Products

This item is 50-State Legal - CARB EO# D-721; Features:Stainless Steel Construction, Fully TIG Welded and Pressure Tested, Improved exhaust gas fl...

Proper heat management from the cooling system is crucial on modified engines when you want trouble-free and reliable performance. The factory Dura...

Even on freshly rebuilt, or brand new engines, the coolant is usually contaminated with microscopic particles including casting sand leftover from ...

It doesn't matter if your 6.4L Ford Powerstroke engine is brand new or has had a long service life, there are contaminants like casting sand leftov...

Sinister Diesel has now perfected our multi-Layered Steel cylinder head gaskets. Featuring a durable black coating, with five stainless steel layer...

The Sinister Diesel Billet Fuel Plug/Cap for the 2008-2019 Powerstroke is a stylish and durable option to keep dirt and moisture from entering your...

The Sinister Diesel Billet Fuel Plug/Cap for the 2008-2020 Powerstroke is a stylish and durable option to keep dirt and moisture from entering your...

Add years of life to your diesel engine with this Coolant Filter Bypass System. Removing contaminates such as the casting sand and metal shavings m...

Removing contaminates such as the casting sand and metal shavings means your engine's water pump, EGR cooler and cooler will last longer. This kit ...

Sinister Diesel Cold Air Intake for 2011-2016 Ford Powerstroke 6.7L.This Part Fits: Year Make Model Submodel 2011-2016 Ford F-250 Super Duty Kin...

Sinister Diesel intakes are designed, engineered and fabricated in-house to provide industry leading performance and durability. All of our intakes...

The oil system in your engine is crucial to the trucks performance and life. Keeping your oil clean is what it all comes down to and this 6.7L Cumm...

Maximize the performance and efficiency of your 2017 through 2021 Ford 6.7L PowerStroke V-8 by replacing the stock, restrictive piping that connect...

Give your OBS Ford pickup a facelift with Sinister Diesel's new conversion bumper brackets. These brackets will allow you to mate a 2008-2010 style...

Sinister Diesel's new Coolant Reservoir is made from 6061 aircraft grade aluminum which is TIG welded and pressure tested for maximum strength. Thi...

Keep your battery in place while giving your engine bay some Sinister Diesel flair! These hold downs are CNC milled at the Sinister Diesel headquar...

Removing contaminates such as the casting sand and metal shavings means your engine's water pump, EGR cooler and cooler will last longer. This kit ...

Diesel engines are simple: air and fuel make power, so with a cold air intake, the more air you get into your engine, the more power you can make. ...

This new Sinister Diesel Oil Fill Cap functions like a factory cap, but features custom Sinister Diesel looks. The cap fits 1989-1998 Cummins 5.9L ...

The Sinister Diesel Cummins Steering Box Brace helps to eliminate the wobble and play in the steering system that is common in Cummins-powered Dodg...

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...

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...

Oil is the lifeblood of any engine, but heavy-duty trucks work even harder putting even more stress on the oiling system. The Sinister Diesel 1999-...

Removing contaminates such as the casting sand and metal shavings means your engine's water pump, EGR cooler and oil cooler will last longer. This ...