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Caterpillar 9U9535 Transmission Pump Assembly

Caterpillar 9U9535 Transmission Pump Assembly


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Part TypeTransmission Pump (Gear Pump Group)
Displacement Range8-90 cc/rev
Weight (kg)21 kg
Rotation DirectionClockwise (Viewed from Shaft End)
Package Dimensions35 × 22 × 20 cm

Manufacturer No.

  • 9U9535
  • 9U-9535
  • CA9U9535

OEM Part No.

  • 1335100

Engine Part No.

  • Caterpillar 3306

Interchange No.

  • 9U-9535
  • CA9U9535

Fitment Vehicles

  • Caterpillar 966F Wheel Loader
  • Caterpillar 966F Series II Wheel Loader
The Caterpillar 9U9535 transmission pump is a gear-type pump group designed for the power train hydraulic system of Caterpillar 966F Series II Wheel Loaders equipped with the 3306 diesel engine. It provides hydraulic flow for transmission clutch actuation and lubrication. This assembly replaces Caterpillar OEM part numbers 9U9535 and 1335100. It is engineered to meet OEM specifications for displacement, pressure rating, and rotational speed compatibility with the 3306 engine drive. The pump features a cast iron housing with precision-machined gear sets for durability in heavy-duty construction machinery applications.