undercoverpoe
Member
Well Googling “John Deere 425 PTO Switch” didn’t do me any good other than waste $20.
Looks pretty close here right?
Looks pretty close here right?
Snow PTO Switch Help and General Part Buying
- Thread starter undercoverpoe
- Start date
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OP
undercoverpoe
Member
Well it’s a different pin configuration. 
Note the bottom of my old switch has two NOT close together. The new switch has two close together.
Note the bottom of my old switch has two NOT close together. The new switch has two close together.
OP
undercoverpoe
Member
So I guess this isn’t the right switch for my Early 425? I wish there was a part supplier that I can actually use my serial number to see if I’m buying the right part number. Or even find a parts blue up where I can actually find the part I need. Where the F**K is the pto switch in any diagram? Any help would be appreciated
OP
undercoverpoe
Member
Bottom of old switch for your reference to help identify it vs the one I bought
Peter 315
Super Member
farmeratheart
Platinum Member
Hi Undercover. In June of 2016 I replaced the pto switch on my 925m ztr. The geometry of the pins is the same as your old switch. The part# from my Deere dealer was TCA21027. I’m sure because I kept the old switch as a spare since replacement did not fix my issue back then 
.
Good luck.
Frank
. Good luck.
Frank
beenthere
Super Star Member
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What part number were you trying to match up for the PTO switch?
jdparts shows part # A-B1EM48 for the 425 PTO switch. Serial number above or below 70000 ?
Amazon.com: A&I Products PTO Switch Parts. Replacement for John Deere Part Number B1EM48: Industrial & Scientific
joecdeere
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it's the same switch above and below the 70,000 serial break
A&I aftermarket # A-B1EM48
Deere # LVA21437
Zebrafive
Super Member
It's NOT same switch for above and below serial number 70,000
LVA21437 & A-B1EM48 is for 70,000 and below.
AM21438 is for 70,001 and above.
LVA21437 & A-B1EM48 is for 70,000 and below.
AM21438 is for 70,001 and above.
Zebrafive
Super Member
The P/N you bought is for serial numbers 70,001 and above. You need P/N LVA21437 OR A-B1EM48