John Deere Original Equipment Extension Spring - M112505

John Deere Original Equipment Extension Spring - M112505. Specs: End Type(ALPHA): 03/04. Wire Diameter(IN): 0.11. Outside Diameter(IN): 1. Free Length(IN): 8.46. Spring Rate(LBF/in or N/mm)(LBF/IN): 8.45. Initial Tension (LBF or N)(LBF): 15.28. Number of Coils(UNITY): 49. Material(ALPHA): A15-7. Finish(ALPHA): K-Painted. Fits the Following John Deere Models: 47 IN., 47 IN. SNOW BLOWERS, 48 IN., 54 IN., 60 IN., F510, F525, F710, F725, F735, X320, X324, X340, X500, X520, X534, X540. This is a OEM John Deere Part.