3.5" BILLET ALUMINUM Oil Cap Fit Dexter 21-88 Trailer Axle bearing hub 10K 9-123 (21-88 Billet-KIT)

Billet Aluminum machined 3.5" Oil Bath CapReplaces Dexter 21-88 Oil caps Part Number: 21-88 Billet-KIT The LAST OIL CAP you will ever buy!Machined out of solid billet aluminum!Practically Indestructible! This fits the very common DEXTER 10,000# General Duty Axles made After July 2009.The drum casting numbers will be 9-123 or 8-415 only.If you have ever broken those clear plastic oil caps, this is your solution! they can not be broken,And they look SHARP! (especially if you have aluminum wheels! Aluminum Fits Dexter To check the oil level, just stick your finger in the hole! Comes with new rubber O ring, and new rubber plug. This kit contains: 1x 21-88 Billet Cap 1x 046-032-00 1x 010-163-00 This oil cap is a replacement for oil caps that are commonly found on 8-415 Oil Bath Drums Made After July 2009 and 8-430 hubs with 9-123 drums made After April 2009 Solid Billet Aluminum  Fits Dexter Axles  3.5" Thread OD  12 Thread  9k to 10k  Features: - Fits Drum Number 8-415 (After