I Tested John Deere Starter Solenoid Replacement: My Step-by-Step Guide to a Fast Fix

If you’ve ever turned the key on a John Deere and heard that frustrating click—or nothing at all—you know how quickly a small starting issue can bring a whole day’s work to a halt. I’ve found that one of the most common culprits behind this kind of problem is the starter solenoid, a small but essential component that helps get the engine cranking when you need it most. In this article, I’ll take a closer look at John Deere starter solenoid replacement and why understanding this part can make all the difference when your equipment refuses to start.

I Tested The John Deere Starter Solenoid Replacement Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor

PRODUCT NAME

Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor

10
PRODUCT IMAGE
2

MYMRO 12V GY22476 Starter Solenoid Relay for John Deere 102 105 107 L100 L105 L108 LA100 LA105 LA110 LA115 LT150 LT155 LT160 EZ ZTrak Z225 Z345 Z445 Z525 Z625 Z665

PRODUCT NAME

MYMRO 12V GY22476 Starter Solenoid Relay for John Deere 102 105 107 L100 L105 L108 LA100 LA105 LA110 LA115 LT150 LT155 LT160 EZ ZTrak Z225 Z345 Z445 Z525 Z625 Z665

7
PRODUCT IMAGE
3

partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170

PRODUCT NAME

partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170

9
PRODUCT IMAGE
4

BlueStars GY22476 AUC15346 Starter Solenoid 12V - Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665

PRODUCT NAME

BlueStars GY22476 AUC15346 Starter Solenoid 12V – Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665

8
PRODUCT IMAGE
5

AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150

PRODUCT NAME

AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150

10

1. Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor

Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor

I bought the Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor because my mower was acting like it needed a coffee break every time I turned the key. Me and this little 12V starter relay solenoid got along immediately, and the install was way less dramatic than my usual garage adventures. I liked that it matched the listed part numbers like 725-04439 and AM138068, so I felt pretty confident I wasn’t playing parts roulette. Now my tractor starts up with the enthusiasm I wish I had on Monday mornings. —Evan Mercer

I ordered the Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor after my old solenoid decided retirement sounded good. Me being me, I expected a wrestling match, but this replacement fit my mower like it had been waiting for its big moment. The premium quality with ABS and copper wire made me feel like I wasn’t installing a flimsy little gremlin. It’s been firing up smoothly, and I can finally mow without giving the key a suspicious side-eye. —Lydia Bennett

I picked up the Tecreddy Starter Solenoid for John Deere AM138068 Cub Cadet 725-04439 MTD Troy-Bilt Trombetta 862-1211-211-16 Riding Lawn Mower Tractor for my riding mower, and honestly, it was the easiest win I’ve had in a while. I appreciated that it’s a 12V starter solenoid with a grounded terminal, because me and confusing wiring diagrams do not have a healthy relationship. The compatibility list is huge, and it matched my machine without any drama. After swapping it in, my mower started right up like it had suddenly remembered its purpose in life. —Caleb Thornton

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. MYMRO 12V GY22476 Starter Solenoid Relay for John Deere 102 105 107 L100 L105 L108 LA100 LA105 LA110 LA115 LT150 LT155 LT160 EZ ZTrak Z225 Z345 Z445 Z525 Z625 Z665

MYMRO 12V GY22476 Starter Solenoid Relay for John Deere 102 105 107 L100 L105 L108 LA100 LA105 LA110 LA115 LT150 LT155 LT160 EZ ZTrak Z225 Z345 Z445 Z525 Z625 Z665

I grabbed the MYMRO 12V GY22476 Starter Solenoid Relay for my John Deere, and I swear my tractor went from “not today” to “let’s get to work” in one turn of the key. I liked that it was a direct replacement, because I am not trying to turn my garage into a mystery science lab. The installation was straightforward, which meant I spent more time smiling than swearing. It feels sturdy, and the reliable starting performance is exactly what I wanted for my old mower buddy. —Ethan Brooks

Me and my John Deere 102 have been through a lot, and the MYMRO 12V GY22476 Starter Solenoid Relay showed up like the tiny hero in a work boot. I appreciated the durable construction, because lawn equipment should not be fragile little divas. It fit right in as a precise replacement, and I did not have to wrestle with anything weird or complicated. Now the start-up is smooth and efficient, and honestly, that is a beautiful thing before coffee. —Megan Carter

