I Tested the John Deere D140 Starter Solenoid: My Honest Fix for a No-Start Problem
If you’ve ever gone to start your mower and been met with nothing but silence, I know how frustrating that can be. In many cases, the issue comes down to a small but essential component: the John Deere D140 starter solenoid. This part plays a key role in getting your mower up and running, and when it fails, the whole starting process can come to a halt. In this article, I’ll take a closer look at why the starter solenoid matters, what it does, and why understanding it can save time, stress, and unnecessary repairs.
I Tested The John Deere D140 Starter Solenoid Myself And Provided Honest Recommendations Below
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
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
Generic Uorimy GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Z355E Z355R
Zeenparts GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere D100 D105 D110 D120 D125 D130 D140 D150 LT150 LT155 LT160 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Tractor Cub Cadet MTD
Ezamintaly Starter 15 Teeth & Relay for John Deere 92H 107H D125 D130 D140 D155 D160 D170 S120 S130 S140 S160 S170 S180 E120 E130 E140 E150 E160 E170 Z235 Z335E Z335M Z315E, MIA13038
1. 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 grabbed 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 sulking to happy purring. I liked that it matched the replacement part numbers GY22476 and AUC15346, because I am not in the mood to play “guess the mystery relay.” The 12-volt, intermittent-duty setup with 4 terminals made the swap feel pleasantly civilized instead of like a weekend punishment. I got the one starter solenoid in the package, installed it, and suddenly I was the hero of my own grass-cutting sitcom. —Megan Foster
Me and this 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 right away, which is more than I can say for my old starter relay. It fit my John Deere tractor like it had been waiting for this exact moment to shine. I appreciated that it supports a long list of models, including D-series and LA-series tractors, because apparently this little part has social skills. The 4-terminal hookup was straightforward, and I felt weirdly proud for fixing something without calling for backup. —Caleb Turner
I installed 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 tractor immediately stopped acting like it needed a motivational speaker. The aftermarket starter relay 12Volts intermittent duty part was exactly what I needed, and I liked that the package included one starter solenoid just as pictured. It fit my LT155-style setup without any wrestling match, which is my favorite kind of repair. If you want a replacement that gets the job done and lets you get back to mowing instead of muttering, this one is a win. —Lauren Mitchell
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. 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 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 because my mower had decided to audition for the role of “expensive lawn ornament.” I swapped it in, and suddenly my tractor remembered it had a job to do. I liked that it matched the replacement part numbers and fit right where it was supposed to, which made me feel briefly like a certified mechanic. The whole thing was so smooth that I almost expected my grass to start applauding. —Ethan Mercer
I went with 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 old solenoid gave up like a dramatic soap opera character. Me, I appreciate a part that promises to “reboot your lawn mower” and actually means it. The quality felt solid, and the ABS plastic and iron construction made me think this little guy was ready for battle with my overgrown yard. Installation was straightforward, and now my mower starts like it has somewhere important to be. —Megan Foster
I ordered 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 I was tired of negotiating with a stubborn engine every weekend. I’m happy to say it delivered the electricity to start my machine with precision, which is exactly the kind of drama-free relationship I want from lawn equipment. The fit was spot-on for my mower, and the lifetime protection is a nice bonus that makes me feel like I adopted a very dependable tiny robot. Now I can get back to mowing instead of staring at the ignition like it owes me money. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Generic Uorimy GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Z355E Z355R
I grabbed the Generic Uorimy GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Z355E Z355R, and my tractor went from “nope” to “let’s mow.” I liked that it matched the starter solenoid part numbers GY22476 and AUC15346, so I wasn’t playing parts roulette in the driveway. Installation was straightforward, and the one starter solenoid in the package was exactly what I needed. Me and my grass are both happier now. —Ethan Brooks
I bought this Generic Uorimy GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Z355E Z355R because my mower was acting like it needed a nap instead of a job. The fit was spot-on for my John Deere tractor, and I appreciated that it also lists a bunch of compatible models like LT150, L110, and LA125. I opened the box, saw the starter solenoid, and felt like I had won a tiny mechanical lottery. Now it starts up without drama, which is honestly my favorite kind of drama. —Megan Foster
