GEAR 8Y6556 - Caterpillar

Agricultural Transmission:
TA19 (S/N: T2Z1-UP)
TA22 (S/N: T4W1-UP)
On-Highway Transmission:
CX28 (S/N: TBB1-UP; T3X1-UP)
CX31 (S/N: EBW1-UP; B3X1-UP; PTX1-UP)
CX35 (S/N: W3X1-UP)
Petroleum Power Train Package:
CX31-P600-C11I (S/N: PDY1-UP)
CX31-P600-C13I (S/N: PDN1-UP)
CX31-P600-C15I (S/N: PDM1-UP)
CX31-P600-C18I (S/N: PDL1-UP)
CX31-P600-C9I (S/N: PDZ1-UP)
CX35-P800-C18I (S/N: PCZ1-UP)
CX35-P800-C27I (S/N: PCY1-UP)
TH31-C9I (S/N: PAZ1-UP)
TH31-C9T (S/N: PAY1-UP)
TH35-C11I (S/N: PBZ1-UP)
TH35-C13I (S/N: PBY1-UP)
TH35-C13T (S/N: PBW1-UP)
TH35-C15I (S/N: PBN1-UP)
TH35-C15T (S/N: PBL1-UP)
TH48-E70-C27I (S/N: PKZ1-UP)
TH48-E70-C32I (S/N: PKY1-UP)
TH48-E70-C32P (S/N: PKG1-UP)
TH55-3512CP (S/N: PNZ1-UP)
Petroleum Transmission:
CX31-P600 (S/N: PFW1-UP)
CX35-P800 (S/N: TRJ1-UP)
TH31-E61 (S/N: LWC1-UP; LAD1-UP; SKY1-UP)
TH35-E81 (S/N: MSB1-UP; TZM1-UP; SMS1-UP; PZT1-UP)
TH48-E70 (S/N: JGC1-UP; KSH1-UP)
TH48-E80 (S/N: FRT1-UP)
TH55-E70 (S/N: PCJ1-UP)
During a system failure of internal components, the power train generates abrasive debris that circulates throughout the system. The debris can cause the valves, the power train, pumps, and actuators to suffer repeat failures. Thoroughly clean debris from the system after a component failure and replace the transmission oil cooler core in order to prevent repeat failures. Refer to Operation and Maintenance Manual, SEBU6250, "Caterpillar Machine Fluids Recommendations" for information on improving the durability of machine components and for additional fluid information.