29510665 Pump Assembly Allison spare parts

29510665 Pump Assembly Allison spare parts

The Allison 29510665 pump assembly, as the core power component of the Allison transmission hydraulic system, is known as the “power heart” of the transmission. Its core function is to provide a stable and high-pressure hydraulic oil supply to the transmission hydraulic system, drive the clutch, brake and other actuators, and at the same time filter and stabilize the hydraulic oil, regulate the system pressure, ensure smooth gear shifting and smooth power transmission, and avoid faults such as shifting jams, component wear and power interruption caused by insufficient oil supply and unstable pressure. It ensures the efficient and stable operation of the entire transmission, extends the service life of the transmission, and reduces maintenance costs and downtime losses.

Core technical parameters:

-Part Number: Allison 29510665
– Material specifications: Made of high-quality cast iron (HT250) or aluminum alloy (ADC12).
– Structure type: It adopts a one-piece precision casting/die casting structure; built-in pressure regulating device and check valve; reserved precision mounting holes, positioning pin holes and hydraulic interface; the seals are made of nitrile rubber.
– Dimensional parameters: Length 180-350mm, width 120-280mm, thickness 15-30mm, mounting hole diameter φ8-18mm, hole spacing error ≤0.02mm, hydraulic interface diameter φ10-25mm, dimensional tolerances controlled within GB/T 1804-2000 m-level accuracy, and dimensional specifications conforming to GB/T 10892-2011 gear pump dimensional tolerance requirements.
– Performance indicators: Temperature range -40℃ to 220℃; oil resistance grade conforms to GB/T 1226-2010 standard; working pressure range 0.8-3.5MPa, rated pressure 2.5MPa, oil supply flow rate 5-20L/min, pressure fluctuation ≤±0.1MPa; transmission efficiency ≥95%.
– Applicable Scenarios: Specifically adapted for Allison series transmissions, widely used in commercial vehicles, heavy trucks, construction machinery, mining equipment (such as the Allison transmissions in the Terex TR50/TR60 series), and other equipment equipped with Allison transmissions. It is used for high-pressure oil supply, pressure regulation, and oil filtration in the transmission hydraulic system, undertaking the core tasks of oil supply, pressure stabilization, filtration, and power transmission. It can be used for original parts replacement, transmission repair and maintenance, and is suitable for complex working conditions such as heavy load, high-frequency vibration, heavy oil contamination, high temperature and high pressure. It provides continuous power support for the stable operation of the transmission hydraulic system and helps the equipment operate efficiently.

Core product advantages:

1. Precise factory matching: Strictly matches the original part number of Allison 29510665, requiring no hole modification or adapter, and can be installed directly in the original position.
2. High-pressure stabilizing oil supply: Rated pressure 2.5MPa, working pressure range 0.8-3.5MPa, pressure fluctuation ≤±0.1MPa, stable oil supply flow, built-in pressure regulating device and check valve, which can automatically stabilize the hydraulic system pressure.
3. Wear-resistant, oil-resistant, and durable: Made of high-quality cast iron/aluminum alloy materials, combined with carburized and quenched alloy steel gears, it has excellent high pressure resistance, wear resistance, and fatigue resistance. Its oil resistance level meets industry standards, and there is no performance degradation even after long-term immersion. The seals are compatible with transmission fluid, ensuring reliable sealing performance and preventing hydraulic leakage.
4. Low noise, energy saving and high efficiency: The optimized involute gear meshing design has high meshing accuracy, transmission efficiency ≥95%, significant energy saving effect, and operating noise ≤55dB, achieving low noise and stable operation.
5. Easy to install and maintain: The one-piece molded structure has reserved precise installation holes, positioning pin holes and hydraulic interfaces. The holes are chamfered to remove burrs. No complicated tools are required, and two people can quickly complete the installation and disassembly. The structural design is simple and the later maintenance is convenient.

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