Description
The Mishimoto MMOFC-SUB-BK is a black, CNC billet aluminum oil filler cap engineered specifically for the parts of a car engine that keep your Subaru’s oiling system sealed and protected. Machined from 6061 aluminum with a metric M42 x 4.5 thread, this cap threads directly onto compatible Subaru engines and ships with a pre-installed elastomer O-ring for a tight, dependable seal.
Among the small components of an automobile engine, the oil filler cap is one you touch every time you check or top off fluids, and Mishimoto builds this one as a premium-grade, specific-fit replacement rather than a generic universal piece. It’s a simple upgrade among car engine parts that adds a clean, finished look under the hood while doing the real job of keeping oil, dirt, and debris out of the engine. Whether you’re refreshing tired factory hardware or just want a more purposeful look among your engine parts, this billet cap is built to be functional first.
Vehicle Applications
This oil filler cap is designed to fit most Subaru engines using the EJ20, EJ22, EJ18, EJ25, and FA20 engine codes. Coverage spans a wide range of Subaru model lines, including the Impreza (1993–2014) along with the Impreza WRX (2002–2014) and Impreza WRX STI (2004–2014), the standalone WRX and WRX STI lines (2012–2021), Legacy (1990–2016), Outback (2000–2016), Forester (1998–2013), Baja (2003–2006), the B9 Tribeca (2006–2007) and Tribeca (2008–2014), the Justy (1989–1994), and the SVX (1992–1997). Always confirm your specific engine code against the tech specs before ordering.
Features
- Billet CNC-machined 6061 aluminum construction for optimal fit and finish
- Included O-ring ensures a tight, reliable seal
- Available in black and red color options (this listing is the black version)
- Fits most Subaru engines using EJ20, EJ22, EJ18, EJ25, and FA20 engine codes
- Thread-on mounting with a metric M42 x 4.5 thread
- Premium-grade, specific-fit design rather than a universal cap
- Backed by a Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMOFC-SUB-BK
- Material: 6061 aluminum
- Color: Black
- Mounting Type: Thread-on
- Thread Type: Metric
- Thread Size: M42 x 4.5
- Overall Height: 1.1 inches
- Gasket/Seal Material: Elastomer (pre-installed)
- Grade Type: Premium
- Fit Type: Specific
- Engine Codes: EJ20, EJ22, EJ18, EJ25, FA20
- Includes: Mishimoto Oil Filler Cap (1), colour insert (1), O-Ring (1), Lifetime Warranty
Frequently Asked Questions
What material is the Mishimoto oil filler cap made from?
It is CNC-machined from 6061 aluminum.
Does this oil filler cap include a seal?
Yes, it includes an O-ring and comes with a pre-installed elastomer gasket/seal to ensure a tight seal.
What engines does this cap fit?
This cap fits most Subaru engines using the EJ20, EJ22, EJ18, EJ25, and FA20 engine codes.
What is the thread size on this cap?
The cap uses a metric M42 x 4.5 thread and is a thread-on mounting type.
What comes included with the Mishimoto oil filler cap?
The package includes one Mishimoto Oil Filler Cap, one colour insert, one O-Ring, and a Lifetime Warranty.
Is this the black or red version of the cap?
This listing (MMOFC-SUB-BK) is the black version; the cap is also available in red.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
