LOCK 2H4499 - Caterpillar

On-Highway Engines:
3116 (S/N: 7HJ1-UP; CSM1-UP; 5RM1-UP; 2FR1-UP; 7HS1-UP; 7AG1-UP; 3RJ1-UP)
3126 (S/N: 4ES1-UP; 6RW1-UP; 8HW1-UP; 7LZ1-UP; 1WM1-UP; 1BW1-UP)
3126B (S/N: 7JZ1-UP; BKD1-UP; 1AJ1-UP; 6PZ1-UP; 8SZ1-UP; 8YL1-UP; BES1-UP)
3176 (S/N: 5XN1-UP; 2YG1-UP)
3176B (S/N: 3LZ1-UP; 9CK1-UP)
3208 (S/N: 5CD1-UP; 62W1-UP; 99R1-UP; 02Z1-UP)
3406E (S/N: 4AS1-UP; 5DS1-UP)
C-10 (S/N: 3CS1-UP; 2PN1-UP; AKB1-UP; MBJ1-UP)
C-12 (S/N: 1YN1-UP; TME1-UP; MBL1-UP; 9SM1-UP; ALS1-UP; CPD1-UP; 2KS1-UP)
C-15 (S/N: 9NZ1-UP; MBN1-UP; 6NZ1-UP)
C-16 (S/N: W1A1-UP; 7CZ1-UP)
C-18 (S/N: MEP1-UP; MDP1-UP)
C15 (S/N: MXS1-UP; BXS1-UP)
C7 (S/N: FML1-UP; KAL1-UP; FMM1-UP; SAP1-UP)
C9 (S/N: MTB1-UP; 9DG1-UP; CKP1-UP)
3306C (S/N: 9TL1-UP)
C11 (S/N: KCA1-UP)
C13 (S/N: KCB1-UP)
3116 ATAAC (S/N: 7JL1-UP)
3116 T (S/N: 9YN1-UP)
3208 DI FORD GMC GRAPH IHC LISTS NA WHITE (S/N: 51Z1-UP)
3306B (S/N: 63Z1-UP)
3306C ATAAC DI TA (S/N: 7RJ1-UP)
3406 DI FORD FRTLR IHC PACCR T (S/N: 92U1-UP)
3408C (S/N: 9ER1-UP)
3456 (S/N: 9BZ1-UP)
3306 (S/N: 76R1-UP)
3406 (S/N: 3ZJ1-UP)
3126E (S/N: HEP1-UP)
Commercial and Truck Engines:
C7 TRUCK/BUS (S/N: YPG1-UP)
3126E (S/N: G3E1-UP; LEF1-UP; CRP1-UP; 9SZ1-UP)
Description of Change: The engines that are listed above contain a new seal on the fuel filter.Adaptable To:
Illustration 1 g01201381
Old SealThe old seal (A) has been redesigned on the following fuel filters. 1R-0750 Fuel Filter, 1R-0751 Fuel Filter, 1R-0749 Fuel Filter, and 1R-0753 Fuel Filter. The seal on the fuel filter was redesigned in order to provide a better seal for higher operating pressures.
Illustration 2 g01201402
New SealThe new seal (B) on the fuel filter will withstand higher operating pressures than the old seal.