Sinisterdiesel.com April 2024 Coupon Codes

Sinister Diesel is the only place to shop for diesel performance parts such as Upgraded EGR Coolers, Cold Air Intakes and more!

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Thanksgiving sale is on now! Call (844) 470-9747 or visit and use coupon code .

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Posted 6 years ago (21 November 2017)

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Get 10% OFF parts site-wide during our Memorial Day Weekend Sale! . use coupon code;

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Posted 9 years ago (22 May 2015)

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