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Performance Tuning & Diesel Truck Parts Built for Power
DieselR is built for those who demand real results. From precision tuning files to performance-driven diesel parts, we engineer every upgrade to deliver power, efficiency, and reliability. Whether you're looking for the best tuning files or serious performance mods, we make sure your diesel works as hard as you do.
New Products
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Superlube Aerosol Spray
Vendor:Katz AzzSKU:809454
Regular price From $12.85 USDRegular priceUnit price / per -
DFL Diesel Fuel Lubricant Tank Shot
Vendor:Katz AzzSKU:350363
Regular price From $23.21 USDRegular priceUnit price / per -
DFL Diesel Fuel Lubricant
Vendor:Katz AzzSKU:350362
Regular price From $13.56 USDRegular priceUnit price / per -
ProMAX Performance Oil Additive
Vendor:Katz AzzSKU:202180
Regular price From $35.68 USDRegular priceUnit price / per
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Hot Sellers
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DIESELR Grid Heater Delete Kit (2007.5-2024 Cummins 6.7L)
Vendor:DIESELR TuningSKU:315-03000
Regular price $187.50 USDRegular priceUnit price / per -
DIESELR 3.5" Max Intake Manifold (2007.5-2018 Cummins 6.7L)
Vendor:DIESELR TuningSKU:315-03001
Regular price $212.50 USDRegular priceUnit price / per -
DIESELR Throttle Valve Upgrade Kit (2007.5-2024 Cummins 6.7L)
Vendor:DIESELR TuningSKU:315-01000
Regular price $100.00 USDRegular priceUnit price / perSold out -
DIESELR CCV Internal Catch Can (2011-2023 Powerstroke 6.7L)
Vendor:DIESELR TuningSKU:115-02001
Regular price $160.00 USDRegular priceUnit price / per
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