Hello, thank you for shopping with us.

You have come to the right place for 6.5 diesel products. We provide unique products that you won’t find anywhere else. We also carry the basics for the 6.5 diesel truck. Click on a category above in menu bar to view info on prices and products. Have a look around and feel free to call or email for more info. See the list below please.

10-6 CST. 713-408-0423. info@leroydiesel.com

We are asked everyday “what should I do to my 6.5 diesel truck”. Here is a list to get you started.

#1. Replace your stock oil cooler hoses with a set found in our Engine Lubrication page The stock hoses are very failure prone, if they let go you will destroy an engine.

#2 Upgrade the Lift Pump (LP) system. This will dramatically help performance and support your engine for the following mods.

#3 Inspect your harmonic balancer at every oil change for dry rot/bulging rubber. If it comes apart you will break the crankshaft. If in doubt about it replace it with this Fluid damper.

#4 Remote mount your PMD and carry a spare PMD mounted to a heat sink ready to go if you need it. This is a must do. If you call me for tech assistance for engine issues the first thing Im going to ask is “did you try your spare PMD yet”

#5 Upgrade to a free flowing exhaust system. This will help turbo be more efficient and raise MPGs.

#6 Upgrade you Air Filter System. The S&B is a great system. On 97-2000 trucks and Suburbans they have a good system know as a K47. You just need a free flowing element for those witch are also in the Air Filter System link above.

#7 After you have done the above upgrades you are ready for a Tune and even a new Super 54 Turbo.

There are many more upgrades you can do, but the above list will get you a very stout 6.5 running engine, it will be like driving a whole different truck! Any questions just shoot us an email or call during business hours.

(I actually answer the phone!)