One New Aftermarket Replacement Fits John Deere Cylinder Head (with Seats & Valve Guides) that fits Tractor models: 440 (Early), 420, 430

PLEASE NOTE: The Valve Seats must be Final Machined and the Guides must be Reamed to Fit the Valve Stems

Does Not include Valves, Springs or Studs

CUSTOMER IS RESPONSIBLE FOR ALL FINAL MACHINING, including Head Surfacing if needed