Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" - Insane Diesel
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" - Insane Diesel
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" - Insane Diesel
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" - Insane Diesel
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" - Insane Diesel
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)
Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)

Duramax 6.6L Bypass Oil Filter Kit "Under the Hood" (2020-Present)

Regular price$720.49
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Shipping calculated at checkout.

Filter Housing Color
Oil Return Options
* Orders may take up to 7 business days to process before shipping.

Duramax 6.6L Bypass Oil Filtration System  with Under-the-Hood Bracket (2020-Present)

Parts Included In This Kit

  • 1 EXTREME 2 bypass oil filter housing (HX2SHBK) (HX2SHBLU) (HX2SHRED)
  • 1 EXTREME 2 filter element (EX2SE) with o-rings (GX1/2)
  • 2 In/Out fittings (AN06-04MS90)
  • 4ft and 5ft of hose (LW06BK)
  • 1 Under-the-hood bracket with bolts (UTHS)

Pressure Port

  • 1 Pressure port fitting (AN06-20MMx1.5) with o-ring (O20) and fitting (AN06-06FJ90)

Return Port Options: 

Oil Drain Plug Return (standard):  

  • 1 Straight oil pan return (MD175RR) with o-ring (O12) and fitting (AN06-02MS90)

VSE CCV Upgrade Return (2017 - 2024 L5P Only):

  • 1 Quarter Inch NPT Elbow (AN06-04MS90) **read notes below

Important notes regarding 2020+ Newer Duramax 6.6L Oil Return Systems: 
• Standard oil return for 2020+ Duramax vehicles is through the oil drain plug. 

• "VSE CCV upgrade" oil return is only for 2017-2024 L5P engines that have upgraded with this VSE | CCV upgrade kit.  Contact VSE for compatibility with 1/4 NPT return port and we will supply the compatible fitting when you select this option. Contact us for more details. 

• Vehicles using banks drain pans are compatible with the "Oil Drain Plug Return (standard) option. 

 Installation Guide: 

Important: Aluminum straight thread fittings are made for no more than 60 inch pounds of torque.

Important: Does not work with Dual Alternators.  Use "Frame Mount" instead

Duramax 2020+ , 6.6 Under-the-Hood Kit (VIDEO)

BENEFITS OF ULTRA-FINE OIL FILTRATION

• Radically extend engine life 2X
• Reduce engine wear
• Keep oil up to 4X cleaner than new oil
• Progressive 3 stage filtration down to 1 micron, won't clog or drop efficiency like others filters
• Reduce soot and carbon buildup
• Reduce erosion of hoses & seals
• Extend oil change intervals
• Remove 99.9% of moisture
• Improve gas mileage
• Improve oil cooling
• Large housing holds 4000X more contaminants than OEM filters
• Easy installation and maintenance
• 15K (or up to *25K miles) 250 hours, or 1 year before maintenance is needed
• *Condition based oil analysis monitoring recommended when extending oil/filter change intervals

 Learn More About the EXTREME Bypass Oil Filter System Here


• Installation/assembly required by professional mechanic

 

Questions or Need Help?
Call (801) 901-0667

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SHIPPING POLICY

USA SHIPPING:
We may occasionally use a different shipping carrier than the one selected at checkout to improve delivery speed, protect fragile items, or help reduce overall shipping and handling costs, including packaging and processing fees

INTERNATIONAL SHIPPING:

International shipping costs are calculated at checkout; however, these charges do not include any additional customs duties, taxes, brokerage, or tariff fees that may be applied by your country upon import. These fees are not controlled by us and can vary widely based on your location and local regulations. 

CANADA: For an estimate of what duty and taxes will be, visit this site here: 
https://www.cbsa-asfc.gc.ca/travel-voyage/dte-acl/est-cal-eng.html

OTHER COUNTRIES: Please search for your government's "estimated duty and taxes" calculator. 

We strongly recommend that you contact your local customs office or postal service in advance to understand what import fees may apply before placing your order. This will help ensure a smooth delivery and avoid unexpected charges when your package arrives.



RETURN POLICIES

GENERAL RETURN POLICY:
Please review the installation guide or video before purchasing, and confirm the pressure and return port locations for your engine. We're happy to provide guidance if needed. Returns are not accepted for buyer’s remorse or if the kit doesn’t match your engine model, so please double-check compatibility before ordering. If you encounter any issues, contact us — we’re committed to finding a solution.

DAMAGED PRODUCT RETURNS:
All products are inspected before shipping. If your product arrives damaged, please report it with photos within 7 business days of delivery. Only unused, damaged items in their original condition are eligible for replacement or refund. If a product is confirmed to be defective or damaged, you can choose between a replacement or full refund after inspection.

CANCELLATIONS AND OTHER REFUND POLICIES:
In rare cases where a product qualifies for a return (outside of damage on arrival and within 30 days of delivery), a refund will be issued minus return shipping costs and the Shopify transaction fee (2.4%-2.5% + 30¢). Although we *may* offer free shipping during promotions, the original shipping cost will also be deducted from your refund.

Your satisfaction is important to us! If you have any questions or need assistance, please contact us at support@InsaneDiesel.com.



About Insane Diesel's

EXTREME BYPASS OIL FILTRATION SYSTEMS

Providing the best protection against engine wear, oil degradation, acidity, rust, and corrosion.