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Original Equipment Extension Spring – M134312 This fits Riding mower models: 120, 140, 180, 240, 245, 260, 265, 285, 300, 312, 314, 316, 317, 318, 320, 322, 325, 330, 332, 335, 345, 355D, G100, G242, GX325, GX335, GX345, GX355, GT225, GT235, GT235E, GT245, LX172, LX173, LX176, LX178, LX186, LX188 and LT170. Sabre models: 1848GV, 1848HV, 1842GV, 1842HV, 1948GV, 1948HV, 2048HV, 2148HV, 2254HV, 2354HV and 2554HV. Scotts models: S2048, S2148, S2254, S2348 and S2554. This is a genuine part. Thanks for looking!