Rochester Diesel

Rochester Diesel will be closed Monday March 16 2026 due to weather.

150% over stock race injectors with custom body modifications. Heading to WV.

0986435505 stock injectors. Set of 6. These injectors are completely rebuilt with all new Bosch parts. These injectors are for a 04.5-07 5.9 Cummins. $380.00 apiece with a $100.00 per injector core charge. Your core charge will be refunded to you when Rochester Diesel receives your good cores.

Custom made nozzles for customer needing specific spray angle to match the piston in the truck. These are performance injectors.

New Cat injectors. Set of 6. $950 each outright or $900 each with a good core. These injectors are the same as a 10R7229. One set left.

12.5 John Deere injectors. Stock injectors rebuilt in-house with all new parts. Heading to Iowa.

Volvo E3 race nozzles heading to Finland. EDM’d and honed for max flow.

Rochester Diesel’s phones are fully functional once again. Thanks for your patience.

We are currently experiencing phone issues which will hopefully be resolved by the end of the day. If it doesn't go through on the first try - please try again. Thank you for your patience.

JD 4020 High Lift Pencil Injectors
Part Number 20494
Honed 40% Over
Heading to Canada

Stage 3 race injectors heading to Canada. Cat C15 race-only injectors. Stage 3 completely rebuilt in-house at Rochester Diesel with all new parts. These injectors contain a 12 mm plunger that has been DLC coated. The nozzle has been custom EDM'd and micro-flowed through the process of extrude honing to maximize fuel flow. Overall the Stage 3 injector flows 300% more fuel than the largest stock C18 injector. There is also extensive machine work done to each injector body to increase fuel flow.