The Mittler Bros. 2-1/2″ Aluminum Fill Cap is a replacement aluminum fill cap for the 2-1/2″ steel weld bung assembly used as a filler cap on rear-end housings, weight bars, and other fabricated components. The cap threads directly into the welded steel bung to seal the fill opening.
A simple, clean, and professional finishing touch for any rear-end housing build or custom fabrication project. Pick this up when the original cap has been lost, stripped, or damaged — or keep a spare on the shelf. Made in the USA.
