Irontite Diesel Tooling is the highest quality tooling for replacing injector sleeves.  

The complete Caterpillar 3126B (3-Valve) Series Kit with Toolbox      451-6581-00
Tap       437-5331-80
Tap Guide Bushing      437-6581-40
Sleeve Removal Tool       437-6582-30
Casting Cleaning Brush      450-6951-05
Drive in Tool     437-6581-80
Microfinish Tap & Lube      468-9910-16
Ceramic Seal     468-9120-16

Sleeve Removal

(1)  With the Tap (437-5331-80) and the Tap Guide Bushing (437-6551-40) thread the upper end of 
the worn sleeve while using Microfinish Tap & Lube (468-9910-16). 

(2)  Insert the sleeve remover (437-6582-30) threaded puller shaft of the removal tool down into 
the old sleeve.  Continue to torque the shaft into the sleeve until the shaft grips the sleeve 
tightly with the threads.   
(3)  With the puller bridge (or cup) in place between the puller nut and the face of the casting, and 
with the thrust bearing and the two thrust washers between the puller nut and the puller 
bridge, continue tightening down the puller nut and pull out the old sleeve as shown. 

Sleeve Installation

(1) Using the carbon steel casting brush (450-6951-05) clean out the inside of the injector 
sleeve bore area, insure the casting is clean in the square cut corner for proper sealing. 
(2) Apply Ceramic Seal (468-9120-16) to the casting area and outside of the injector sleeve, 
then use the sleeve drive in tool (437-6581-80) and a hammer, drive the sleeve to the 
bottom of the casting.