29536874 Pump Assembly Allison spare parts

29536874 Pump Assembly Allison spare parts

The Allison 29536874 pump assembly is specifically designed for Allison 3000/4000 series and off-road series transmissions. It is widely used in the hydraulic supply parts of transmission systems in heavy-duty trucks, construction machinery, oilfield equipment, and off-road vehicles. It plays a key role in delivering hydraulic oil to the transmission, providing hydraulic power for shifting, and assisting in lubrication and heat dissipation. It is suitable for the complex working conditions of heavy-duty and high-frequency operation. It is a core component to ensure smooth shifting, sufficient lubrication, and reduce transmission failures. It is also a high-performance, cost-effective hydraulic consumable for industrial equipment maintenance.
As the “core hub of power supply” for the transmission’s hydraulic and lubrication system, the Allison 29536874 pump assembly’s core function is to draw transmission fluid from the oil pan through power, filter it, and deliver it to various hydraulic actuators and lubrication points in the transmission. This provides stable hydraulic power for gear shifting, ensuring smooth and seamless shifting. Simultaneously, it provides continuous lubrication for core components such as transmission gears and bearings, removing heat generated during component operation, aiding in heat dissipation, and reducing frictional losses. Furthermore, it regulates hydraulic system pressure, maintaining stable system pressure and preventing component failures caused by excessively high or low pressure.

Core technical parameters:

– Product Model: Allison 29536874
– Surface treatment: Precision grinding + rust and corrosion prevention treatment, uniform hardness, strong wear resistance, smooth and burr-free surface, reducing oil flow resistance, excellent wear resistance, corrosion resistance, and aging resistance, low coefficient of thermal expansion, and high-temperature dimensional stability.
– Dimensions: Precisely conforms to Allison original specifications. Standard pump body diameter is 80-100mm, total length is 120-150mm, and the interface thread is M16 (please consult customer service for detailed dimensions). Pump body clearance standard is 0.07-0.15mm, and impeller tip clearance standard is 0.11-0.14mm. It is suitable for gearbox hydraulic installation and pipeline connection requirements, with a precision level of P6 and dimensional tolerances strictly conforming to original factory standards.
– Rated performance: Operating temperature range -40℃~150℃, suitable for complex high and low temperature environments; rated operating pressure 0.8-1.5MPa, pressure fluctuation ≤±0.05MPa, oil transfer efficiency ≥95%; rated flow rate 15-25L/min, stable operation without shaking, vibration and noise ≤55dB; excellent sealing performance, sealing pressure ≥1.8MPa, preventing leakage.
– Compatible Equipment: Allison 3000/4000 series and off-road series transmissions; transmission systems for various heavy-duty trucks, construction machinery, oilfield equipment, and off-road vehicles; compatible with transmissions for Mercedes-Benz, Volvo, Terex, and other related heavy-duty equipment.

The Allison 29536874 pump assembly focuses on the specific hydraulic power supply needs of Allison transmissions. Utilizing precision CNC machining, high-quality high-strength alloy steel, and precise clearance control technology, it balances practicality, reliability, and cost-effectiveness. Integrating core advantages such as stable pressure, efficient oil delivery, and superior sealing, it is suitable for the complex and heavy-duty operating conditions of heavy equipment, providing continuous and stable support for transmission shifting and lubrication. It can perfectly replace the original pump assembly and is also compatible with various hydraulic supply components in similar Allison transmissions, completely solving the maintenance pain points of general-purpose pump assemblies, such as poor compatibility, easy wear, unstable pressure, low oil delivery efficiency, and poor sealing. Whether purchased in bulk for equipment overhauls, routine maintenance, or for single-unit emergency replacement, this product provides a stable and reliable hydraulic power supply, contributing to the long-term and safe operation of equipment.

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