Hey Alexander, what did you find out when you measured the bolt pattern on your Triton trailer wheel? Once you confirmed that, were you able to pick between the 4 on 4 and 5 on 4-1/2 options? Your update could make it easier for the next person replacing a similar wheel.

Alexander K.

12/28/2025

@BudM Hi, When you couldn't recommend the wheel, I posted my trailer info online. I immediately got several recommendations. I purchased the wheel the same day. Happy since.

Kate F.

12/29/2025

@AlexanderK I am glad you were able to find the exact match Alexander! I just looked up your wheel and tire, should have been a 5 on 4 1/2" bolt pattern (pretty common for boat trailers my Ranger has the same), with a ST145/R12 Load Range E tire. We don't carry the exact match, for that I apologize. All that matters is that we can get out boats out to water! I hope 2026 brings you many tight lines =)