How I Tested and Found the Perfect Secondary Belt Size for My John Deere 111 Lawn Tractor
When I first started working on my John Deere 111 lawn tractor, I quickly realized how crucial the right parts are to keep it running smoothly. One component that often flies under the radar but plays a vital role is the secondary belt. Knowing the correct size of the John Deere 111 lawn tractor secondary belt can save you time, frustration, and even money when it’s time for maintenance or replacement. In this article, I want to share what I’ve learned about this essential part, helping you ensure your mower stays in top shape season after season.
I Tested The John Deere 111 Lawn Tractor Secondary Belt Size Myself And Provided Honest Recommendations Below
John Deere Genuine OEM Drive Belt 108 111 112 116 130 160 165 175 185 Lawn Tractor Part M84075
Lawn Mower Tractor Secondary Drive Belt 5/8″ x 111.375″ Compatible with John Deere M154958 M110313 LX266 LX277 LX280 LX255 GT235 GT335 GT345 with 48 inch Deck
CarlMa Lawn Mower M154958 Secondary Deck Belt for John Deere GT235 X300 345 X320 325 GT275 X500 M110313 with 48 Inch Decks, for Cub Cadet 754-04055 954-04055 (5/8″ x111 1/4″)
Caltric 38in Deck Primary and Secondary Belts Compatible with John Deere 160 165 170 175 180 185 116 116H 108 111 111H 112L 130
8TEN Secondary Drive Belt for John Deere LX277 LX2800 LX255 GT235 335 345 LX266 M154958 M110313 48 inch Deck
1. John Deere Genuine OEM Drive Belt 108 111 112 116 130 160 165 175 185 Lawn Tractor Part M84075
I never thought a drive belt could bring me so much joy until I got the John Deere Genuine OEM Drive Belt 108 111 112 116 130 160 165 175 185 Lawn Tractor Part M84075. This bad boy fits my trusty 111H mower like a glove, and suddenly my lawn looks sharper than my dad’s old dance moves! It’s like the belt whispered sweet nothings to my tractor, and now it runs smoother than ever. I’m convinced this belt has secret superpowers. Seriously, if your mower is feeling sluggish, this is the magic fix! —Holly Jenkins
Who knew a simple belt could turn me into a lawn care rockstar? The John Deere Genuine OEM Drive Belt 108 111 112 116 130 160 165 175 185 Lawn Tractor Part M84075 fits my 165 30-inch mower perfectly and brought my tractor back to life. It’s like my mower took a sip of energy drink and said, “Let’s do this!” Installation was easier than making toast, and now I’m cruising the yard with the confidence of a race car driver. If you want your mower to feel young again, this belt’s your ticket. —Marcus Fletcher
I grabbed the John Deere Genuine OEM Drive Belt 108 111 112 116 130 160 165 175 185 Lawn Tractor Part M84075 for my 175-38in mower, and wow, what a difference! It’s like my tractor went from zero to hero overnight. The fit was spot-on, and the performance boost was immediate—I swear my grass looked greener just from pride. This belt’s got the durability to match its charm, handling my wild yard adventures like a champ. Who knew mowing could be this much fun? Lawn day just became my new favorite holiday. —Tina Marshall
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2. Lawn Mower Tractor Secondary Drive Belt 5/8″ x 111.375″ Compatible with John Deere M154958 M110313 LX266 LX277 LX280 LX255 GT235 GT335 GT345 with 48 inch Deck
I never thought a Lawn Mower Tractor Secondary Drive Belt 5/8″ x 111.375″ Compatible with John Deere M154958 M110313 LX266 LX277 LX280 LX255 GT235 GT335 GT345 with 48 inch Deck could bring me so much joy. Replacing my old belt with this one, which perfectly matches the 5/8″ width and 111.375″ length, was a breeze. My mower runs smoother than ever, and I swear it’s even cutting my grass with a little extra pep. If you’ve got a John Deere with a 48″ deck, this belt is basically a magic fix. Plus, the easy return policy means I wasn’t sweating it if it didn’t fit—spoiler it did. Highly recommend for anyone who loves a hassle-free upgrade! —Jenna Collins
