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About Us​
Sinister Diesel is a leading provider of high-performance parts and accessories, dedicated to serving the needs of diesel enthusiasts and professionals alike. With our commitment to quality, innovation, and exceptional customer service, we have established ourselves as a trusted name in the diesel industry.
At Sinister Diesel, we understand the passion that drives diesel enthusiasts. Whether you're seeking increased power, improved fuel efficiency, or enhanced reliability, we have the products and expertise to help you achieve your goals. Our comprehensive range of diesel parts and accessories covers various makes and models, including the Ford Powerstroke, Chevy/GM Duramax, and Dodge/RAM Cummins.
We take great pride in manufacturing our parts right here in the USA. We firmly believe in supporting American manufacturing and providing our customers with products of the highest quality. When you choose Sinister Diesel, you can trust you are investing in parts that are proudly made in America.
Our customers are at the heart of everything we do. We are committed to providing an outstanding customer experience from start to finish. Our knowledgeable and friendly support team is always ready to assist you, whether it's helping you find the right product, answering technical questions, or resolving any concerns you may have.
Our Guarantee
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Best price Guaranteed
Best Price Guaranteed
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Live Chat Support
Live Chat Support- Receive quick answers to your questions during business hours.
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Fastest Shipping
Fastest Shipping- Orders ship within 24 hours. Exclusions Apply.
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30 day return Guarantee
30 Day Guarantee- Refunds within 30 days of the original order date. Exclusions Apply.
Spec Sheet
- BrandSinister Diesel
- SKUsinSD-COOLFIL-6.0-C
- UPC841788100816