SEAL-O-RING 8T6404 - Caterpillar

Electric Power Generation:
3412 GENSET (S/N: 4BZ1-UP)
Engine:
3406B (S/N: 4TB1-UP; 4JK1-UP; 9PL1-UP)
3406C (S/N: 2WB1-UP; 4RG1-UP; 2AM1-UP)
3406E (S/N: 5GF1-UP)
3408 (S/N: 67U1-UP; 99U1-UP; 78Z1-UP)
3408B (S/N: 9TD1-UP; 1LG1-UP; 2BG1-UP; 8RG1-UP; 67U1-UP; 99U1-UP; 78Z1-UP)
3408C (S/N: 8RG1-UP; TAM1-UP; 9XM1-UP; 67U1-UP; 99U1-UP; 78Z1-UP)
3408E (S/N: 7PR1-UP)
3412 (S/N: 9XF1-UP; 7HG1-UP; 2WJ1-UP; 3JK1-UP; 5RL1-UP; 7BL1-UP; 60M1-UP; BCS1-UP; 38S1-UP; 81Z1-UP)
3412C (S/N: BAK1-UP; 3JK1-UP; 60M1-UP; DJN1-UP; 9EP1-UP; RLR1-UP; 8AR1-UP; 9BR1-UP; TFT1-UP; BCW1-UP; RTY1-UP; 81Z1-UP)
3412E (S/N: TGC1-UP; 4CR1-UP; BFT1-UP)
Generator Set:
3406 GEN SET (S/N: 4ZR1-UP; 75Z1-UP)
3406B GEN SET (S/N: 2WB1-UP; 4RG1-UP; 4PM1-UP)
3406C GEN SET (S/N: C2G1-UP; C5G1-UP; C8G1-UP; 4JK1-UP; KPS1-UP; 1LS1-UP; 8FS1-UP; 9ES1-UP; LRX1-UP)
3406C MARINE GS (S/N: PFH1-UP; 4BM1-UP)
3406E GEN SET (S/N: 9NN1-UP; 8AZ1-UP)
3412C GEN SET (S/N: BAX1-UP)
3456 GEN SET (S/N: BGA1-UP; CCB1-UP; EPE1-UP; C1G1-UP; C3G1-UP; C4G1-UP; CAH1-UP; GHJ1-UP; C2T1-UP; CBX1-UP; 9BZ1-UP)
C18 GEN SET (S/N: C6C1-UP; G4C1-UP; STD1-UP; DKE1-UP; STM1-UP; EKW1-UP)
C18 MARINE GS (S/N: MGS1-UP)
C27 GEN SET (S/N: DWB1-UP; STR1-UP)
C32 (S/N: XMJ1-UP)
C32 GEN SET (S/N: SXC1-UP; WDR1-UP)
C32 MAR GS ENG (S/N: RNE1-UP)
Industrial Engine:
3406 IND (S/N: 6TB1-UP; 90U1-UP)
3406C IND (S/N: 3ER1-UP)
3406E IND (S/N: 6BR1-UP)
3408C IND (S/N: 9ER1-UP)
3412C IND (S/N: 38S1-UP)
3412D (S/N: REA1-UP)
3412E IND (S/N: BDT1-UP)
3456 IND (S/N: 3LW1-UP)
C-15 IND (S/N: BEM1-UP)
C-16 IND (S/N: BFM1-UP)
C18 INDUSTRIAL (S/N: WJH1-UP)
C27 INDUSTRIAL (S/N: TWM1-UP)
C32 INDUSTRIAL (S/N: TLD1-UP)
Marine Engine:
3406 MARINE (S/N: 91U1-UP)
3406C MARINE (S/N: 4TB1-UP; 1SS1-UP)
3406E MARINE (S/N: 9WR1-UP)
3408C MARINE (S/N: 1TS1-UP)
3412E MARINE (S/N: 9KS1-UP; 9PW1-UP)
C15 MARINE (S/N: RLA1-UP)
C18 MARINE (S/N: CKH1-UP; C1J1-UP; KJT1-UP; NAX1-UP; NAY1-UP)
C18 MARINE ENG (S/N: J2K1-UP)
C30 MARINE (S/N: CLX1-UP)
C32 MARINE (S/N: RXB1-UP; RNC1-UP; RND1-UP)
Petroleum Engine:
3412E PETROLEUM (S/N: Z2D1-UP)
C-15 PETROLEUM (S/N: Z2C1-UP)
C32 PETROLEUM (S/N: SMP1-UP)
Engine News SEBD9548, 14 July 2008, "A New Type of Main Bearing is Now Used". Disregard this article. Refer to the following article.The 211-0592 Main Bearing is canceled for the above engines. Do not use the 211-0592 Main Bearing. Use the 317-8766 Main Bearing for diesel and the 321-5746 Main Bearing. This change is effective for all of the above engines.The material for the main bearing has changed. The new 317-8766 Main Bearing and 321-5746 Main Bearing has an overlay for the upper and lower shells.Refer to Table 1 for the correct main bearing kit for your engine.
