This is an authentic OEM part for use with Craftsman Lawn Tractors. The interlock switch disables the ignition system if it detects the lawn tractor is started or running in unsafe operating conditions. This part is sold individually. The most common reasons for replacing the clutch interlock switch are when the mower won't start or starts when the brake is not depressed. The tool needed to replace the seat switch plunger is a -+ inch socket.
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★★★★★
★★★★★
Fixed in minutes
After having my riding mower for more than a decade the seat safety switch went bad I quickly received my new seat switch installed it in no time and was back to the business of mowing
Guest - October 15, 2021
Verified Purchase
★★★★★
★★★★★
worked great
this is easy to install just lift up the mower seat and 5 min later you're done.
Eckbert - March 19, 2022
Verified Purchase
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1. Replaced both coils and charged up battery.
2. Belts dry rotted; replace belts
3. Safety switches inoperative; bypassed to start machine
4. Deck in bad shape; needs sand blasting and welding, painting afterward
5. Replaced all blades, most were bent, pulleys all rusted, sand papered.
6. Reassembled a
... Read morell parts and tested lawn mower.
7. The deck was difficult to reassemble and remount on bottom of mower, no special tools required.
1. Removed battery and disassembled tray.
2. Placed battery on footrest and reconnected.
3. Diagnosed starter system (see Sears video with Wayne).
4. Removed mower deck.
4. Removed brake interlock switch.
5. Ordered parts.
6. Fabricated patch and reattached mounting point on mower deck.
7. Install
... Read moreed interlock switch, and addition parts to overhaul.
8. Reinstalled mower deck, battery tray and battery.
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Engine would not shut off after replacing magnetos/coils and diode engine kill device
To be really safe, disconnect the negative side of the battery from the black wire.
1. For ignition switch remove the battery if it makes it easier to grab the harness plugged into the switch.
2. Remove the wire harness plug from the old switch. Be careful not to break the retaining parts of the wire harness while re
... Read moreleasing it from the ignition switch.
2. Squeeze the retaining clips on the switch so you can remove it out of the dash board. Use pump pliers if it helps to squeeae the retainers.
3. If the wires will reach, bring them through the hole in the dash and plug the harness back in to the new switch before you push the it back into the hole on the dash. Otherwise, just plus in the harness after installing the new switch in the dash.
Seat safety switch.
1. Lift up the seat.
2. Disconnect the plugged in wires from the plunger switch. Be careful not to break off the retaining parts of the wire plug.
3. Remove nuts an bolts that are retaining the switch mounting plate under the seat. Pay attention to how the seat springs are installed so you can put them back in right. You may not have to take them all out to get enough access to remove the switch.
4. Squeeze the retaining clips on opposite sides of the switch. Pump pliers can help here if you need more power to let the switch pass through the plate it is mounted in.
5. Remove the switch and install the new one.
6. Remount the plate under the seat with the new switch installed.
7. Plug in the wire harness.
Note: This did not fix the problem, just gave me two new switches. To fix the problem I had to install a simple toggle switch to ground the wire from the engine kill diode to the engine. I never could see how the diode actually killed the engine under the old orginal wiring. I installed the diode and the coils exactly like the old one had been. It is still a mystery to me but the engine runs great and now I can shut it off. I just switch the ground off to start and run the engine. Another problem may have been a poorly reinstalled safety switch under the PTO clutch after I took it off to check it for continuity.
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
