Quality replacement left-hand-thread steering tie rod end built to the ES423L industry interchange. Greaseable socket with a zerk fitting and dust boot. World American is the heavy-duty division of Midwest Truck & Auto Parts.Signs You Need a New Tie Rod End Excessive steering free play with the truck wandering and needing constant correction Clunking or knocking from the steer axle over bumps and at turn-in Steering shimmy or wobble at highway speed Rapid uneven or feathered steer tire wear Split or missing dust boot with grease thrown onto the brake drum Zerk will no longer take grease - socket packed or seized Measurable lash at the stud under pry-bar inspection Toe will not hold alignment after adjustment Specifications Manufacturer World American Part Number MW423L Rod Thread 1-1/8 in (1.125) - 12, left hand Stud Center to Rod End 5.44 in Stud Thread 7/8 in - 14 Stud Taper Major Diameter 1.102 in Geometry Straight Greaseable Yes - zerk fitting with dust boot Type / Side Meritor Type 1, roadside Cross ReferencesThis part replaces or is equivalent to the following part numbers: Meritor: R230068 TRW: ES423L Automann: 462.ES423L Dana Spicer: 140TR109 PAI: 9989 (ARE9989) STEMCO: QT967SS, QT108SB Mack: 8235-R230068 Dorman: T423L Delphi: TA2205 Mevotech: MES423L ApplicationsThis tie rod end covers a wide interchange, 1979 to 2017, including: Freightliner Century, Columbia and FL series Sterling Acterra and SC7000 Ford F-600 through L9000, plus F-650 and F-750 International medium and heavy chassis Hino 238 through 338 Blue Bird TC series and Thomas Saf-T-Liner buses Hendrickson lift axles Because the interchange is this broad, verify by measuring the rod thread (1-1/8-12 left hand) and the stud taper rather than by truck model. Confirm thread hand before ordering - the right-hand mate is a different part.