Table 1
Sales Model     Main Bearing Kit     Serial Numbers    
3406 / 3412     243-6718     S/N:1AR1-UP, S/N:2AM1-UP, S/N:8AR1-UP, S/N:4BM1-UP, S/N:6BR1-UP, S/N:7BL1-UP, S/N:9BR1-UP, S/N:BAK1-UP, S/N:BAX1-UP, S/N:BCS1-UP, S/N:BDT1-UP, S/N:4CK1-UP, S/N:4CR1-UP, S/N:5DS1-UP, S/N:7DB1-UP, S/N:2EK1-UP, S/N:5EK1-UP, S/N:4FD1-UP, S/N:7FB1-UP, S/N:8FS1-UP, S/N:7HG1-UP, S/N:3JK1-UP, S/N:4JK1-UP, S/N:5JK1-UP, S/N:9KS1-UP, S/N:1LS1-UP, S/N:1LW1-UP, S/N:1MM1-UP, S/N:4MG1-UP, S/N:60M1-UP, S/N:3NK1-UP, S/N:4PM1-UP, S/N:8PN1-UP, S/N:9PL1-UP, S/N:9PW1-UP, S/N:1RK1-UP, S/N:4RG1-UP, S/N:1SS1-UP, S/N:38S1-UP, S/N:4TB1-UP, S/N:6TB1-UP, S/N:8TC1-UP, S/N:90U452-UP, S/N:91U128-UP, S/N:92U2730-UP, S/N:2WB1-UP, S/N:2WJ1-UP, S/N:9WR1-UP, S/N:9XF1-UP, S/N:5YG1-UP, S/N:3ZJ1-UP, S/N:75Z1-UP, and S/N:81Z1-UP    
G3406 / G3412     330-4929     S/N:7DB1-UP, S/N:4FD1-UP, S/N:3NK1-UP, and S/N:1RK1-UP    
3408     196-9524     S/N:2BG1-UP, S/N:9ER1-UP, S/N:1LG1-UP, S/N:6NB1-UP, S/N:7PR1-UP, S/N:6RJ1-UP, S/N:8RG1-UP, S/N:1TS1-UP, S/N:9TD1-UP, S/N:67U1-UP, S/N:99U1-UP, S/N:28V1-UP, S/N:9XM1-UP, and S/N:78Z1-UP    
G3408     330-4930     S/N:6NB1-UP, and S/N:6RJ1-UP    
C15 / C16 / C18     243-6718     S/N:BXS1-UP, S/N:JRE1-UP, S/N:W1A1-UP, S/N:BKP1-UP, S/N:7CZ1-UP, S/N:BFM1-UP, S/N:CKH1-UP, S/N:BXT1-UP, and S/N:WJH1-UP    
C27 / C30 / C32     243-6718     S/N:CLX1-UP, and S/N:RXB1-UP