Black Friday
The story goes that this is the day the books finally went from red ink to black. This year the red ink is ours: 15%* off eligible Sinister Diesel parts for Powerstroke, Cummins and Duramax, Nov 13 to 29.
*Excludes turbos, injectors and pumps. Exclusions apply.
Sale ends in
- Cold Air Intake, 6.7L Powerstroke$579.99$492.99
- Charge Pipe Kit, 6.7L Powerstroke$795.99$676.59
- Coolant Filtration, 6.7L Cummins$239.99$203.99
- Cold Air Intake, LML Duramax$499.99$424.99
- Made in the USA
- Free shipping on Sinister parts $100+ (lower 48)
- Pay over time with Affirm
Sinister Diesel
Powerstroke best seller
Cold Air Intake for 2017-2019 Ford Powerstroke 6.7L F250 F350 F450
Sinister Diesel
Cummins best seller
Cold Air Intake for 2013-2018 Dodge/Ram Cummins 6.7L
Sinister Diesel
Duramax best seller
Cold Air Intake for 2013-2016 Chevy/GMC Duramax 6.6L LML
Doorbusters
Our best sellers. Red ink is the old price.
Cold Air Intake for 2017-2019 Ford Powerstroke 6.7L F250 F350 F450Powerstroke$579.99$492.9902
Charge Pipe Kit for 2017-2026 Ford Powerstroke 6.7LPowerstroke$795.99$676.5903
Coolant Filtration System for 2003-2007 Ford Powerstroke 6.0LPowerstroke$239.99$203.9904
Bypass Oil Filter System for 2003-2007 Ford Powerstroke 6.0LPowerstroke$779.99$662.9905
Fuel Filter Conversion Kit for 2011-2026 Ford Powerstroke 6.7LPowerstroke$319.99$271.9906
Billet Blue Cap Kit for 2003-2007 Ford Powerstroke 6.0LPowerstroke$394.99$335.7407
Cold Air Intake for 2013-2018 Dodge/Ram Cummins 6.7LCummins$499.99$424.9908
Coolant Filtration System (w/ WIX) for 2007.5-2012 Dodge Cummins 6.7LCummins$239.99$203.9909
Charge Pipe Kit for 2003-2007 Dodge Cummins 5.9LCummins$454.99$386.7410
Steering Box Support for 2003-2009 Dodge Cummins 5.9L/6.7LCummins$314.99$267.7411Cold Air Intake for 2013-2016 Chevy/GMC Duramax 6.6L LMLDuramax$499.99$424.9912
Coolant Filtration System (w/ Wix) for 2011-2015 GM Duramax 6.6L LMLDuramax$259.99$220.9913
Intake Bridge for 2011-2016 GM Duramax 6.6L LMLDuramax$484.99$412.2414
Hot Side Charge Pipe for 2011-2016 GM Duramax 6.6L LMLDuramax$444.99$378.24Ring it up
Press the SALE key and the register pops your code. We copy it for you, so just paste it at checkout.
Under $250
Blue Spring Kit with Billet Housing, 2003-2007 Powerstroke 6.0L
CAT Fuel Filter Adapter, 2001-2016 GM Duramax 6.6L
Universal Reusable Air Filter (4" Inner Diameter)
Dual Wall Exhaust Tip w/ Angle Cut 4" to 6" Black
Dual Wall Exhaust Tip w/ Angle Cut 4" to 6" Polished
Fuel Cap for 2008-2020 Ford Powerstroke (Green)
Fix it before it fails
Fuel Filter Conversion Kit, 6.7L Powerstroke
Crack-prone factory plastic fuel filter housing
Billet aluminum, leak-resistant, fits 2011-2026
Cold Side Charge Pipe, 2017-2026 6.7L
Factory plastic and rubber pipes crack or split under boost
3" mandrel-bent aluminum with a no-slip silicone boot
Coolant Filtration System, 2013-2018 Cummins 6.7L
Casting sand, rust and debris clog the heater core and EGR cooler
27-micron bypass filter, billet bracket, WIX filter included
Blue EGR Cooler, 2004-2007 Powerstroke 6.0L
Factory fin-style EGR cooler cracks and leaks coolant
Stainless steel tube design, fully TIG-welded
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Air Intakes
Filtration
Coolant System
Engine Parts
Exhaust Kits
Exterior
Intercooler Pipes
All Sinister PartsThe sale ends Nov 29
Then the code is gone and the prices go back up.
*15% off eligible Sinister Diesel branded parts with code BF26, Nov 13-29, 2026. Excludes turbos, injectors and pumps. Exclusions apply. Cannot be combined with other offers. While supplies last.