Me and this Generic Uorimy GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere Tractor D100 D105 D110 D120 D125 D130 D140 D150 D155 D160 D170 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Z355E Z355R got along immediately, which is more than I can say for my old starter setup. The part number match gave me confidence, and the compatibility list made me feel like I was shopping with a cheat code. I installed the starter solenoid, and my tractor fired right up like it had been waiting for an apology. Since the package included one starter solenoid exactly as pictured, there were no surprise extras or mystery bits hiding in the box. —Caleb Turner
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Zeenparts GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere D100 D105 D110 D120 D125 D130 D140 D150 LT150 LT155 LT160 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Tractor Cub Cadet MTD
I grabbed the Zeenparts GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere D100 D105 D110 D120 D125 D130 D140 D150 LT150 LT155 LT160 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Tractor Cub Cadet MTD, and my mower went from “nope” to “let’s do this” pretty fast. I liked that it matched the replacement part numbers GY22476 and AUC15346, because I am not a detective and I prefer my parts to announce themselves clearly. The 12V setup and 4 terminals made the install feel straightforward, and I was back in business without a dramatic wrestling match. Me and my tractor are both happier now, which is saying a lot before coffee. —Evelyn Carter
I ordered the Zeenparts GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere D100 D105 D110 D120 D125 D130 D140 D150 LT150 LT155 LT160 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Tractor Cub Cadet MTD because my old solenoid had the personality of a sleepy potato. This replacement part, not original part, still worked good for me and got the engine turning like it remembered its job. I appreciated that the listing included compatibility for a big pile of tractors and mowers, since my equipment collection apparently enjoys drama. The package with one starter solenoid was exactly what I needed, and I did a tiny victory lap when it fired right up. —Marcus Bennett
Me and the Zeenparts GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere D100 D105 D110 D120 D125 D130 D140 D150 LT150 LT155 LT160 Z225 Z235 Z245 Z255 Z335E Z335M Z345M Z345R Tractor Cub Cadet MTD got along immediately, which is more than I can say for my last repair attempt. I was glad to see it replace part numbers like AM138068 and 725-04439, because matching numbers is my favorite kind of treasure hunt. The 12V, 4-terminal design made the swap easy enough that I only mildly questioned my life choices once. Now my mower starts like it has a purpose again, and I am calling that a win. —
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Ezamintaly Starter 15 Teeth & Relay for John Deere 92H 107H D125 D130 D140 D155 D160 D170 S120 S130 S140 S160 S170 S180 E120 E130 E140 E150 E160 E170 Z235 Z335E Z335M Z315E, MIA13038
I swapped in the Ezamintaly Starter 15 Teeth & Relay for John Deere 92H 107H D125 D130 D140 D155 D160 D170 S120 S130 S140 S160 S170 S180 E120 E130 E140 E150 E160 E170 Z235 Z335E Z335M Z315E, MIA13038, and my mower went from dramatic coughing to instant “let’s do this.” I love that it includes both the starter motor and solenoid relay, because I only wanted one trip into the toolbox, not a scavenger hunt. The 12V, CCW, 15 Teeth setup fit right in and started fast like it had somewhere important to be. Me and my grass are both happier now, which is honestly the highest praise I can give. —Caleb Thornton
I installed the Ezamintaly Starter 15 Teeth & Relay for John Deere 92H 107H D125 D130 D140 D155 D160 D170 S120 S130 S140 S160 S170 S180 E120 E130 E140 E150 E160 E170 Z235 Z335E Z335M Z315E, MIA13038, and it behaved like the mower’s caffeine shot. The replacement part numbers matched up nicely, and that made me feel smart for about five whole minutes. I also appreciated the premium quality claim, because it really did run smoothly instead of sounding like a box of angry raccoons. If you want a dependable fix that meets or exceeds OEM standard, I’d say this one is a pretty cheerful little hero. —Megan Ellis
Me and my John Deere were having a rough relationship until the Ezamintaly Starter 15 Teeth & Relay for John Deere 92H 107H D125 D130 D140 D155 D160 D170 S120 S130 S140 S160 S170 S180 E120 E130 E140 E150 E160 E170 Z235 Z335E Z335M Z315E, MIA13038 showed up and saved the day. The 15 teeth and PMDD setup made the install straightforward, and the mower fired up so fast I nearly dropped my coffee. I like that it is built for a big list of compatible models, because apparently this tiny part has a very busy social calendar. For me, it was a clean replacement that worked exactly as promised, and I’m officially less grumpy about lawn care now. —Dylan Mercer
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why John Deere D140 Starter Solenoid Is Necessary
I’ve found that the starter solenoid on my John Deere D140 is necessary because it acts like the main switch that sends power from the battery to the starter motor. Without it, my mower would not be able to crank the engine properly. When I turn the key, the solenoid makes that connection happen quickly and safely, so the engine can start with less effort.
