Oil Cap 10K-16K ALKO HAYES AXLE 21-37 SEE NOTE IN DESCRIPTION

Oil Cap 10K-16K 21-37
4" OD. Same As Automann 180.RG04250, Dexter 021-219-00, Dexter K71-859-00, K568220, Redneck 92125, Quality 12011-1. NOT THE SAME AS THE OLD DEXTER HUBCAPS WITH 21-37 PRINTED ON IT....THREAD PITCH IS DIFFERENT. THIS IS FOR. Sirco 21-37