Technical guide for Meritor Tire Inflation Systems by PSI updated

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ArvinMeritor and Pressure Systems International have updated their technical guide covering the Meritor Tire Inflation System (MTIS) by PSI to include information about ThermAlert, which is designed to detect increased wheel-end temperatures and help alert drivers to stop for repairs before serious damage can occur. This early warning helps reduce the potential risk, cost and downtime associated with wheel loss, wheel end failures, and trailer fires.

The tire inflation system is a robust, simple design easily installed on any type of trailer, the companies say. ThermAlert, an option with the Meritor Tire Inflation System (MTIS) by PSI, is now available on new trailers assembled with Meritor-prepped TN, TQ and P-spindle profile trailer axles. The updated literature can be obtained by going to or