OE Replacement Assembly. OE Reference: Wabco System Saver 1200 air Dryer and Meritor R955205, Wabco 4324130010, 955205 ,TDAR955205, 8235R955205. Fit: Volvo, Freightliner, Kenworth, Peterbilt, International, Western Star Trucks. Specifications: Inlet port 1/2" NPT , Outlet port 1/2" NPT, Control port 1/4" NPT. Includes: 1pc 12V Air Dryer, 3pcs Screws, 3pc Lock Washers, 1pc Heater Power Harness, 1pc Pressure-Controlled Check Valve.