from a Knucklehead to a late-model Shovelhead

12 Amp Hours (PB Eq) Dimensions and Weight

A raw polished version is also available

Big Twins 1936-69 PLAIN HEAD bolts (see P/N 9627-19 for correctly marked heads)

Aluminum Gas Filler Cap with Weld-In Steel Bung - Vented Length_2.09" from a Knucklehead to aIncludes a weld in mild steel bung made for Lowbrow Customs gas oil filler caps. Just weld in the bung, thread the cap in and go! These universal filler caps are meant to be used for gas tanks on custom motorcycles, hot rods, or anything else. Lowbrow filler caps fit the maxim 'form follows function'; they are all business. Machined out of solid aluminum, these vented caps are 1 5 16" 12 thread and the Buna N O ring seal is gas and oil resistant and