DEXTER REPLACEMENT OIL CAP, THREADED, CLEAR, 9K-15K 3.984" O.D

Features:

Replaces Dexter 21-36 oil cap

Fits:
9,000-lb Axles manufactured from October 1989 to July 2009
10,000-lb Axles manufactured prior to July 2009
12,000-lb and 15,000-lb Heavy-duty axles

Specs:

Dimensions:
Overall diameter: 4.36"
Threaded diameter: 3.97"
Inside diameter: 3.59"