Red White & Boosted · July 1–6
Red White & Boosted

25% off all DIESELR tune files and 10% off DIESELR hard parts — America's 250th, now through July 6.

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Discount applies automatically at checkout.

GDP Featured Products

Diesel Performance Parts

Tuning, EGR, exhaust, fuel, and transmission parts for Powerstroke, Duramax, Cummins, and EcoDiesel platforms. Calibrated, dyno-proven, and matched to your truck — select your platform and year to see fitment-confirmed options.

110 products

Free EGT Probe Kit from Edge Products

on every eligible retail purchase of a CTS3 Monitor

Free EGT probe with any Edge CTS3 — $200 value through August 31Free EGT probe with any Edge CTS3 — $200 value through August 31Shop →
DIESELR SUPPLY CO.

Official Dieselr Supply Co. gear.

Premium Dieselr merch — Everyday gear for people who live diesel.

T-Shirts Hoodies Stickers
Shop Dieselr Supply Co.

Limited runs. When it’s gone — it’s gone.

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