How to Measure a Trailer Wheel to Fit a Baby Moon Center Cap
Question:
Could you please tell us how to measure right for the baby moons for my vintage trailer ? They have small cap in the middle that covers the please where they check the grease. now smart on this Then there are the 5 lug nuts and then 3 of the outside knot things. I have ordered 2 different ones from yall and neither worked. I was told at a trailer place here I need a 14 inch set. I am confused and I probably have you confused by now. Sorry. Any help you can give me will be great. Thank you
asked by: Kathy
Expert Reply:
The measurement that you will want to take is the outer diameter of the inner ring and the outer diameter of the inner ring with one of the tabs (see photo). You will also want to count the bolt holes on the wheel and know the wheel diameter.
The Baby Moon Center Cap, # AM90086, will fit 13 inch, 14 inch, or 15 inch 5-lug conventional steel wheels. The outer diameter of the inner ring should be 9 inches and the outer diameter of the inner ring with one of the tabs should be 9-1/4 inches.
We also carry the Baby Moon Center Cap, # AM981306, for 15 inch 6-lug conventional steel wheels. The outer diameter of the inner ring of the wheel should be 10-1/8 inches and the outer diameter of the inner ring with one of the tabs should be 10-1/4 inches.

Products Referenced in This Question
Americana Baby Moon Trailer Wheel Center Cap - Chrome-Plated Steel - Qty 1
- Wheel Covers Hubcaps
- Center Wheel Caps
- Front and Rear Wheels
- 5 Lugs
- 13 Inch Wheels
- 14 Inch Wheels
- 15 Inch Wheels
- Steel
- Americana
more information >
Americana Pointed Top Baby Moon Trailer Wheel Center Cap - Chrome Plated Steel - Qty 1
- Wheel Covers Hubcaps
- Center Wheel Caps
- Front and Rear Wheels
- 6 Lugs
- 15 Inch Wheels
- Steel
- Americana
more information >
Product Page this Question was Asked From
Dexstar Conventional Steel Wheel with Offset - 15" x 6" Rim - 5 on 4-1/2 - Black
- Trailer Tires and Wheels
- Wheel Only
- 15 Inch
- 5 on 4-1/2 Inch
- Steel Wheels - Powder Coat
- Dexstar
more information >
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