RING-PISTON 9L6233 - Caterpillar

Engine: Truck
3116 (S/N: 7SF1-UP; 7AG1-UP; 1NJ1-UP; 3RJ1-UP; 7HJ1-UP; 9CJ1-UP; 2BK1-UP; 9GK1-UP; 7JL1-UP; 8WL1-UP; CSM1-UP; 5RM1-UP; 2FR1-UP; 7HS1-UP; 5JZ1-UP)
3116 T (S/N: 9LN1-UP; 9YN1-UP)
3126B (S/N: BKD1-UP; 5GL1-UP; 8YL1-UP; 7AS1-UP)
3176 (S/N: 2YG1-UP; 7LG1-UP)
3176B (S/N: 9CK1-UP)
3406B (S/N: 7FB1-UP; 8TC1-UP; 5YG1-UP; 3ZJ1-UP; 5KJ1-UP; 4CK1-UP)
3406E (S/N: 5EK1-UP; 1MM1-UP; 2WS1-UP; 5DS1-UP; 6TS1-UP; 1LW1-UP)
3512B (S/N: 2GW1-UP)
C-10 (S/N: MBJ1-UP; 2PN1-UP; 3CS1-UP; 8YS1-UP)
C-12 (S/N: CPD1-UP; TME1-UP; MBL1-UP; 9SM1-UP; 1YN1-UP; 2KS1-UP; 9NS1-UP)
C-15 (S/N: EGH1-UP; MBN1-UP; 6NZ1-UP)
C-16 (S/N: 7CZ1-UP)
Commercial and Truck Engines:
3126E (S/N: G3E1-UP; DPF1-UP; LEF1-UP; CKM1-UP; CRP1-UP; HEP1-UP; 9SZ1-UP)
Illustration 1 g01049340
The 239-9967 Engine Harness As (Bypass) allows the technician to flash Messenger with Cat ET and Winflash when communication through the service connector is not possible on the above engines. The service connector remains the source of power when the engine harness assembly (bypass) is used.