Part Number: JD254A, JD-254A. · Used on John deere 3029 4039 4045 6059 6068 series engines. Using JD-254A timing tool, align timing mark on fuel injection pump gear (B) with the timing tool. · For John Deere 3000 series tractors: 3100, 3110, 3200, 3200X, 3210, 3210X, 3300, 3300X, 3310, 3310X, 3400, 3400X, 3410, 3410X.
