sem Wheel loader part 5337989 gear pump CBN-E32

Part Number: 5337989
Standard Name: Gear Pump Hydraulic Gear Pump (Power Source for the Whole Machine Hydraulic System) Alibaba.co...
Supporting Brand: SEM (a subsidiary of Caterpillar)
Related Components: Used with a complete set of air piping (5334450 tee, 5339073 brake light tee, 5334464 air pressure gauge hose, 5219660 hollow bolts, etc.), and ZF 4WG200 gearbox. It is the core hydraulic power component of the loader.

II. Compatible Models
SEM Wheel Loaders: SEM636D, SEM639B Original Equipment Gear Pump Alibaba.co...

III. Installation Location and Core Functions
1. Installation Point: Engine-side hydraulic power output end, providing pressurized oil to the entire hydraulic circuit of the vehicle.

2. Core Functions

Hydraulic Power Supply: Continuously outputs high-pressure hydraulic oil to supply the boom, bucket, and steering system;

Auxiliary Transmission Oil Supply: Synchronously provides control oil pressure to the ZF 4WG200 transmission valve body and shift solenoid valve;

Brake Interlock Hydraulic Assist: Works with the air brake system to ensure the normal triggering of the transmission's braking protection logic.