Easy
15-30 minutes
It is a genuine manufacturer-sourced component which is specially made for use with riding lawn mowers and garden tractors. This is an identical replacement for a missing or a faulty part that was installed on a new unit. The switch disables the ignition system if it detects the lawn tractor is started or running in unsafe operating conditions. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this part. Keep in mind this high-quality plastic body switch is sold individually.
Switch Interlock 725-04363
OEM part for: Yard Machines, MTD
Part Number: 725-04363
$15.26
In Stock
Ships within 1 business day 
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Compatibility
This Switch Interlock will fit the following 4053 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Lawn Tractor Parts
Customer Part Reviews ?
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Parts matched bolted right on
Parts fit bolted right on
Guest -
March 23, 2024
Verified Purchase
just what i needed
perfict match
Guest -
July 5, 2023
Verified Purchase
Worked as expected
The switch arrived quickly, was an easy install and got my riding mower running again....
Guest -
June 5, 2023
Verified Purchase
Removed one small screw, unpluged connector, installed new part in reverse. Correct part, easy replacment. Great service!!
Fast delivery, part fit perfectly, problem solved. I highly recommend this company !!!!
Guest -
April 2, 2023
Verified Purchase
Parts
A+replacement parts,fast shipping,GREAT company
Guest -
January 19, 2023
Verified Purchase
1 of 2 switches needed for mower.
fit good, mower good as new. slight delay in getting switches, but worth the wait.
Guest -
September 24, 2020
Verified Purchase
You have a great staff. Give them a raise
Perfect
Guest -
October 2, 2019
Verified Purchase
Plug
Thanks for the very quick turnaround. So very easy to find the part on your website. It worked perfectly. Great price, too. Thanks
Guest -
June 4, 2019
Verified Purchase
Easy install and worked as expected
Good replacement part for the original installed in my Yard Machine lawn tractor. Switch lined up perfect with the engagement lever and the mower started right up once this new safety switch was installed.
Thanks to eReplacementParts for making it so easy to find and order the right parts for my repair jobs every time!
Guest -
May 27, 2019
Verified Purchase
Easy repair. Right part.
Was what i ordered and perfect fit. Will continue to do buisness with.
Greg -
April 22, 2019
Verified Purchase
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
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We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Switch Interlock
RIDING MOWER WORKS GOOD AFTER 15-20 MINIUTES OF MOWING I DUMP THE GRASS CATCHER START MOWER UP AND ENGAUGE BLADES AND IT KILLS THE THE MOTOR LET IT COOL OFF AND IT WORKS FINE.
Kenneth
for model number 13APA1CT056
asked on 2023-10-28
Hello Kenneth, thank you for your question. A clogged carburetor and cause the engine to stall. If the carburetor is clogged, try cleaning it with carburetor cleaner. Or, It is possible that you are getting a vapor lock when the fuel evaporates when the fuel lines get to hot. We hope this helps.
eReplacementParts Team October 28, 2023
i CAN NOT GET MY MOWER TO TURN OVER. REPLACED THE BATTERY STILL NO TURN OVER. WHAT DO I NEED TO DO TO TROUBLE SHOOT?
STEVE
for model number TB 30 TROY BUILT REAR ENGINE MOWER
asked on 2022-03-31
Hi Steve,
Thank you for your question. If your engine is not turning over when you try to start it, check the spark plug. If the spark plug is loose, tighten it and make sure that the cap is fitted on it securely. If the spark plug is dirty clean or replace it. If the air filter is dirty, you will need to clean or replace it. If fuel is not reaching the engine, you will need to check the carburetor, the fuel filter and the fuel lines. Once you have determined the part you need, please feel free to call customer service. We are open 7 days a week and anyone will be happy to assist you. We look forward to hearing from you!
eReplacementParts Team March 31, 2022
Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Blades would not engage.
David - May 31, 2017
👍 16 of 23 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
1. Downloaded electric schematic from the internet.
2. Used multimeter to find the faulty switch.
3. Ordered a new switch.
4. Removed old switch and replaced with the new switch.
5. Mowed lawn.
2. Used multimeter to find the faulty switch.
3. Ordered a new switch.
4. Removed old switch and replaced with the new switch.
5. Mowed lawn.
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Interlock switch malfunctioned and needed to be replaced.
Paul - February 2, 2019
👍 4 of 6 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set
Parts Used
No special instructions required. Simply removed the faulty switch, replaced it and reconnected the wiring harness.
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Interlock switch bad
DAVID - June 9, 2018
👍 6 of 10 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
One screw out one screw in. Hint said for wont start, 100% time change that switch, like a charm works fine. I am very happy with outcome.
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Pto and inter lock broke
Rich - May 15, 2023
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Pliers, Socket set, Adjustable Wrench
It took 1 hour to finish. Had to remove a cover then had to remove the pto engage arm off. Then had to fish it around the motor and then fish the new cable around the motor and hook it to the pto then the pto arm. It's still loose have to buy the pto it's self.
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engine would not start.
Bob - April 2, 2023
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Nutdriver
Parts Used
Removed one small screw, removed wiring connector, installed new switch and the problem was solved. took less than 15 minutes to complete the job. easy fix.
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Interlock Switch was bad
Harrison - June 5, 2021
Tool Type
Lawn Tractor
Difficulty
Medium
Time
15-30 minutes
Tools Used
Socket set
Parts Used
Tested the Interlock Switch for Continuity then Replaced the Interlock Switch
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would'nt start
Barry - June 5, 2020
Tool Type
Lawn Tractor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set
simple replacements
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would not start
Bill - October 26, 2019
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
Replaced switch
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would not start
don - January 27, 2019
👍 2 of 4 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set
installed switch interlock
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motor cut out
craig - July 5, 2020
👍 0 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
Parts Used
replaced interlock switch located on deck
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Thanks for voting and helping fellow customers!
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
