Cummins “250 Series” Applications

We have received inquiries asking if we have Injector Sleeve Tooling for Cummings 855 Cylinder heads, another is 903, then there is the 1710, and more.

These are all under the same “250 Series” family of cylinder heads which all have a 5-½” bore.

A complete listing that uses the same Copper Injector Sleeves/Cups/Tubes & O-Ring are:

NH 230           NHC 250
NTC 250          SUPER 250
SUPER 250/270    NT 270
NT 280           NTC 290
NT 310           NTC 335
NTC 350          NTC 400
NTA 370          NT 380
NTA 400          TNA 420
NT 855           V 903
VT 903           V-8 265
V 785, 927       VT 1710
N14

The Irontite “250 Series” Sleeve Installation Kit Part Number is: 450-6152-50

NOTE: Sold separately, the Irontite “250 & L-10 Series” Sleeve Removal Tool is: 415-6132-50

Component items to complete your tooling needs are always available.

Please consider our “Field Tested” Injector Sleeve “Installation” Kits as more machinists are adding additional $$$ to the shop.

Irontite Products strives to bring you the most accurate and correct methods and tools to return engines to the factory OEM specifications. We feel that anything less is not adequate. Injector sleeve placement is critical to get proper Injector protrusion which provides the best Injector performance. That, in turn, saves on fuel and on engine wear and tear which means you get more mileage and longevity from your vehicle. Fewer trips to the fuel pump and less downtime means more money in the owner/operator’s pocket.

When it needs to be done right, get it done with Irontite!