G&R Diesel Inc.

Our Tappet Cover works with VE, VP, and P-Pump Cummins engine. If you are looking for a nice top of the line tappet cover for your current build or replacing a leaking cover, this will be the perfect setup for you! Key Features: -...

Complete T4 turbo mounting kit with stainless up-pipes to eliminate that nagging factory VNT charger. This kit is perfect to add power and reliability to your 6.0 Powerstroke. Key Features: - With a complete T4 turbo mounting kit to eliminate that nagging factory VNT...

This 6.0 Powerstroke S400 Install kit is perfect to add power and reliability to your engine Key Features: - With a complete T4 turbo mounting kit to eliminate that nagging factory VNT charger - Our billet 6.0 Powerstroke turbo pedestal is available for both...

Complete T4 turbo mounting kit to eliminate that nagging factory VNT charger. Our billet 6.0 Powerstroke turbo pedestal is available for both S300 and S400 applications. The S400 variation is 1" taller for the larger compressor housing to clear the intake manifold. Most companies...

Our Billet Aluminum Bottom Sump with Integrated Fuel Return System completely eliminates the need to run the return of your aftermarket fuel pump to the top of the tank or cut into the fuel filler neck, therefore cutting install time tremendously! Key Features: -...

Dual Rear CAT Fuel Filter Conversion Kit | 2013–2018 6.7L Cummins Engineered specifically for the 2013–2018 Ram 2500/3500 with the 6.7L Cummins, this dual rear fuel filter conversion kit eliminates the cost and hassle of OEM-style filters by converting your rear fuel/water separator location...

Our CAT fuel filter conversion kit is compatible for 2011 - 2016 F250 & F350 6.7 Ford Powerstroke equipped trucks Key Features: - This kit allows for the removal of the secondary (engine mounted) fuel filter and eliminates the factory fuel filter located in...

This is a billet aluminum 2" intake horn spacer! GRD59CM1003 Key Features: Compatible with: Air Intake, Cummins

Our 6.7 Cummins Fuel Filter Conversion includes a large list of features to set it apart from the pack! The billet aluminum filter head bolts directly into the same place as the factory filter and features return ports to connect the factory hard return...

Key Features: Compatible with: 1/2" CP3 Fitting, Cummins, Duramax, Fuel Systems, Powerstroke, Universal

Our 6.7 Cummins Harmonic Balancer Puller is designed for you to be able to pull the balancer off of the engine without needing to remove the radiator Key Features: - This makes servicing anything on the front of the engine much quicker and easier!...

When more airflow is needed on your 6.7 liter Cummins, this is one of the first parts to consider. With 30+ percent more airflow than stock, this is sure to increase HP, lower EGT's and efficiency. Unlike most of our competitors' parts, we have...

This braided stainless steel turbo oil drain line kit is designed to specifically work with a stock Duramax turbo setup and replace the hard stock steel line! Part # GRD661026 Key Features: Compatible with: Duramax, Engine & Engine Parts

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Our new 2013+ Cummins welded Aluminum Coolant Tank is the perfect part when more room is needed in the passenger side engine compartment for bigger or more turbos. Fully tig welded and pressure tested for the quality you have come to expect from our...

We have developed a heavy duty LBZ-LMM Duramax cold side intercooler tube that replaces the factory tube. From the factory, GM uses a tube with plastic quick connect ends and a light duty intercooler connector. Our tube uses CNC machines billet connectors on each...

When installing a bottom sump with your AirDog or Fass Pump most trucks end up with an open fuel supply and or return line. Our 1/2", 3/8" or 5/16" aluminum plug will cap off these lines with ease, to keep fuel from seeping out...

Part # GRD661027 Key Features: Compatible with: Duramax, Engine & Engine Parts