Sinister Diesel 4th of July Sale
Upgrade your diesel with premium components at 12% off. Use code JULY4 at checkout to claim your discount. Stacks with products already on sale for up to 50%!
Enter this code at checkout:
JULY4
12% discount will be applied to eligible Sinister Diesel products
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Shop By Engine Type
Select your diesel engine to find compatible upgrades
Powerstroke
Duramax
Cummins
12% OFF WITH CODE JULY4
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12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
Shop By Category
Browse our full range of diesel performance products
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
12% OFF WITH CODE JULY4
Shop Now
Discount Exclusions
The 12% discount with code JULY4 does not apply to the following products:
- Turbochargers
- Fuel Pumps
- Injectors
- Any items already on sale
Free shipping applies to orders over $99 to continental US addresses only. Offer valid through July 7, 2024 or while supplies last.
Upgrade Your Diesel Today
Don't miss your chance to save 12% on premium Sinister Diesel components. Use code JULY4 at checkout.
