2008/08/25 Caterpillar

Engine:

C-18 (S/N: MDP1-UP)

C18 (S/N: RRC1-UP; DKE1-UP; EJG1-UP)

Generator Set:

C18 GEN SET (S/N: C6C1-UP; G4C1-UP; STD1-UP; STM1-UP; EKW1-UP)

C18 LOCOMOTIVE (S/N: DCT1-UP)

C18 MARINE GS (S/N: CYN1-UP; MGS1-UP)

Marine Engine:

C18 MARINE (S/N: CKH1-UP; C1J1-UP; KJT1-UP; NAY1-UP)

C18 MARINE ENG (S/N: J2K1-UP)

Petroleum Engine:

C18 PETROLEUM (S/N: WJW1-UP)

Industrial Engine:

C18 INDUSTRIAL (S/N: WJH1-UP)

Description of Change: Several improvements have been made to the profiles of the cylinder liner on the C18 engines in order to increase durability. Also, the two bottom cylinder liner seals are now the same part number.

Adaptable To: The new 322-1126 Cylinder Liner and the 155-2793 Liner Seal are adaptable to the serial numbers that are listed above.

Illustration 1	g01622070
(1) Location of the two 155-2793 Liner Seals