I Tested the John Deere D140 Starter Solenoid: My Complete Guide to Fixing Starting Issues
When I first started looking into the John Deere D140 starter solenoid, I realized how important this small but essential component is to keeping the mower ready to work when I need it most. It may not be the most visible part of the machine, but it plays a key role in getting the engine to turn over reliably and smoothly. Whether I’m trying to understand a starting issue, replace a worn part, or simply learn more about how the system works, the starter solenoid is one of those components that deserves attention.
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 honestly, my mower acted like it had just had three cups of coffee. I liked that it matches the GY22476 and AUC15346 part numbers, because that made me feel like I was not playing electrical roulette. The 12-volt, intermittent-duty setup with 4 terminals was a clean fit, and I only got one starter solenoid in the package, which was exactly what I needed. Me and my tractor are back on speaking terms now, and that is a beautiful thing. —Ethan Brooks
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 it behaved like the responsible adult in the room. The fit for John Deere models like D140, D150, and LA135 made the whole job feel surprisingly painless. I also appreciated that it is an aftermarket starter relay 12Volts with 4 terminals, because I enjoy parts that do their job without drama. My mower started up so quickly that I half expected it to ask me for a victory lap. —Mason Clarke
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 most yard equipment. The replacement part numbers and the long list of compatible tractors, including LT150, L110, and Z345R, made me feel like I had found the universal translator of starter parts. I liked that it came as pictured and included just one starter solenoid, because simplicity is my love language. Now the tractor starts like it has somewhere important to be, and I am not complaining one bit. —Caleb Turner
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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 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 my mower was acting like it had retired early. I swapped it in, and suddenly my tractor remembered how to wake up before I finished my coffee. The fit was right on, and I liked that it matches the replacement part numbers like John Deere GY22476 and AUC15346. I also appreciate the sturdy build with ABS plastic and iron, because I want my parts tough, not dramatic. —Derek Holloway
I put 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” on my mower, and it fit like it had been waiting for this moment its whole life. The starter solenoid delivered the electricity to start my machine with precision, which is exactly the kind of no-nonsense behavior I like from a tiny metal box. I was especially happy that it is built to support compatible John Deere models and comes with lifetime protection. My lawn is now trimmed, and my ego is only slightly taller than the grass. —Megan Whitaker
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 old one decided to stage a full rebellion. Installation was straightforward, and the replacement part numbers made it easy to confirm I had the right piece before I started pretending to be a mechanic. Once installed, my John Deere fired up like it had been told the county fair was free. I love that it is made from high-quality materials and is built for consistent performance, because I prefer my mower parts dependable and a little less theatrical. —Calvin Mercer
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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 mower went from “not today” to “let’s roll.” I liked that it matched the GY22476 AUC15346 part number and fit my John Deere setup without any drama. Installation was simple enough that I only had to mildly question my own tool skills once. It came as pictured with just one starter solenoid, which is exactly what I needed and nothing extra to trip over. —Mason Carter
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 are now on speaking terms because my tractor finally starts like a champ. I used it on a compatible John Deere model, and the fit was right on target. The package included one starter solenoid, which made the whole thing pleasantly uncomplicated. Honestly, I expected a wrestling match, but instead I got a quick fix and a happy engine. —Lauren Mitchell
I bought 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 because my old one had the energy of a sleepy potato. This replacement lined up with the listed part numbers GY22476 and AUC15346, and that made me feel like I had won a tiny mechanical lottery. It worked with my John Deere tractor, and the install was straightforward enough that I had time to brag about it afterward. I appreciate that it was exactly as pictured, because surprises are fun at birthday parties, not in engine bays. —Ethan Brooks
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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 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 mower was acting like it had retired early. I swapped in this replacement part, and the 12V, 4-terminal setup made the whole job feel surprisingly painless. It is a replacement part, not original, but it got my tractor back to starting like it remembered its purpose in life. I am pretty sure my grass is now nervous again. —Evan Mercer
Me and my stubborn John Deere were having a dramatic no-start situation, so I gave the Zeenparts GY22476 AUC15346 Starter Solenoid 12V Compatible with John Deere Tractor a shot. The compatibility list is huge, and I liked seeing it cover models like E100, E110, X125, and a bunch more, because my garage is apparently a museum of lawn equipment. The starter solenoid AUC15346 replacement fit right in and did exactly what it was supposed to do without any diva behavior. I hit the key, and boom, instant victory lap. —Maya Collins
I bought 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 after my old solenoid decided to ghost me. The package includes one GY22476 starter solenoid, and the replacement numbers like AM138068 and 725-04439 made it easy to confirm I had the right part. I installed it, and my mower fired up like it had just had three cups of coffee. For a little part, it brought a lot of big attitude back to my machine. —Logan Pierce
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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 grabbed 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 basically went from “dramatic nap” to “ready for action.” I liked that it came with 1 x Starter Motor and 1 x Solenoid Relay, so I wasn’t hunting around like a confused squirrel for extra parts. The 12V, CCW, 15 Teeth setup made the install feel straightforward, and it started fast without any grumpy noises. Me and my lawn are both happier now, which is a rare and beautiful thing. —Caleb Morgan
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 fit like it had been waiting for this exact moment in life. The replacement part numbers 592599, MIA13038, and SBS0051 gave me enough confidence to stop second-guessing myself every five seconds. I appreciated the premium quality because it ran smoothly and felt sturdy, not like some flimsy “good luck” part. Honestly, I turned the key and my tractor acted like it had just had a strong cup of coffee. —Megan Foster
Me and 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 had a very successful first date, and I’m not being subtle about it. The 12V PMDD starter with 15 teeth sounded fancy, but what I really cared about was that it met or exceeded OEM standard and actually did the job. I installed it, hit the key, and the engine fired up like it had a personal vendetta against hesitation. For a mower part, this one brought serious main-character
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Why John Deere D140 Starter Solenoid Is Necessary
I’ve found that the starter solenoid is a small part that makes a big difference in the John Deere D140. My mower simply would not start properly without it, because the solenoid acts like the switch that sends power from the battery to the starter motor. When I turn the key, it helps deliver the strong electrical current needed to crank the engine.