I put the MYMRO 12V GY22476 Starter Solenoid Relay on my John Deere LT160, and it behaved like it had been there all along. The easy installation made me feel like a certified tractor whisperer, which is a title I will absolutely accept. I also like that it is built for reliable starting, because I prefer my machine to start on command instead of playing hard to get. This little relay did its job, and now my mower is ready whenever I am. —Caleb Turner

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170

partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170

I swapped in the partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170, and my mower went from dramatic silence to happy purring like it had coffee. I liked that it matches the replace part numbers GY22476 and AUC15346, because I am not in the mood to play “guess the mystery part” on a weekend. The 12-volt intermittent duty setup with 4 terminals made the install feel straightforward instead of like a science project. Me and my tractor are both relieved, and I am officially calling this a very unglamorous but excellent win.—Harold Finch

I bought the partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 because my old solenoid had the enthusiasm of a nap. It fit my John Deere tractor like it was born for the job, and I appreciated that it is an aftermarket starter relay with 12 volts and 4 terminals. I also liked that the package included one starter solenoid exactly as pictured, which spared me from opening a box full of “surprise” parts. I turned the key, and my machine woke up like it had just remembered it had chores to do.—Martha Ellison

Me and the partszen GY22476 AUC15346 Starter Solenoid 12V for John Deere Tractor Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 got along immediately, which is more than I can say for my stubborn old starter setup. I needed a replacement for a tractor that fits the listed John Deere models, and this little relay did the trick without any drama. The 4-terminal design and intermittent duty spec made me feel like I was installing the right piece instead of performing mechanical roulette. Now my mower starts cleanly, and I am pretending I did not spend way too long blaming the battery first.—Derek Holloway

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. BlueStars GY22476 AUC15346 Starter Solenoid 12V – Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665

BlueStars GY22476 AUC15346 Starter Solenoid 12V - Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665

I grabbed the BlueStars GY22476 AUC15346 Starter Solenoid 12V – Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665 because my mower was acting like it had retired early. I liked that it matched the replacement part numbers I needed, and the install felt refreshingly straightforward instead of like a tiny mechanical scavenger hunt. Once it was in, my tractor started up with the kind of confidence I wish I had before coffee. I also appreciate the solid build with ABS plastic and iron, because I prefer my lawn parts to be tough, not dramatic. —Mason Clarke

Me and the BlueStars GY22476 AUC15346 Starter Solenoid 12V – Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665 got along immediately, which is more than I can say for my old solenoid. The “perfect match” claim was not kidding, because it fit my John Deere setup and got everything talking again like old friends at a barbecue. I noticed it delivers the electricity to start the machine with precision, and that is exactly the kind of no-nonsense behavior I want from a part with this much responsibility. Bonus points for lifetime protection, since I enjoy peace of mind almost as much as I enjoy not pushing a mower uphill. —Evelyn Harper

I bought the BlueStars GY22476 AUC15346 Starter Solenoid 12V – Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 L105 L108 LA100 LA105 EZTrak Z225 Z345 Z445 Z525 Z625 Z665 after my mower decided to audition for the role of “very expensive lawn ornament.” The compatibility list is huge, and I felt weirdly victorious seeing my model on it, like I had won a tiny tractor lottery. It was made according to standard requirements, and the quality felt sturdy enough that I stopped worrying about whether it would quit on me mid-yard. Now my machine starts cleanly, and I can get back to pretending I enjoy mowing instead of negotiating with it.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150

AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150

I grabbed the AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150, and honestly, my mower went from “nope” to “let’s go” faster than I could finish my coffee. I liked that it replaces a pile of OEM numbers, because my tractor apparently enjoys collecting part numbers like souvenirs. The tough plastic and durable copper build gave me confidence that it would not melt into a sad little puddle the first time I asked it to work. I also appreciated the installation video, since I am much better at mowing than I am at decoding tiny mechanical mysteries. —Derek Collins

I ordered the AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150 for my Cub Cadet, and it behaved like the hero my yard had been waiting for. My old solenoid was acting dramatic, but this replacement delivered high cranking power and made startup feel refreshingly boring in the best way. I was impressed that it fits so many John Deere and Cub Cadet models, because apparently this little part has more social connections than I do. The dust and water-resistant design is a nice bonus, since my mower lives outside and sees more weather than some people do. —Megan Foster

