Dexstar may make the size I think you are looking for. But you said 4 lug on a 9" circle. On a 13" rim, a 9" circle is only 2" in from the tire bead. Is that 9" the bolt lug circle?
See here. Open the product brochure and search for the 13"
Dexstar Wheel - Trailer Rims and Wheels
The offer 4 bolt on a 4.0" BC or a 4.5" BC in the catalog. And they have different wheel widths and ratings.
Etrailer sells the Dextar brand. https://www.etrailer.com/s.aspx?qry=Dexstar+13+Wheel
It does look like they are selling a "Vintage" 13" Dexstar wheel on a 9.44" bolt circle. By the price, hoping you have the newer looking style as the vintage is a lot more pricey.
I have bought new Dexstar rims from Etrailer in the past. The last one only 1 year ago. Dexstar was still made in the USA on all the ones I received. And the quality is very good in my opinion.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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