TOOTHED MULCHING BLADE FITS EXMARK 116-5174-SSPECIFICATIONS: LENGTH 20 1/2" CENTER HOLE 15/16" WIDTH 2 1/2" FITS:EXMARK LAZER HP, CT, PHAZER, QUEST, SP AND PIONEER, SERIAL NO. 600,000 AND BELOW; LAZER Z AS, ASX, XP, XS, E, S, X, D, FRONT RUNNER, TURF RANGER AND VANTAGE, SERIAL NO. 540,000 AND HIGHER; REQUIRES 3 FOR 60" DECKREPLACES OEM: 103-6383, 103-6383-S, 103-6393, 103-6393-S, 103-6398, 103-6398-S, 103-6403, 103-6403-S, 116-5174, 116-5174-SREPLACES AFTERMARKET: 302-623, 11469, 392-025, 504-00068, 596-749, 96-749, B1EM1880, B1EM1892, B1SB11242, B1SB11248, B1SB11249, B1SB11469Warning:Lead-Nickel-Cancer and Reproductive Harm