Mugen Formula engines, including those for Formula 1, naturally require components manufactured with high precision. Mugen meets such requirements by machining to exacting specifications at its factories. This oil filler cap are manufactured individually from aluminum at the same factories in the same way. "Formula Quality" is a result of the attention Mugen pays to detail. Available for all Honda engines.
Fits: ALL B/K/F/D series motors.
Here's how this oil cap looks like installed on CTR/ITR JDM Type R Valve Cover. Please note the oil cap you get will say "0W20" instead of "5W20".