Meritor 3131704 MTIS Thru Tee Assembly 5 Inch Dual Tire

The Meritor 3131704 is a genuine MTIS (Meritor Tire Inflation System) Thru Tee Assembly designed for heavy-duty commercial vehicle applications. This 5-inch brass assembly routes air through a centered passage optimized for dual-tire ProPar axle layouts, enabling automatic tire inflation by allowing air to flow between dual wheels.

Key Features:

• Brass thru-tee construction with stainless steel tube for corrosion resistance and durability
• Includes integrated tee vent and protective shield
• 5-inch length configuration supports symmetrical hose routing to both wheel positions
• Compatible with TP axles featuring ConMet iron hubs or aluminum hubs
• Screws directly into hubcap for secure installation with HN tapered spindles
• Straightforward design integrates with existing MTIS components without requiring bracket modifications

This component maintains optimal tire pressure in dual-tire applications, improving safety and tire longevity. The metal body provides a firm connection point that stabilizes routing brackets and protective sleeving around inflation hoses. Replaces Meritor part numbers 31315-04 and 31316-04. Backed by a standard 1-year Meritor aftermarket warranty.