PISTON-CLUTCH 9P6800 - Caterpillar

Petroleum Transmission:
TH48-E80 (S/N: FRT1-UP)
Service Magazine SEPD1143, 25 June 2010, "New Cage Assembly Is Now Used TH48-E80 Petroleum Transmissions". Disregard this article. the correct information follows.Description of Change: A change to the bearing cage assembly and the piston have been made to the petroleum transmissions. The changes will increase service life and reliability.
Table 1
Required Parts    
Quantity     Part Number     Description    
1     232-7432     Plate    
1     357-6621     Clutch Piston    
1     357-6623     Bearing Cage Assembly    
1     8P-2019     Seal Ring    
1     8P-2022     Seal Ring    
3     8P-2051     Plate    
3     9P-7390     Friction Disc    Adaptable To: The new 357-6623 Bearing Cage Assembly and 357-6621 Clutch Piston are adaptable to the following transmissions:
(S/N: FRT1-474,485-486,488-488,490-490,499-499,501-501)The new 357-6623 Bearing Cage Assembly and 357-6621 Clutch Piston are effective with the following transmissions:
(S/N: FRT475-484,487,489,491-498,500,502-UP)
Illustration 1 g02153955
Surface area to removed if machining the original 293-5858 Bearing Cage Assembly . (A) 3.6 mm (0.14 inch) (B) 284 0.5 mm (11.2 0.02 inch) (C) 385 0.5 mm (15.2 0.02 inch)The previous 293-5858 Bearing Cage As can be machined and reused if desired. Refer to Illustration 1 for details. The replacement of the 9W-6415 Clutch Piston with the new 357-6621 Clutch Piston must be performed when updating with the new 357-6623 Bearing Cage As or reworked