Baby Moon Measurement Instructions (4 Nubs)

If you are replacing an existing set of baby moons, the easiest way to determine the size is to just take one baby moon hubcap off of the wheel, flip it over and measure the inside diameter of the cap. If you don't have existing moons, then use the instructions below.

* Important Note:

Instructions below are for wheels with 4 Nub center cap Hubs.

"But my Hub has 3 Nubs" Click Here

Step # 1: 3 Nubs


Measure Nub tip to Nub tip on the rim as shown in the diagram above.


Use the chart below to help you determine which size baby moon your wheel requires. These type of baby moons only come in one of the 6 sizes shown in the chart below.

8 23/32" Click Here 9 5/16" Click Here 9 3/4" Click Here 10 1/8" Baby Moon Style Click Here 50 Merc Style Click Here 10 7/8" Fits a standard 49' 50' 51' and 52' Mercury Wheel Only. Click for Merc Baby Moon Stainless Steel Moon Cap 11 5/8" - 11 3/4" Click Here Solid Stainless Steel Moon Fits all 8 lug steel wheels Ford, Chevrolet and Dodge Fits many of the Ford E-series van wheels.
"Hey Mike! But, I don't know what TYPE of baby moon wheel cover will fit my wheel. Can ya give me a hand?"
No worries! Our Baby Moon Finder will find the right baby moon for you in a few easy steps!   What Baby Moon Hubcap Will Fit My Wheel?