Billet Proof Designs

Billet Proof® Hose Style External Fuel Gauge for Gas Tank - Clear Hose w/ Aluminum 1/8” Stepped Flanged Tophat Bung and Nickel Plated Hardware

Billet Proof®Hose Style External Fuel Gauge for Gas Tank - Yellow Tygon Hose w/ Flush Mount Steel Bung and Nickel Plated Hose Barbs

Billet Proof® Hose Style External Fuel Gauge for Gas Tank - Clear Hose w/ Flush Mount Steel Bung and Nickel Plated Hose Barbs

Rocker Box Oil Pressure Gauge Mounting Kit for 1984-1999 Harley Big Twin Evolution Engines on Touring, Dyna, FXR & Softail Models - Comes with Chrome 1/8" NPT Fittings & a Polished Stainless Steel Gauge Mount

1/8” NPT Oil Pressure Gauge Adapter - Chrome, For 1970-1999 Harley Davidson Big Twin Case, Made In The USA

Oil Pressure Gauge Adaptor - Chrome - For 1936-1969 Harley Davidson Big Twin Case - 1/8" NPT Fitting - Made In The USA

Chrome Bayonet CAM Style Vented Gas Cap for 1936-1973 Harley Davidson Models - Replaces HD 61103-36

Billet Proof Designs Hydro Clutch - Hydraulic Clutch Conversion Kit - For 1971-1984 Harley-Davidson Sportster XL Ironhead - Made in USA

Billet Proof® Blind Top Hat Bung – 5/16”-18 Internal Thread – Great for Mounting a Gas Tank or Oil Bag - Mild Steel - Made In The USA

Billet Proof® Brass Gas Cap w/ Aluminum Stepped Flanged Tophat Bung

Vented or Non-Vented Gas Cap with Steel Stepped Flanged "Tophat" Bung - Brass

Billet Proof® Sight Glass Style External Fuel Gauge with Aluminum 3/4” NPT Stepped Flanged Tophat Bung