HEAD GP-CYL 0R4380 - Caterpillar

Illustration 1 g01434327
(1) 152-2552 Diaphragm
Illustration 2 g01434567
(2) 313-4421 Seal
Table 1
Model H55D S    
Prefix     Production     Replacement Part    
Diaphragm
Seal Seal     Seal Kit    
S/N:BWM1-1999     152-2552 (1)     313-4421     245-3748    
S/N:BWM2000-UP     313-4421 (2)    
S/N:FTF1-UP    
Model H65D S    
S/N:BYT1-999     152-2552 (1)     313-4421     245-3749    
S/N:BYT1000-UP     313-4421 (2)    
S/N:FTS1-UP    
( 1 ) The 152-2552 Diaphragm can be replaced with the 313-4421 Seal .
( 2 ) The 313-4421 Seal is included in the seal kit.
Table 2
Top Cover Part Numbers    
Model    Prefix    Cover    
H55D S     S/N:BWM1-1999     238-1897 (3)    
S/N:BWM2000-UP 310-0668    
S/N:FTF1-UP
H65D S     S/N:BYT1-999     245-3766 (4)    
S/N:BYT1000-UP 310-8832    
( 3 ) The 238-1897 Accumulator Cover on the H55D S hammer does not need to be replaced in order to use the new 313-4421 Seal .
( 4 ) The 245-3766 Accumulator Cover on the H65D S hammer does not need to be replaced in order to use the new 313-4421 Seal .
Table 3
H65D S Top Cover Part Numbers    
Former Part    New Part    Description    
245-3766     310-8832     Cover    
243-2106     307-8185     Spring Housing    
238-1900     307-8186     Spring Guide    
238-1887     307-8184     Retaining Ring    
180-8722     6V-0357     O-Ring Seal    Replace the (Former Parts) that are listed in table 3 if the 245-3766 Accumulator Cover is replaced with the 310-8832 Accumulator Cover.