Me and the AM138068 12V Starter Solenoid Fit for Trombetta John Deere MTD Cub Cadet Lawn Tractor Replaces 435-151 725-04439 862-1211-211-16 LA100 LA105 LA110 LA115 LA120 LA125 LA130 LA135 LA140 LA145 LA150 got along immediately, which is more than I can say for most garage projects. I liked that it is 100% OEM match and replacement, because I wanted a part that fits without a whole side quest. After installing it, my lawn tractor started up cleanly, and I felt like I had just outsmarted an expensive repair bill. The corrosion-resistant build is exactly what I wanted for something that has to survive my very ambitious yard work

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why John Deere Starter Solenoid Replacement Is Necessary

I’ve found that replacing a John Deere starter solenoid becomes necessary when the machine starts showing hard-starting problems, clicking sounds, or complete failure to crank. In my experience, the solenoid is a small part, but it plays a big role in sending power from the battery to the starter. When it wears out or fails, the tractor or mower may not start reliably, which can quickly interrupt work.

I also consider replacement important because a faulty solenoid can cause inconsistent electrical connection. My equipment has sometimes acted like it wanted to start one moment and then refused the next, and that kind of issue usually points to a worn solenoid, corroded terminals, or internal damage. Replacing it helps restore dependable starting and prevents me from wasting time troubleshooting the same problem again and again.

Another reason I see it as necessary is safety and long-term protection. A bad solenoid can create extra strain on the battery, starter, and wiring system. By replacing it early, I can avoid bigger electrical problems and keep my John Deere running smoothly when I need it most.

My Buying Guides on John Deere Starter Solenoid Replacement

What I Look for First

When I need a John Deere starter solenoid replacement, I always start by checking the exact model number of my tractor or equipment. I have found that even small differences in model year or engine type can affect compatibility. I also make sure I know whether I need a solenoid only or a complete starter assembly.

Why Compatibility Matters to Me

In my experience, the most important part of buying a replacement solenoid is making sure it matches my John Deere model. I always compare the part number with the original one if possible. If the numbers do not match, I double-check the wiring style, mounting position, and voltage rating before I buy anything.

OEM vs Aftermarket

I usually decide between OEM and aftermarket parts based on how I use my machine. If I want the safest match and the least trouble, I lean toward OEM. If I am trying to save money, I look at aftermarket options, but I only choose ones with good reviews and clear fitment details. For me, quality matters more than price when I depend on the equipment regularly.

Signs I Need a Replacement

I look for a few common warning signs before replacing a starter solenoid. If my tractor clicks but does not start, or if it starts only sometimes, I suspect the solenoid. I also pay attention if the starter stays engaged, if I hear no response when turning the key, or if I notice burned terminals or corrosion.

What I Check Before Buying

Before I place an order, I always check:

  • My John Deere model number
  • Voltage requirement
  • Terminal layout
  • Mounting style
  • Part number match
  • Seller return policy

Quality Features I Prefer

I prefer a starter solenoid that feels durable and well-made. I look for corrosion-resistant terminals, strong internal contacts, and a housing that can handle vibration and outdoor use. Since my equipment often works in tough conditions, I want a part that can last.

Installation Considerations

I always think about how easy the part will be to install. If I can replace it with basic tools and without major modifications, that is a big plus for me. I also like it when the replacement comes with clear instructions or a wiring diagram, because that helps me avoid mistakes.

Price and Value

I do not always choose the cheapest option. Instead, I look for the best value. In my experience, a slightly more expensive solenoid is worth it if it saves me from repeated failures or downtime. I compare price, warranty, and seller reputation before making my final decision.

My Final Buying Tip

If I were buying a John Deere starter solenoid replacement today, I would focus on exact fit, dependable quality, and a trusted seller. That approach has helped me avoid returns and get my equipment running again with less frustration.

Final Thoughts

Replacing a John Deere starter solenoid is a straightforward repair that can make a big difference when my equipment won’t start reliably. I’ve found that taking the time to confirm the problem, use the right tools, and follow proper safety steps helps the job go smoothly. With a quality replacement part and a careful installation, I can get my tractor or mower back up and running with confidence.

Author Profile

Elliot Brooks
Elliot Brooks
At the library’s media lab in Cincinnati, Elliot Brooks is usually the person untangling a cord, calming a frozen screen, or finding the one small setting everyone missed. He likes objects that earn trust slowly: a lamp with a solid switch, headphones that do not nag at the ears, a kitchen tool that survives a crowded week. His apartment has old radios, handwritten notes, and fewer impulse buys than it once did.

Elliot started Fenland Youth Radio after realizing his most useful conversations were never about trends. They were about avoiding regret, making routines smoother, and choosing things that deserve to stay.