Mazda Rotary Oil Filler Tube with BreatherFranklin Engineering Limited is proud to manufacture billet aluminium oil filler tubes for Mazda rotary engines. CNC Machined from high quality 6061 aluminium, these oil filler tubes replace the standard metal filler which sticks up high in the engine bay. They fit straight into the 29mm hole in the centre plate. Suits standard Mazda oil cap and most aftermarket oil caps, including our own billet rotor shaped caps. The filler necks have a 1 2" NPT

Upgrade the look of your engine bay by removing your VCT cam gear and replacing the solenoid with our precision-engineered VCT solenoid delete plug

Choose from multiple finishes

1/8” NPT port with blanking bung included

🔩 Direct Replacement Fit: Installs easily in place of the factory oil cap — no modifications required

if you order a quantity of 3

Quality USA made 38mm (1

or one of our remote filter or oil cooler kits are fitted

texture black

S13 Silvia CA18DE

cleaner wiring

Precision CNC machined at our factory in Napier

2x Copper Crush Washer