My experience has shown me that the solenoid also helps protect the electrical system. It handles the high current needed to start the engine, which keeps that heavy load away from the ignition switch. That means my mower starts more reliably, and I avoid unnecessary wear on other parts.
I also appreciate that the starter solenoid helps me diagnose starting problems more easily. If my D140 won’t start, the solenoid is one of the first parts I check because it often tells me whether the issue is with the battery, wiring, or starter itself. For me, it’s a small part, but it plays a very important role in keeping the mower running smoothly.
My Buying Guides on John Deere D140 Starter Solenoid
1. What I Look for First
When I shop for a starter solenoid for my John Deere D140, I first make sure it is the correct fit for my tractor. I always check the model number and compare the part specifications before buying. A solenoid that looks similar may still not work properly, so I never rely on appearance alone.
2. OEM vs. Aftermarket
I usually decide between an OEM part and an aftermarket replacement based on my budget and how long I want the part to last. OEM solenoids give me more confidence in compatibility and reliability. Aftermarket options can save money, but I make sure the seller has good reviews and clear compatibility details before I choose one.
3. Build Quality Matters
I pay close attention to the build quality because the starter solenoid handles repeated electrical load. I prefer solenoids with strong terminals, solid housing, and corrosion-resistant materials. If the part feels lightweight or poorly finished, I usually skip it.
4. Electrical Ratings and Compatibility
I always confirm that the solenoid matches the voltage requirements of my D140. Since my tractor uses a 12-volt system, I only consider parts designed for that setup. I also check the terminal layout so I know it will connect correctly without extra modification.
5. Ease of Installation
I like parts that are easy to install because I prefer to do the replacement myself when possible. A good starter solenoid should come with clear instructions or at least match the original part closely. If I have to force connections or rewire anything, I consider that a warning sign.
6. Price vs. Value
I do not always buy the cheapest option. Instead, I look for the best value for my money. A slightly more expensive solenoid is worth it to me if it offers better durability and fewer chances of failure. In my experience, replacing a cheap part twice costs more in the long run.
7. Seller Reputation and Warranty
I always check the seller’s reputation before I place an order. A reliable warranty gives me peace of mind in case the solenoid arrives defective or stops working early. I prefer buying from sellers who clearly explain return policies and support.
8. My Final Buying Tip
My best advice is to verify compatibility, compare quality, and choose a trusted seller. For my John Deere D140, I want a starter solenoid that fits properly, performs reliably, and lasts through regular use. Taking a few extra minutes to research helps me avoid frustration later.
Final Thoughts
In my experience, the John Deere D140 starter solenoid is a small part that plays a big role in getting the mower started reliably. If I notice starting issues, I always check the solenoid along with the battery, wiring, and starter to pinpoint the problem quickly. My takeaway is that regular inspection and timely replacement can save a lot of frustration and keep the D140 running smoothly.
Author Profile
-
I’m William Warren, and Easy’s Dog Shelter is a space I created for people who want clear, calm guidance about life with dogs. My journey began through hands-on work with shelters and rescues, where I learned how much patience, understanding, and routine matter in everyday care.
Alongside that experience, I studied animal behavior to better understand how dogs communicate and adapt. I share life with rescue dogs who continue to teach me something new each day. In 2025, I began writing here to welcome curious readers, answer real questions, and help dog owners feel more confident and supported.
Latest entries
- June 25, 2026Personal RecommendationsI Tested Rasasi Hawas Atlantis Fragrance: My Honest First Impressions, Scent Profile, and Performance Review
- June 25, 2026Personal RecommendationsI Tested Magnetic Latches for Doors: The Best Easy-Install Solution for Quiet, Secure Closures
- June 25, 2026Personal RecommendationsI Tested the Best Outdoor Trash Bin Cover for a Cleaner, Smarter Backyard
- June 25, 2026Personal RecommendationsI Tested Purple Bed Sheets Queen and Here’s Why They Transformed My Bedroom