SEAL 8N4174 - Caterpillar

Industrial Engine:
3003 (S/N: 3ZG1-UP)
3204 (S/N: 7EB1-UP)
3208 (S/N: 29A1-UP; 30A1-UP; 75V1-UP; 01Z1-UP; 93Z1-UP)
3306B (S/N: 7JB1-UP; 1BM1-UP; 5GZ1-UP)
3406 (S/N: 90U1-UP)
3406C (S/N: 3ER1-UP)
3408C (S/N: 9XM1-UP; 9ER1-UP)
3412 (S/N: 9XF1-UP; BCS1-UP)
3412C (S/N: 8AR1-UP)
Generator Set:
3304 (S/N: 3TC1-UP; 83Z1-UP)
3304B (S/N: DED1-UP; 1YF1-UP; 2KK1-UP)
3306 (S/N: 85Z1-UP; 5JC1-UP; 7KF1-UP)
3306B (S/N: EFA1-UP; B8D1-UP; 8JJ1-UP; 9NR1-UP; 8NS1-UP; 9DS1-UP; LRW1-UP)
3406C (S/N: C2G1-UP; C5G1-UP; PFH1-UP; 4ZR1-UP; KPS1-UP; 1LS1-UP; 8FS1-UP; 9ES1-UP; LRX1-UP)
3406E (S/N: 8AZ1-UP)
3408C (S/N: TAM1-UP)
3412 (S/N: 2WJ1-UP; 7BL1-UP; 4BZ1-UP)
3412C (S/N: BAK1-UP; DJN1-UP; 9EP1-UP; RLR1-UP; TFT1-UP; BCW1-UP; BAX1-UP; LRY1-UP)
3412E (S/N: TGC1-UP)
3508B (S/N: 4GM1-UP)
3612 (S/N: 9RC1-UP)
Marine Engine:
3304 (S/N: 13E1-UP)
3304B (S/N: 1NS1-UP; 1PS1-UP)
3306 (S/N: 84Z1-UP)
3306B (S/N: 1RS1-UP; 1SS1-UP)
3408B (S/N: 1LG1-UP)
3408C (S/N: 1TS1-UP)
3412 (S/N: 7HG1-UP; 9BR1-UP)
3512B (S/N: 8EM1-UP)
3516B (S/N: 8KN1-UP)
Caterpillar currently provides the dealers with a wide variety of information in order to help troubleshoot complaints. Such publications include Special Instructions, Systems Operation/Testing And Adjusting, and Troubleshooting etc. Caterpillar also provides training and support in the form of classes for service training, news letters, and the Dealer Solution Network. Despite all this information, misdiagnosed fuel nozzles continue to be returned from the field.Refer to the Reuse and Salvage Guidelines, SEBF8340-01 for information on the NSFS. This guide provides troubleshooting information, testing and adjusting procedures, and guidelines that are necessary to diagnose the fuel nozzles.