Cummins Service Products Catalog – Tool ST 1245Injector Sleeve Puller

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Engine Family: C & J, NH

These injector pullers are “wedge” type pullers used to remove the injector sleeves from cylinder heads. The design requires hammer blow to the tool to wedge and collapse the sleeve around the extractor tip. A large impact socket ST 1247 is then used to pull the sleeve.

Ref. No. Part No. Description
  ST 1245 Injector Sleeve Puller (H, NH, V12 5 1/8 bore)
  ST 1246  Injector Sleeve Puller (C & J)
  ST 1247  Impact Socket 
Breakdown of above parts including obsoleted ST 1244:
1 P/N – 1 Injector Sleeve Support Bridge
2 3375616  Injector Sleeve Rod 
3 P/N – 3 Injector Sleeve Nut (9/16-12)
4 P/N – 4 Injector Sleeve Nut (1 in.-8)
5 P/N – 5 Injector Sleeve Thrust Washer
6 3375614  Injector Sleeve Forming Collar(for ST 1244)
6 3375618  Injector Sleeve Forming Collar(for ST 1245)
6 3375620  Injector Sleeve Forming Collar(for ST 1246)
7 3375825  Injector Sleeve Extractor Tip(for ST 1244)
7 3375832  Injector Sleeve Extractor Tip(for ST 1246)
7 3375843  Injector Sleeve Extractor Tip(for ST 1245)
8 P/N – 8 Injector Sleeve Driver
9 P/N – 9 Injector Sleeve Spacer (V378, V504, V555)
10 3375615  Injector Sleeve Collar 
The following assemblies contain details 2, 6, 7 and 10 from above illustration.
  3375617  Forming Collar Assembly for ST 1244
  3375619  Forming Collar Assembly for ST 1245
  3375621  Forming Collar Assembly for ST 1246
Last Modified:  31-Jul-2003