29544515 ring Allison spare parts

29544515 ring Allison spare parts

Allison 29544515 ring is a high-performance rotary seal ring specially customized for Allison automatic transmissions. It is compatible with HD/B500, 4000RDS, T400 and other series transmissions. It is used to balance the position of the clutch piston and ensure the stability of the hydraulic oil circuit seal. It is a core sealing component for the repair and original factory replacement of transmissions in commercial vehicles and construction machinery.
This product is made of oil-resistant fluororubber/special engineering plastic composite material, and is formed by precision molding and dimensional calibration process. It has excellent anti-aging and anti-compression permanent deformation properties, and can continuously and reliably seal under the high temperature, high pressure and high speed rotation conditions of the gearbox, effectively preventing gearbox oil leakage, maintaining stable hydraulic pressure of clutch piston, and avoiding shift jerking, power loss and internal wear of the gearbox caused by seal failure.

Core technical parameters:

-Part Number: 29544515
– Compatible models: Allison HD/B500, 4000RDS, T400 series automatic transmissions
– Installation location: Rotary clutch balance piston seal
-Operating temperature: -40℃~180℃
-Applicable medium: Allison genuine transmission fluid
-Seal type: Dynamic rotary seal
– Precision standard: OEM original factory tolerance, fit clearance ≤ 0.02mm
– Service life: ≥8000 working hours, long maintenance-free cycle

Product advantages:

Original factory specifications match, no modification required for installation, easy replacement.
Oil and high temperature resistant, will not crack or soften with long-term use.
Excellent dynamic sealing performance reduces oil pressure loss and the risk of oil leakage.
Improve transmission operational stability and reduce downtime maintenance costs.
Suitable for heavy-duty applications such as trucks, buses, construction machinery, and oilfield equipment.

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