Sinister Diesel Promo Codes

Treat yourself to huge savings with Sinister Diesel Coupons: 1 promo code, and 8 deals for August 2019.


Sinister Diesel Coupon Codes

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Popular Sinister Diesel & Deals
CouponDescription Discount Type Expire Date
Save $10 on your next order $10 OFF 22 Aug
10-30% off Sinister Diesel products + Free P&P 30% off 31 Aug
$10 off your next order $10 OFF 05 Feb
Best Sinister Diesel Coupons, Discounts and Special Offers丨August 2019 SALE 31 Aug
Get 10% discount on Sinister Brand Parts 10% OFF 08 Feb
17% off Sinister Diesel White and Black Snapback Hat 17% OFF 02 Sep
  • Sinister Diesel Promo Codes

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About Sinister Diesel

Sinister Diesel, a home-grown Diesel parts company founded by Brian George and Michael Mitchell, both went for Diesel. Sinister Diesel changed the way it does business, and customers can call Sinister Diesel for technical advice on branding, components, installation and other aspects of its products throughout their purchase. For Sinister Diesel, real-time phone support was a very important part. Sinister Diesel had a number of very good partners in the industry, including H&S Performance, ARP, AFE, SCT, Bully Dog, MBRP, S&B and many more, which gave customers plenty of component options. And Sinister Diesel has its own production line. Founder Bryan believes that people who love diesel lifestyle are a bit rebellious, although not everyone lives a rebellious life. So Diesel parts were mostly a fashionable and 'Sinister' metallic blue, and the name Sinister Diesel was very much in keeping with the spirit of Diesel. Pick one of our ready-made templates and start designing!

More About Sinister Diesel & Sinister Diesel Coupons


What do you get when a group of diesel, truck and 4x4 off-road enthusiasts get together with a dream of changing the automotive aftermarket industry? You get Sinister Diesel.

Founders Brian George, Michael Mitchell and their whole team share a love of everything diesel. One afternoon, while working on Brian's truck they thought of starting a new company.

Live telephone support is one element of that customer service. Before, during and even after a purchase, people can call Sinister and get live expert technical advice about brands, parts, installation and everything else. There's even the same live support available on the Sinister website. Today, Sinister is one of the fastest growing online aftermarket diesel parts retailers around.

How to save more at Sinister Diesel?

  • Subscribe to Sinister Diesel newsletter to receive the latest on new collections, trends and Sinister Diesel promo codes. Best of all, you'll have the chance to win a $150 gift card!
  • Check out the Sinister Diesel Offers page. Here you will find offers and discounts that will help you save lots of money.
  • Choose the Sinister Diesel package. This will save you a lot compare to buy these items individually.

How to use a Sinister Diesel Special Offer?

Here you are at the Hotdeals Sinister Diesel page. You can see loss of promo codes and deals here, so go and choose one.

After you choose one code, click 'Get Code' and we will lead you to Sinister Diesel you only need to pick up the things you want to buy and then open your shopping cart page. There will be a box for you to submit your coupon code so just submit the code and claim it. The code will be applied automatically and the reductions are yours.

Told you that's easy!


Q:Is there a warranty on parts?

A:Warranties vary, so check the website or give the shop a call for details. Plus, most parts include a 30 day return policy. Of course, everything it sells also includes Sinister Satisfaction Guarantee.

Q:Do you price match?

A:Yes. The shop will match lower advertised prices from certified retailers.

Q:Do you accept returns?

A:Yes. The shop has a 30 day return policy on most items. Visit Shipping and Return Policies page for more information. Of course, everything you buy from the shop includes Sinister Satisfaction Guarantee.

About Sinister Diesel

Sinister Diesel will release some Promo Codes from time to time. Love shop at and want to save more before you finish the orders? Then you've come to the right place.
  • A certain points of the Sinister Diesel membership card can redeem goods directly.
  • sign up at and you will receive discount information for the products you are interested in.
  • You may get several Promo Codes and they can use them to maximize your savings.
  • The Sinister Diesel may have a sitewide free shiping event.

Sinister Diesel Free Shipping Policy

Orders received at 2pm Pacific time (m-f business day except holidays) are normally processed on the day of receipt; However, manufacturing time, late orders, and other factors may delay processing and shipping. Sinister Diesel, through the USPS or UPS, offers its customers the option of choosing standard ground, 3 days for selection, 2 days for air, the next day for air, morning and Saturday. All shipment times in the us mainland are subject to business days (MF, except holidays). Enjoy discounted pricing on most items with verified Sinister Diesel free shipping code and coupons for August.

Sinister Diesel Return Policy

Pay special attention to the order details when you receive the product to ensure that all necessary parts and paperwork are included in the return if it is required. Please follow the instructions and warnings on the package before opening it. Note the label on the outside of the box to ensure that your new parts match the vehicle you are assembling. It is your responsibility to repackage the returned items to the same standard. Need tips on how to save more with Sinister Diesel free shipping code or promo code? Save big with Sinister Diesel Coupons 2019 to maximize your savings.

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