29544497 Torque converter housing assembly Allison spare parts

29544497 Torque converter housing assembly Allison spare parts

The 29544497 torque converter housing assembly is an OE-grade integrated load-bearing component specifically developed for Allison 3000/4000 series heavy-duty automatic transmissions. It is widely used in heavy-duty equipment equipped with Allison 3000/4000 series transmissions, such as heavy-duty trucks, mining machinery, port cranes, construction machinery, and oilfield equipment. As the mounting carrier for the core components of the hydraulic torque converter (pump impeller, turbine, stator), it connects the engine crankshaft and the transmission input shaft, undertaking the core functions of power transmission connection, internal oil sealing, external impurity protection, and load bearing.

The 29544497 torque converter housing assembly features an integrated die-cast structure design, perfectly matching the working principle of a hydraulic torque converter. It provides a sealed space for the stable operation of the pump wheel, turbine, and stator, ensuring the ATF (Automatic Transmission Fluid) circulates within the housing, achieving flexible power transmission and torque multiplication. This torque converter housing assembly is factory-specified and requires no additional modification. It precisely addresses industry pain points such as deformation, leakage, and installation deviations in traditional housings, preventing transmission failures caused by housing malfunctions, including power transmission interruptions, fluid leaks, and component wear. This extends the overall service life of the transmission, reduces secondary maintenance costs, and meets the core requirements of modern heavy equipment for “high rigidity, high sealing, and long-term stability” of load-bearing components.

Core technical parameters:

– Product Model: 29544497
– Material Specifications: Body (ZL108 high-strength aluminum alloy, die-cast, aged heat treatment, hardness HB 110~130), surface treated with anodizing + anti-corrosion coating.
– Operating temperature: -40℃~190℃
– Mechanical and sealing performance: tensile strength ≥320MPa, compressive strength ≥500MPa, flexural strength ≥280MPa; static leakage rate ≤5×10⁻⁷Pa·m³/s, sealing test pressure ≥3.5MPa.
– Structural parameters: outer diameter of housing 380mm, inner diameter 280mm, height 120mm, mounting flange hole diameter 12mm (6 evenly distributed), positioning stop diameter 180mm, sealing groove width 8mm, depth 3mm, tolerance ≤ ±0.02mm.
– Corrosion and wear resistance: Double protection with surface anodizing and anti-corrosion coating, wear rate ≤0.001mm/1000 hours
– Compatible Models/Scenarios: Core compatibility with Allison 3000 series (3000HS/3200HS) and 4000 series (4000HS/4500HS) heavy-duty automatic transmissions, widely used in heavy-duty equipment such as heavy trucks, construction machinery, mining equipment, port equipment, and oilfield equipment. As the core mounting carrier for hydraulic torque converters, it is suitable for torque converter overhauls, housing replacement due to damage, and overall transmission maintenance. It can directly replace the original corresponding model housing assembly and is suitable for complex working scenarios such as heavy loads, high-frequency vibration, heavy oil contamination, and high temperature and pressure.
– Service life: Under normal heavy-load conditions, the service life can reach more than 25,000 hours.

The 29544497 torque converter housing assembly, with its precise original factory fit, superior load-bearing capacity, reliable sealing performance, and long-term durability, has become the core preferred component for the repair and overhaul of Allison 3000/4000 series heavy-duty transmission hydraulic torque converters. We strictly control the entire production process; each product undergoes full dimensional accuracy inspection, non-destructive testing, airtightness testing, mechanical performance testing, and corrosion resistance testing to ensure compliance with original factory standards, GB/T 10856-2006, JB/T 10762-2007 standards, and industrial usage requirements. We also provide comprehensive after-sales support and standardized packaging for bulk purchases, along with installation and positioning guidelines, to solve various problems encountered by customers during procurement and use. It is suitable for the bulk use needs of repair shops, transmission overhaul centers, and heavy equipment after-sales stations, helping heavy equipment transmission power transmission systems achieve long-term stable and efficient operation.

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