Hydraulic Main Piston Pump CAT735 735B 740 740B Articulated Dump Truck for 187-9090 10R-6685

This variable displacement axial piston hydraulic pump is designed for the 735, 735B, 740, and 740B articulated dump trucks. It delivers reliable hydraulic power to the hoist, steering, and working hydraulic circuits, ensuring consistent performance in demanding job site conditions.

• Part Number 187-9090
• Interchange Part Number 10R-6685
• Pump Type Variable Displacement Axial Piston
• Application 735 / 735B / 740 / 740B Articulated Dump Trucks

The following symptoms may indicate wear or failure of the hydraulic main piston pump. Early diagnosis helps prevent further damage to the hydraulic system.

1. Insufficient hydraulic power and slow movement
2. Excessive internal pump leakage, unable to build up pressure
3. Abnormal noise and severe vibration of the pump
4. Hydraulic oil overheating
5. Oil leakage at the pump shaft and joint surface
6. Stuck displacement mechanism, flow control failure

To ensure the correct part is supplied and to streamline order processing, please review the following requirements before purchase.

1. Please provide the machine serial number to confirm part interchangeability.
2. Specify your demand: complete pump assembly, spare parts, or seal kit.
3. Quality options: Genuine, OEM, or Remanufactured.
4. Pre-delivery inspection: pressure test and visual inspection.
5. Seals and O-rings can be provided upon request.
6. Export packing with shockproof and anti-rust treatment.