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 Meritor Tire Inflation System (MTIS™)

MTIS Close UpProperly inflated tires significantly impact operating costs. From reducing wear and tear to increasing fuel economy, keeping tires at the right pressure results in immediate cost benefits.

For more than 20 years, the market-leading MTIS by P.S.I. has eliminated concerns about tire pressure loss.

More than 500,000 trailers and 3 million tires are equipped with MTIS worldwide. It keeps proper and even tire pressure at all times and offers simple, proven features backed by Meritor’s comprehensive support network.

 
 
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 Products

MTIS by P.S.I. can be installed on all major trailer axle models in North America and is available for new trailers and can be retrofitted on trailers already in service.

How it worksMeritor Tire Inflation System:

  1. Pressurized air from the tanker air supply travels along the air supply line to a filter.
  2. Air is filtered through a self-draining filter to remove any impurities.
  3. Pressurized air flows into the control box where the pressure is regulated to the pre-set tire psi.
  4. Regulated air flows from the control box through the hollow axle tube to the rotary union ("Thru Tee").
  5. Air is transmitted as needed via the rotary union, through the tire hoses and into the tires.

 
 

 Features and Benefits

Extended tire life:Meritor Tire Inflation System
  • Underinflation results in increased and uneven wear, which drives up the frequency of tire replacement. By maintaining tire pressure at all times, MTIS extends tire life by 10 percent.    

Increased fuel economy:
  • MTIS by P.S.I. increases fuel economy by an average of 1.4 percent, according to a Federal Motor Carrier Safety Administration (FMCSA) study.  

Decreased maintenance costs:
  • Tire manufacturers recommend checking tire pressure at least twice a month, but with MTIS, the time and effort spent on tire inspections decreases dramatically.  

Improved safety:
  • MTIS by P.S.I. significantly reduces the risk of tire blowouts and the potentially costly and dangerous consequences. Moreover, the ThermALERT™ wheel-end heat sensing technology option helps prevent wheel-end failures from heat build-up.  

Fewer roadside assistance calls:
  • Tires are the top reason for costly service calls, many of which can be attributed to simple underinflation. MTIS by P.S.I. virtually eliminates those calls.  

Fewer tire violations and fees:
  • The Federal Motor Carrier Safety Administration monitors tire conditions and can impose fees on fleets that operate trailers with unacceptable tires. MTIS by P.S.I. significantly reduces the risk of such fines.
 
 
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 Applications

MTIS is available on virtually any trailer application from on-highway dry van, to vocational models.

  • Specified on new, retrofitted on in-service trailers.
  • Installed on any type of trailer.
  • Installed on any trailer suspension axle brand.

 
 
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 Savings

The value of MTIS by P.S.I. is clear. It is one of the easiest and most effective trailer upgrades you can do to improve your fleet profitability.

The average annual cost savings per trailer with the MTIS:

Item Description Saving
Tread wear Based on 10 percent extended tire life of eight tires traveling 100,000 miles per year and a cost of $400 per tire. $200
Maintenance Based on 20 minutes twice per month spent checking and filling tires by a tire professional at $25 per hour. $200
Fuel Based on 1.4 percent fuel-economy improvement, assuming 100,000 miles per year at 6 mpg and $4 per gallon of fuel. $930
Tire downtime and replacement Based on one service call every two years, including direct cost, downtime and a replacement tire. $630
Total $1,960

Calculate precisely how much MTIS can save you at our MTIS Savings Calculator.

 
 

 Support

Meritor's support systems ensure that you have all the assistance you need when using our products.

DriveForce™

Meritor's field sales force handles your commercial vehicle needs cradle to grave. Learn more at the dedicated DriveForce™ section of our customer center.

OnTrac

OnTrac customer support center agents are dedicated to assist dealer, fleet and end-user customers with diagnostics, technical support and warranty mediation (agents fluent in Spanish and French available). Find out more at our dedicated Warranty Support section.

Warranty

All trailer products are backed by Meritor's comprehensive industry-leading warranty.

Aftermarket Parts

Meritor's Aftermarket business supplies replacement parts for trucks, trailers, buses and vans across the globe under a number of respected industry-leading brand names. Find out more at our dedicated Aftermarket Products section.