They hold up to the daily rigors of the average 21st century S

Length: +4 inches extended over stock length

Black oxide finish 12 point 1/4-20 thread fits Big Twins 1976-up

Machined out of solid brass

add a carburetor support bracket and breather bolts (available in black

Pop Top Oil Pressure Indicator Bung Type_Coped They hold up to theFor a minimalist alternative to a traditional oil pressure gauge or indicator light, the FNA Pop Top provides a clean, mechanical method to visually confirm your engine has oil pressure. It installs directly into a standard 1 8" NPT port. Operation: The plunger extends approximately 1 2" at around 30psi to indicate sufficient oil pressure. Fitment: Installs in any standard 1 8" NPT oil pressure port. Construction: Polished stainless steel. Made in the