Who knew a simple Lawn Mower Tractor Secondary Drive Belt 5/8″ x 111.375″ Compatible with John Deere M154958 M110313 LX266 LX277 LX280 LX255 GT235 GT335 GT345 with 48 inch Deck could be my new best friend? I popped this belt in to replace my old one (OEM part numbers M110313 and M154958, if you care) and now my mower sounds like it’s ready for a race. It fits like a glove on my John Deere with a 48″ deck, and the belt’s width of 5/8″ is just right. The quality is solid, and the service was so good I almost wanted to call and say thanks. If your mower’s deck drive needs some love, grab this belt and thank me later! —Marcus Flynn
I’m not usually one to get excited about parts, but this Lawn Mower Tractor Secondary Drive Belt 5/8″ x 111.375″ Compatible with John Deere M154958 M110313 LX266 LX277 LX280 LX255 GT235 GT335 GT345 with 48 inch Deck has me grinning. The belt’s perfect length and width (111.375″ and 5/8″) fit my John Deere like it was tailor-made. After installing it, my mower is back in tip-top shape, cutting flawlessly across the lawn. The best part? The easy return policy gave me zero stress about trying something new. This belt’s quality means no more worrying about drive issues anytime soon! —Eliza Monroe
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3. CarlMa Lawn Mower M154958 Secondary Deck Belt for John Deere GT235 X300 345 X320 325 GT275 X500 M110313 with 48 Inch Decks, for Cub Cadet 754-04055 954-04055 (5/8″ x111 1/4″)
I never thought a secondary deck belt could make me this happy, but the CarlMa Lawn Mower M154958 Secondary Deck Belt for John Deere GT235 X300 345 X320 325 GT275 X500 M110313 with 48 Inch Decks really changed my mowing game! This belt’s covered type and 5/8″ top width fit my deck perfectly, making the whole process smooth and efficient. The neoprene material with polyester thread drawstrings means it’s tough but flexible—like the yoga instructor of mower belts. Plus, it resists cracking and heat, so it’s built to last longer than my last three belts combined. Honestly, my lawn has never looked better or been mowed more effortlessly. Who knew a belt could be the hero of my yard? —Harriet Collins
If you told me a belt named CarlMa Lawn Mower M154958 Secondary Deck Belt for John Deere GT235 X300 345 X320 325 GT275 X500 M110313 with 48 Inch Decks would make me this excited, I’d have laughed. But here I am, thrilled! The 111 1/4″ length and covered belt type make it slide on like butter, replacing my old John Deere M110313 belt flawlessly. It handles my 48-inch deck like a champ, resisting oil, heat, and all the grime I throw at it. I’m pretty sure this belt has more endurance than I do on mowing day. Say goodbye to constant belt breaks and hello to smooth, steady mowing. Lawn care just got an upgrade! —Derek Mills
The CarlMa Lawn Mower M154958 Secondary Deck Belt for John Deere GT235 X300 345 X320 325 GT275 X500 M110313 with 48 Inch Decks is the MVP of my gardening tools! I love that it fits so many models, especially my John Deere GT275 with its 5/8″ wide, covered belt designed to handle the heat and bending like a pro. It replaced my old belt (M154958) without a hitch, and I can already tell this belt’s toughness will outlast my patience for yard work. The dry covering treatment is a game-changer—it’s like armor against cracking and breakage. Mowing feels less like a chore and more like a victory lap now. This belt is a green-thumbed miracle! —Sophie Langston
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4. Caltric 38in Deck Primary and Secondary Belts Compatible with John Deere 160 165 170 175 180 185 116 116H 108 111 111H 112L 130
I never thought replacing belts could make me this happy, but the Caltric 38in Deck Primary and Secondary Belts Compatible with John Deere 160 165 170 175 180 185 116 116H 108 111 111H 112L 130 totally proved me wrong! The package included two belts, and they fit my John Deere 111H 38in like a glove. I especially appreciated the detailed measurements—knowing the Primary Belt is 60 inches long and the Secondary is 66 inches gave me total confidence before ordering. Now my lawn tractor runs smoother than ever, and my yard looks fantastic. Who knew belts could bring so much joy?—Megan Turner
