2004/05/03 Caterpillar

Backhoe Loader:

416C (S/N: 4ZN1-UP; 5YN1-UP; 1WR1-UP; 1XR1-UP)

416D (S/N: BKG1-UP; BGJ1-UP; BFP1-UP)

420D (S/N: BKC1-UP; BMC1-UP; BLN1-UP; FDP1-UP)

424D (S/N: BGP1-UP; BKR1-UP)

426C (S/N: 6XN1-UP; 7WN1-UP; 1CR1-UP; 1ER1-UP; 1MR1-UP; 1YR1-UP; 1ZR1-UP)

428C (S/N: 8RN1-UP; 2CR1-UP)

428D (S/N: BNB1-UP; BLL1-UP; BNS1-UP; BMT1-UP)

430D (S/N: BNK1-UP; BML1-UP)

432D (S/N: BLD1-UP)

436C (S/N: 8TN1-UP; 9JN1-UP; 1FR1-UP; 1PR1-UP; 1RR1-UP; 2AR1-UP; 2BR1-UP)

438C (S/N: 9KN1-UP; 1JR1-UP; 1TR1-UP; 2DR1-UP)

438D (S/N: BPE1-UP; BPN1-UP)

442D (S/N: BRG1-UP; BRY1-UP)

446B (S/N: 5BL2501-UP)

Description of Change: New Solenoid Valves are now being used on Backhoe Loader Transmissions. These new solenoid valves use a higher force that makes them less susceptible to contamination.

Adaptable To: The new valves are listed in Table 1. The effective transmission serial numbers are listed in Table 2. The new valves are fully interchangeable with the old valves and are adaptable to all of the listed models.