XCMG SPARE PARTS AC COMPRESSOR 269903153

OE Part Number: 269903153 Standard English Name: Air Compressor / Brake Air Compressor Chinese: 老虎空气优化、加气泵 (Brake Air Compressor, Air Pump)
Code Classification: 2699 indicates a brake air source pump for the chassis engine of XCMG QY/XCT series truck cranes, providing compressed air for the service brakes, air horn, and pneumatic clutch. This is distinct from an air conditioning compressor.

II. Compatible Models
Compatible with all XCMG truck cranes ranging from 25 to 70 tons:
XCT25L5, QY25K5C, XCT30, XCT50, XCT70. Matches Sinotruk WP10/WP12 chassis engines; a core component of the vehicle's air braking system.

III. Core Product Parameters

Structure Type: Single-cylinder piston water-cooled air pump, direct-drive to engine gears

Material: Gray cast iron pump body, alloy piston rings, high-temperature and wear-resistant cylinder liners

Operating Air Pressure: Rated 0.8MPa, compatible with vehicle air reservoir and dryer

Cooling Method: Engine water-cooled circulation, less prone to cylinder seizure under high-temperature conditions

Core Function: Continuously supplies compressed air to the vehicle's air brakes and pneumatic control mechanisms

Replacement Criteria: Slow inflation, insufficient air pressure, pump body oil leakage, abnormal noise, and cylinder oil leakage require complete replacement.