29555245 Bolt Allison spare parts

29555245 Bolt Allison spare parts

The Allison 29555245 Bolt, Patchlock, 5/16-24×5/8inch (Patchlock Bolt) is an original factory-grade anti-loosening fastening component for Allison transmissions. It precisely fits Allison 1000/2000/3000/4000 series heavy-duty automatic transmissions and is also compatible with commercial vehicles and construction machinery from brands such as Mercedes-Benz, DAF, and Peterbilt that use Allison transmissions. As a core fastening element for various critical components of the transmission, its core function is to firmly secure the transmission housing, shift mechanism, interface modules, and sealing components through the precise 5/16-24×5/8inch size and Patchlock anti-loosening structure. It offers excellent anti-loosening performance, effectively resisting bolt loosening caused by vehicle vibration and heavy-duty impacts, preventing malfunctions caused by loose component connections. It is widely used in heavy-duty vibration scenarios such as long-haul freight, mining operations, urban public transportation, and construction projects. With strong adaptability, reliable fastening, and durable anti-loosening properties, it is the preferred replacement part for original factory maintenance and repair, perfectly meeting the fastening requirements of heavy-duty transmissions.

Core technical parameters

–Model: 29555245
– Product Name: Bolt
– Operating temperature: -40°C to +120°C
– Product specifications: Thread size 5/16-24, bolt length 5/8 inch (approximately 15.88 mm), head is external hexagonal design.
– Product weight: 0.02kg
– Product Type: Genuine Patchlock anti-loosening bolts, single pack, featuring an external hexagonal head design, integrated Patchlock anti-loosening structure, and precise size matching 5/16-24×5/8 inch (thread size 5/16-24, length 5/8 inch).
– Compatible Systems: Allison 1000/2000/3000/4000 series heavy-duty automatic transmissions, also compatible with commercial vehicles and construction machinery from brands such as Mercedes-Benz, DAF, and Peterbilt equipped with Allison transmissions. It is suitable for transmission mounting scenarios in heavy-duty commercial vehicles, mining wide-body trucks, and construction vehicles, and is used to fix key parts such as transmission housings, shifting mechanisms, interface modules, and sealing components.
– Core material: High-strength carbon steel with a hardness of up to 8.8; surface treated with galvanizing/chrome plating.
– Suitable operating conditions: Suitable for heavy-duty, high-frequency vibration, and complex environmental scenarios such as long-distance freight, mining operations, urban public transportation, and engineering construction.

Product Advantages

1. Original factory fit, precise specifications: 100% match Allison 29555245 original factory specifications, 5/16-24×5/8inch thread size is accurate, head design and anti-loosening structure are completely consistent with the original, can directly replace old bolts without modifying the mounting hole position, and the compatibility covers multiple scenarios such as commercial vehicles and construction machinery.
2. Patchlock anti-loosening, reliable fastening: Integrated with a dedicated Patchlock anti-loosening structure, eliminating the need for additional anti-loosening components, it effectively resists bolt loosening caused by vehicle vibration and heavy-load impact, providing a long-lasting fastening effect and preventing malfunctions caused by loose component connections.
3. High-strength material, durable: Made of 8.8 grade high-strength carbon steel, with strong tensile and shear resistance, and galvanized/chrome-plated surface, it is corrosion-resistant and rust-proof. It has been tested under harsh working conditions and has a long service life, which can effectively extend the bolt replacement cycle.

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