COIL AS-HEATER 4186839 - Caterpillar

( 22Z ) Loaders With Logging ArrangementsDescription of Change: New Duo-Cone Seals with new toric sealing rings are used in the final drive and wheel group of the above machines. High temperatures can cause hardening of the former toric sealing rings which can result in leakage. This is usually found on a machine that uses high energy stops (the brake discs become very hot and heat transfers into the wheel and seal ramp area). The new toric sealing rings are made of Viton and are more resistant to high temperature.Adaptable To: The new 9W55 Toric Sealing Ring is a part of the new 9W54 Duo-Cone Seal Group. The 9W55 Toric Sealing Ring and 9W54 Duo-Cone Seal Group directly replace 2M344 Sealing Ring and either 5M1176 or 9G5315 Seal Groups, respectively. The new seal ring and group are adaptable to first production.