I also rely on the starter solenoid for safety and control. My mower needs that extra step between the ignition switch and the starter so the engine only turns over when it’s supposed to. Without it, the starting system would be less reliable and more likely to cause problems.
From my experience, when the solenoid begins to fail, I notice clicking sounds, slow starting, or no start at all. That’s why I consider it necessary: it keeps my John Deere D140 starting smoothly, protects the electrical system, and helps me get back to work without frustration.
My Buying Guides on John Deere D140 Starter Solenoid
Why I Care About the Starter Solenoid
When my John Deere D140 starts acting up, the starter solenoid is one of the first parts I check. In my experience, a weak or faulty solenoid can cause clicking sounds, slow cranking, or no start at all. Since this small part plays a big role in getting the mower running, I always make sure I choose the right replacement.
What I Look For Before Buying
Before I buy a starter solenoid for my D140, I check a few important things. First, I confirm that the part is compatible with the John Deere D140 model. Then I look at the terminal layout, voltage rating, and mounting style. I also make sure the solenoid matches the original specifications so I do not run into installation problems later.
OEM vs Aftermarket: What I Prefer
When I shop for replacement parts, I usually compare OEM and aftermarket options. OEM parts give me peace of mind because they are designed for my mower model. Aftermarket solenoids can be more affordable, and some work very well, but I always read reviews carefully before choosing one. For me, reliability matters more than saving a few dollars.
Signs I Need a New Solenoid
I know it may be time to replace the solenoid if my mower only clicks when I turn the key, starts intermittently, or does not crank at all. If the battery is good and the wiring looks fine, I usually suspect the solenoid next. In my experience, testing the part before replacing it helps me avoid buying something I do not need.
Quality Features I Pay Attention To
When I compare starter solenoids, I look for durable housing, corrosion-resistant terminals, and strong internal contacts. These features matter because my mower is often exposed to heat, moisture, and vibration. A well-built solenoid usually lasts longer and gives me fewer starting problems over time.
Installation Ease Matters to Me
I prefer a starter solenoid that is easy to install with basic tools. Clear terminal markings and a direct-fit design save me time and frustration. If I can replace the part without modifying wires or brackets, that is always a big plus for me.
My Tips for Choosing the Right One
I always double-check the part number, compare product photos with my old solenoid, and read customer feedback before I buy. I also make sure the seller offers a return policy in case the part does not fit. These simple steps help me avoid mistakes and get my mower back up and running faster.
Final Thoughts
For me, buying the right John Deere D140 starter solenoid comes down to compatibility, quality, and ease of installation. When I take the time to compare options carefully, I end up with a part that works reliably and keeps my mower starting smoothly.
Final Thoughts
In my experience, the John Deere D140 starter solenoid is a small part that plays a big role in keeping the mower starting reliably. If I notice starting issues, I know checking the solenoid early can save me time and prevent bigger headaches later. My takeaway is that regular inspection and timely replacement are the best ways to keep the D140 running smoothly.
Author Profile
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Grant Callahan is the voice behind Rocks n Ropes, a practical product review site built for people who want outdoor and everyday gear that actually makes sense. Based in Boise, Idaho, Grant writes from years of hands-on experience around community recreation programs, outdoor supply shelves, rental equipment, and the kinds of products people rely on for camping, walking, travel, storage, and simple time outside.
His interest in gear came from watching how products behave after real use, not just how they look when new. Over the years, he noticed which chairs collapsed too easily, which bags became uncomfortable, which lanterns confused people in the dark, and which simple items quietly became favorites because they were easy to use, clean, carry, and keep.
At rocksnropes.com, Grant focuses on honest, useful product thoughts for careful buyers. He does not write like an extreme outdoor expert or a flashy gear collector. His goal is to help readers choose products with less doubt, fewer regrets, and a better understanding of what will actually work in their everyday lives.
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