3-3/4" Oil Cap w/O Ring & Plug 10K-16000# Quality Rockwell Trailer Axle Bearing (RW12011-1)

One-  Rockwell  (3.75") Oil Cap Assembly for 9K-16K Rockwell DrumsIncludes rubber plug and O Ring seal!Rockwell PN: 12011-1 Rockwell American drums made after 1996 with 3.75"-8 threads.Also fits Kodiak disc brakes with this size oil cap!Includes: clear plastic cap oil cap center plug rubber o-ring 3-7/8" FOR 9K-16,000K AXLES