An Improved Engine Oil Pan is Now Used on Certain 797 and 797B Machine Engines {1302} Caterpillar


An Improved Engine Oil Pan is Now Used on Certain 797 and 797B Machine Engines {1302}

Usage:

797 5YW
Off-Highway Truck/Tractor
797 (S/N: 5YW1-UP)
797B (S/N: JSM1-UP)

Description Of Change: A new oil pan design is optimized to improve strength in certain areas of high stress in the 797 A/B engine. Refer to the list of pan groups in Table 1.

Adaptable To: The new 504-1514 Oil Pan As is a replacement for the 136-3284 Oil Pan As. The new pan has two additional holes added, each will require 9S-4190 O-Ring Plug and 2M-9780 O-Ring Seal. These holes were added to accommodate future features. Refer to Table 2. The new 504-1514 Oil Pan As is adaptable back to the first production of the listed engine.

The change is effective at the factory with the engine serial numbers S/N:NPM00564-UP and ; S/N:XEE00101-UP.

Table 1
Pan Group 
136-3272 
155-0406 
217-7050 
217-7060 

Table 2
Qty  Former Part Number  Qty  New Part Number  Description 
136-3284  504-1514  Oil Pan As 
2 9S-4190 O-Ring Plug 
2 2M-9780 O-Ring Seal 

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