About this item Replace Part Number: 117-2221 137-4100 1172221 1374100 116-0229 1160229 430-120 Compatible models: Toro Z Master 2000, 4000, 5000, 6000 Series; TITAN Series; TimeCutter series Compatible models: ExMark Lazer Z E-Series, Lazer Z X-Series, Lazer Z S-Series Zero Turn Mower 3 Position 5 Terminals: 3 Position Ignition starter controls 3 functions: STOP-On-Start. There are 5 terminals on the back of the switch Easy to Install: It only takes a few minutes to replace your lawn mower ignition switch. Please check your OEM number carefully