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G&R Diesel


G&R Diesel is the most advanced diesel truck performance and repair shop in Ohio, and we take great pride in that. Our focus is diesel performance and repair on anything from pickups to class 8 trucks. We specialize in turbochargers, complete motor rebuilds, transmissions and fabrication of our own G&R Diesel brand aftermarket performance parts. G&R was founded in Fredericksburg, Ohio in 2008. We saw a need in the industry for a shop that could diagnose and repair ANY issue your diesel truck may encounter. From there we began to grow rapidly into what is now the most complete diesel only shop around.

From G&R Diesel G&R Diesel

If you are looking to dress up your 6.7 Cummins this is the first piece of the puzzle ! Remove the cheap plastic valve cover / CCV filter and replace it...

From G&R Diesel G&R Diesel

  Bring more power and reliability to your 2010 - 2012 6.7 Cummins with our 2nd Gen Swap Kit! A correctly sized S400 turbo with good tuning works...

From G&R Diesel G&R Diesel

Dress up that old 12 valve with our billet aluminum individual valve covers! With extra clearance for valvetrain and studs they will fit perfectly on your...


From G&R Diesel G&R Diesel

This Sump Comes in three variants: Standard Sump w/Fuel Return or Dual Feed or Dual Feed & Dual Return G&R Diesel Billet Aluminum Bottom...

From G&R Diesel G&R Diesel

When installing a bottom sump with your AirDog or Fass Pump most trucks end up with an open fuel supply and or return line. G & R Diesel's 1/2" or 3/8"...