Description
A quality oil fill cap isn’t just a convenience—it’s a safeguard against contamination and leaks that can compromise engine health. The K9040’s knurled aluminum design provides a secure, hand-tight seal with an O-ring that won’t fail under vibration or temperature cycling. Whether you’re running a street engine or track application, this slip-on adapter ensures reliable oil access and proper breather tube fitment.
- Aluminum construction
- 1-1/2 in diameter
- Screw-on cap design
- Knurled grip surface
- O-ring seal included
- Push-on adapter
- Set screws provided
- Natural finish
- Fits 1-1/2 in breather tubes
- Sold individually






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