TUBE AS 2093171 - Caterpillar

Caterpillar Products:
3500 Family Generator Sets and Power Modules
3500 Family Pumpers
3500C Engines Engine: Commercial
3500 and 3500B Family AllDescription of Change: New piston assemblies have an improved cover plate. The new plate is designed with new geometry that improves retention of the plate.Adaptable To:
Illustration 1 g01603234
Section view of piston (1) 298-0306 Cover Plate
The 282-0644 Piston has been cancelled and replaced by the 314-5005 Piston .
The 278-0247 Piston has been cancelled and replaced by the 299-5204 Piston .
The 281-6140 Piston has been cancelled and replaced by the 314-5006 Piston .
The 285-1993 Piston has been cancelled and replaced by the 314-5007 Piston .The former parts and the new parts are listed in Table 1.
Table 1
Former Parts and New Parts    
Piston and Rod Gp     Former Part     New Part    
282-0645 Piston and Rod Gp     282-0644 Piston     314-5005 Piston    
281-6139 Piston and Rod Gp     278-0247 Piston     299-5204 Piston    
281-6141 Piston and Rod Gp     281-6140 Piston     314-5006 Piston    
282-9965 Piston and Rod Gp     285-1993 Piston     314-5007 Piston    The new pistons are adaptable to the 3500 Engines that are listed above. Serial number effectivity is listed in Table 2.
Table 2
Serial Number Effectivity    
Model     Serial Number    
3508B     S/N:2GR08218-UP    
3512B     S/N:8BR02116-UP    
3516B     S/N:7TR02377-UP