Isuzu FSR 2001 and 2002 Diesel 6HK1 7.8L 7800 Duramax Diesel.

Isuzu FTR 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 6HK1 7.8L 7800 Duramax Diesel.

Isuzu FVR 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010  6HK1 7.8L 7800 Duramax Diesel. 

Isuzu FXR 2004, 2005, 2006, 2007, 2008, 2009, 2010 6HK1 7.8L 7800 Duramax Diesel. 

Isuzu NPR 2005, 2006, 2007, 2008 and 2009 4HK1 5.2L Diesel. 

Isuzu NPR-HD 2005, 2006, 2007, 2008, 2009, 2010, 4HK1 5.2L Diesel. 

Isuzu NQR 2005, 2006, 2007, 2008, 2009 and 2010 4HK1 5.2L Diesel. 

Isuzu NRR 2005, 2006, 2007, 2008, 2009 and 2010 4HK1 5.2L Diesel.

EN-49960 allows injector nozzle sleeve replacement with the head installed on the engine. 

EN-49960-3 Remover is seated into the nozzle sleeve, and turned counter-clockwise with a wrench to unscrew it from the cylinder head. 

If a sleeve spins without removal, a slide hammer with 1/2"-13 thread (such as J-23907-1) is installed into EN-49960-3, and used to remove the nozzle sleeve. 

Once the new sleeve is ready for installation, it is placed onto EN-49960-1 Installer Guide, and seated lightly into the head with a hammer against EN-49960-1. 

The Injector clamp is used to hold EN-49960-1 and the sleeve in place. EN-49960-3 Swager is guided through EN-49960-1, and seated with a hammer. 

The included hardware is then threaded onto to EN-49960-3 remove it from EN-49960-1.