The New Generation Oil Filler Cap
Our new-generation oil filler caps are included with all Insane Diesel bypass oil filtration kits manufactured after 2020. They are engineered for:
- Seamless oil return integration from the bypass filter to your engine.
- Simplified, safer installation.
- Long-term durability under real-world operating conditions
Compatibility with our 360° swivel fittings, allowing for easier installation and simplified hose routing.
This updated design is the only oil filler cap design currently shipped with current Insane Diesel kits.
Legacy Oil Filler Caps -
Pre-2020 Generation
These are legacy Insane Diesel oil filler caps manufactured prior to 2020. This design is no longer used in current Insane Diesel kits , but remains available to support older installations and customers using competitor bypass systems that require additional components to achieve a proper oil return setup.
Engine Enhancement Products
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