SPROCKET TENSION flat throat for lawn tractor mower mower F72 castelgarden up to 2004 with belt drive DIMENSIONS: Outer diameter: 88 mm Inner diameter throat: 73 mm Height of throat: 40 mm Bore diameter: 8 mm Bore type: bearing type: flat throat CODE : 132021 456003 ORIGINAL CODE : 127604002/0 127604002 GGP castelgarden stiga alpina mountfield john deere