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Sinister Diesel

Sinister Diesel Coolant Filtration System for Chevy Duramax 2011-2015 6.6L (WIX)

$337.99 $259.99 Save $78.00

SKU: S004 SDCOOLFIL6611W

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sinister Diesel Coolant Filter Bypass System adds years of life to your diesel engine by removing contaminants such as casting sand and metal shavings, which cause premature wear to the water pump, EGR cooler, and oil cooler. The system bypasses and filters small amounts of the engine’s coolant while the diesel engine is running. It features a CNC machined 6061 aluminum filter block, anodized in Sinister Blue, and includes all fittings needed for installation.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSinister Diesel
Part NumberS004 SDCOOLFIL6611W

Videos

How To Install A Coolant Filter For Duramax LML | Sinister Diesel

How To Install A Coolant Filter For Duramax LML | Sinister Diesel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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