29565564 kit-conversion,accumsealsw/piston Allison spare parts

29565564 kit-conversion,accumsealsw/piston Allison spare parts

The Allison 29565564 kit-conversion, accumsealsw/piston boasts core advantages such as reliable sealing, pressure resistance, stable rebound, and strong adaptability. It is widely used in heavy-duty trucks, buses, construction machinery, mining equipment, oil well workover rigs, fire trucks, and other equipment equipped with Allison gearboxes. It is a key repair kit for repairing accumulator pressure decay, eliminating soft shifting, controlling oil pressure shock, and ensuring smooth clutch engagement.
The Allison 29565564 kit-conversion, accumsealsw/piston, built upon Allison’s stringent production standards and comprehensive repair design, continues the brand’s consistent high-quality DNA. It integrates upgraded pistons, high-precision accumulator seals, support gaskets, guide components, and other complete parts into a single overhaul kit solution. This addresses the pain points of ordinary individual parts, such as poor sealing, easy aging, pressure leakage, oil spillage, piston jamming, and significant shifting shock. It has become the preferred conversion repair kit for Allison transmission accumulator system repair, valve plate overhaul, and transmission assembly remanufacturing in the industry. This product uses high-elasticity fluororubber oil seals and high-strength wear-resistant piston materials. The sealing lip is precision-molded, and the piston surface is smooth and wear-resistant. The entire set of components has undergone oil pressure sealing tests, oil resistance tests, high and low temperature aging tests, and reciprocating fatigue tests, significantly improving the accumulator’s pressure holding performance and service life. Its core function is to restore the pre-pressure function of the energy storage device, absorb oil pressure pulsation, buffer shifting shock, stabilize the clutch engagement speed, adapt to complex working conditions such as high oil pressure, frequent shifting, continuous heavy load, and high and low temperature changes, reduce faults such as shifting delay, shock, slippage, and excessive oil temperature caused by seal failure, and extend the stable operation cycle of the transmission.

Core technical parameters:

Product Model: Allison 29565564
Product Name: Kit-Conversion, Accumsealsw/Piston (Storage Conversion Repair Kit/Seals + Piston Assembly)
Compatible models: Allison 3000/4000 series and other heavy-duty automatic transmission energy storage mechanisms
Materials: Seals are made of fluororubber (FKM), pistons are made of wear-resistant aluminum alloy/engineering plastics, and gaskets are made of high-strength steel.
Sealing performance: 100% static and dynamic pressure tested, no internal leakage, no seepage, stable pressure retention.
Operating temperature: -40℃～150℃; resistant to ATF transmission fluid, anti-aging, and resistant to compression set.
Working hydraulic pressure: Adaptable to 80–300 PSI system hydraulic pressure, with excellent buffering effect.
The components include: 1 accumulator piston, 1 main seal, several auxiliary seals, and several guide/support gaskets (complete set).
Installation features: Original factory size matching, direct installation replacement, no modification required, complete energy storage unit overhaul in one go.
Features: Upgraded conversion kit, improving cushioning performance and durability, superior to ordinary sealing kits.
Applicable scenarios: Transmission overhaul, energy accumulator repair, shift shock fault repair, valve plate assembly remanufacturing

The Allison 29565564 kit-conversion, accumsealsw/piston is manufactured strictly according to Allison’s original equipment manufacturer (OEM) specifications. All parts undergo rigorous factory testing for dimensional accuracy, sealing performance, wear resistance, and durability to ensure complete consistency with OEM parts, achieving seamless replacement and one-time repair. With high integrity, high reliability, and high cost-effectiveness, this product meets the needs of various scenarios including transmission overhaul shops, parts distributors, exporters, and fleet maintenance. It widely serves industries such as logistics, construction, mining, emergency rescue, and petroleum equipment, effectively restoring transmission oil pressure buffering and shift smoothness, reducing repair rates and downtime costs. It is the preferred overhaul kit for Allison transmission energy storage system repair and remanufacturing.

Get a personalized quote now