29528544 Body,MainControlValve Allison spare parts

29528544 Body,MainControlValve Allison spare parts

The Allison 29528544 Body, Main Control Valve is specifically designed for Allison automatic transmissions in heavy commercial vehicles, engineering vehicles, and special vehicles. It is core-compatible with Allison 5000/6000 series automatic transmissions and is widely used in various scenarios that rely on precise transmission control, such as long-haul trucks, public buses, and construction machinery. It perfectly meets the core needs of repair shops, parts dealers, fleet maintenance, and engineering equipment maintenance, and is a high-quality solution for solving valve body sticking, oil circuit blockage, pressure regulation failure, and shift jerking.
This product strictly adheres to Allison’s stringent production standards, inheriting the brand’s technological advantages in the field of heavy-duty automatic transmissions. It is precision cast from high-strength ductile iron, which significantly improves tensile strength, deformation resistance, and pressure resistance compared to ordinary cast iron valve bodies. It can easily withstand the high-pressure impact of the transmission’s internal hydraulic system, adapting to the complex operating conditions of the hydraulic control system and providing a stable mounting and protective carrier for the internal precision oil circuits and valves.

Core technical parameters:

– Product Model: Allison 29528544
– Product Name: Body, Main Control Valve
– Compatible transmissions: Allison 5000/6000 series automatic transmissions (compatible with 5-speed and 6-speed models manufactured after 2005, covering models compatible with heavy commercial vehicles and engineering vehicles)
– Material specifications: High-strength ductile iron precision casting, base material tensile strength ≥400MPa, hardness HRC 30-35, elongation ≥5%.
– Working pressure: Normal operating pressure range 0.8-1.5MPa, maximum withstand pressure ≤2.0MPa, pressure control accuracy ≤±0.05MPa
– Operating temperature: -40℃~160℃
– Core dimensions: Length 180mm, Width 120mm, Height 95mm, Mounting hole spacing 40mm
– Machining accuracy: Roughness Ra of the inner wall of the oil passage ≤ 0.6μm, flatness ≤ 0.012mm
– Surface treatment: Precision machining + cathodic electrophoresis anti-corrosion treatment, achieving an IP67 anti-corrosion rating.

The Allison 29528544 main control valve body boasts irreplaceable advantages in precision, pressure resistance, and operational stability. Its precise hydraulic circuit design and high-strength cast material ensure accurate hydraulic oil regulation and smooth oil flow, preventing malfunctions such as shift jerking, poor clutch engagement, and power transmission issues caused by valve body deformation, oil circuit blockage, or pressure regulation failure. This also reduces maintenance frequency and downtime, providing fleet maintenance, repair shops, and engineering equipment maintenance with a cost-effective and reliable spare part option, helping to improve operational efficiency. As a core component of the transmission hydraulic control system, its operational precision and stability directly determine the transmission’s shifting effect and power transmission efficiency. It is the “core hub” ensuring the efficient and smooth operation of the AT transmission, perfectly meeting the precise control requirements of heavy-duty commercial vehicles under high load and complex operating conditions.

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