Sinister Diesel

    The perfect way to complement all the upgrades to your diesel truck’s exhaust system is with a Sinister Diesel exhaust tip. Because this Sinister Diesel AR-15 exhaust tip has a...

    Proper heat management from the cooling system is crucial on modified engines when you want trouble-free and reliable performance. The factory Duramax water pump is known to slip...

    Proper heat management from the cooling system is crucial on modified engines when you want trouble-free and reliable performance. The factory Duramax water pump is known to slip...

 Not for sale in California The new Sinister Diesel Hexagon 6.0 Intake Elbow for replaces the restrictive stock piping on your 2003-2007 Ford F-250, F-350 Super Duty or 2003.5-2005 Excursion 6...

    If you want to level your Dodge, Sinister Diesel leveling kit is what you want. And we just happen to have it for a price you want too. If you want to level the front end of your...

    If you want to level your Dodge, Sinister Diesel leveling kit is what you want. And we just happen to have it for a price you want too. If you want to level the front end of your...

    Now available for sale in California! CARB EO# D-721-4 The easy 30 minute install of the new updated "Blue Spring" will increase your fuel pressure back up to where it should be...

    Whether you're working, towing or racing, a proper charging system is crucial in keeping your Ford PowerStroke engine operational. Don't let a faulty OEM alternator leave you stranded...

    Sinister Diesel 320 Amp OEM alternators are trusted by many Diesel repair shops and stores to be the “fix all solution” for the Ford Powerstroke 6.4L alternator failures...

    If you're looking for your lifted truck to drive straighter, improve tire wear and exhibit less steering "wander," the Sinister Diesel 2003-09 Dodge Cummins 4wd steering box support...

    If you're looking for your lifted truck to drive straighter, improve tire wear and exhibit less steering "wander," the Sinister Diesel 1994-2002 Dodge Cummins adjustable track bar kit...

    The Sinister Diesel Adjustable Track Bar is precision manufactured from high strength forged bars for unparalleled durability and includes long lasting Heavy Duty polyurethane...

    Keep your battery in place while giving your engine bay some Sinister Diesel flair! These hold downs are CNC milled here at the Sinister Diesel headquarters from billet aluminum and...

    Add some durability and style to your truck using these Sinister Diesel 03-07 Powerstroke billet cap! Unlike the OEM oil and filter caps, these won’t crack from overtightening...

    Dress up the engine bay in your truck and add some nice durability with this 08-10 Powerstroke billet cap kit from Sinister Diesel. The kit comes with replacement aluminum Oil Filler...

    The Sinister Diesel Billet Fuel Plug/Cap for the 2013-2018 Cummins is a stylish and durable option to keep dirt and moisture from entering your fuel tank. The factory uses a small,...

    Note: This item is build to order Note: The build time is approximately 60 days for this part Note: This product is NOT for sale in California Sinister Diesel's Billet Valve covers...

    When you rely on your truck and demand the best performance, a plastic water pump impeller just isn't going to cut it. The plastic OEM water pump impellers in the 6.0 Powerstroke have...

    When you rely on your truck and demand the best performance, a plastic water pump impeller just isn't going to cut it. The plastic OEM water pump impellers in the 6.0 Powerstroke have...

    When you rely on your truck and demand the best performance, a plastic water pump impeller just isn't going to cut it. The plastic OEM water pump impellers in the 6.4 Powerstroke have...