Cummins ISX15/QSX15 SOHC Injector Sleeve “Replacement Tips”

Posted by on 12/06/21  ~  Posted in: Diesel Tooling Kits

Cummins ISX15/QSX15 SOHC Injector Sleeve “Replacement Tips”


Our Cummins ISX15/QSX15 SOHC Injector Sleeve Kit allows a machinist to remove & install injector sleeves.

Changing these injector sleeves is very basic, however, a common question we receive frequently is: “What do we do with the “Ring” at the top of the inside diameter of the old sleeve”.

This “Ring” is actually a warranty field fix for a premature leaky injector sleeve, which leaked fuel or coolant at the top of the injector sleeve.  It is a one-time warranty field fix used by the OEM or Fleet Operator. These upper Retaining Rings are not to be used again after fresh injector sleeves are installed.

To remove these upper retaining rings, using a drift or punch, coming into the injector sleeve from the deck surface, take the drift or punch and knock out the ring towards the spring side and remove the ring from the injector sleeve once it’s loose.

Now we can remove the injector sleeve and install it per our normal instructions.

With proper Injector Sleeve installation, the cylinder head is brought back into service at OEM specs, the cylinder head is then: “Irontite”.

These are the “Best Diesel Tools” on the market and a Great Opportunity for everyone to make some additional $$$ along with keeping our industry alive!!


Cummins ISX15/QSX15 SOHC Injector Sleeve Removal & Installation Kit p/n: 450-6157-00


Cummins ISX15/QSX15 SOHC Stainless Steel Injector Sleeve & O-Ring p/n::  419-6197-05


Instruction manuals are available to view or download online listed under our “Literature” tab.


Please Call or Email with any additional Industry Tips. Questions or Concerns, all are welcome.

Thanks for your business!

Again, thanks for all your support.


Rich Wengatz

Nat’l Sales Manager

Irontite Products Inc.