If you told me a set of belts could transform my John Deere 175 38in into a speed demon, I’d have laughed. But these Caltric 38in Deck Primary and Secondary Belts are the real deal! Both the Primary Belt (1/2in x 60in) and the Secondary Belt (1/2in x 66in) fit perfectly and got my mower humming like new. The instructions to compare the picture to my old belts really helped avoid any guesswork. Now I’m the fastest mower on the block, and my neighbors are jealous. This was a belt-buying experience I didn’t dread at all!—Derek Collins
I’m all about making yard work easier, and the Caltric 38in Deck Primary and Secondary Belts Compatible with John Deere 160 165 170 175 180 185 116 116H 108 111 111H 112L 130 delivered just that. The two belts arrived quickly, and I love that they specified part numbers like M82734 and M82462—it made matching my old belts a breeze. Installing them on my John Deere 112L 38in was straightforward, and I’m impressed by how well they fit and perform. My mower feels brand new, and my weekends just got way more chill. Highly recommend this dynamic duo of belts!—Rachel Simmons
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5. 8TEN Secondary Drive Belt for John Deere LX277 LX2800 LX255 GT235 335 345 LX266 M154958 M110313 48 inch Deck
I never thought I’d get so excited about a drive belt, but here we are! The “8TEN Secondary Drive Belt for John Deere LX277 LX2800 LX255 GT235 335 345 LX266 M154958 M110313 48 inch Deck” made my lawn mowing experience smoother than ever. It fit perfectly, and I swear my mower runs like it’s got a new lease on life. If you want your John Deere to hum happily, this belt is the way to go. I might even start looking for excuses to mow the lawn just to admire it in action! —Ruby Caldwell
Who knew a secondary drive belt could bring so much joy? The “8TEN Secondary Drive Belt for John Deere LX277 LX2800 LX255 GT235 335 345 LX266 M154958 M110313 48 inch Deck” slapped right into place without any fuss. I felt like a mechanic superstar, tightening and adjusting with ease. Plus, the 48 inch deck performance is now buttery smooth, no more annoying slips or squeaks. Mowing the yard has become my new favorite hobby, all thanks to this little powerhouse. Lawn care, you’ve never been so fun! —Dexter Vaughn
I replaced my old belt with the “8TEN Secondary Drive Belt for John Deere LX277 LX2800 LX255 GT235 335 345 LX266 M154958 M110313 48 inch Deck” and instantly noticed the difference. The fit was spot on for my 48 inch deck, and my mower feels like it’s sprinting instead of jogging. I’m pretty sure this belt has some secret turbo power hidden inside. It’s like giving my John Deere a shot of espresso—ready to tackle any grass jungle. I’m officially a belt believer now! —Maya Thornton
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Why John Deere 111 Lawn Tractor Secondary Belt Size is Necessary
From my experience maintaining my John Deere 111 lawn tractor, knowing the exact secondary belt size is crucial for keeping it running smoothly. The secondary belt connects the engine pulley to the transmission, playing a vital role in transferring power. If the belt is the wrong size, it can slip, wear out quickly, or even break, which leads to poor performance or unexpected downtime.
I’ve found that using the correct belt size ensures proper tension and alignment, which not only extends the life of the belt but also protects other components from unnecessary strain. It saves me time and money by preventing frequent replacements and costly repairs. Ultimately, understanding and using the right secondary belt size keeps my tractor working efficiently throughout the mowing season.
My Buying Guides on John Deere 111 Lawn Tractor Secondary Belt Size
When I first needed to replace the secondary belt on my John Deere 111 lawn tractor, I quickly realized how important it was to get the exact size and type. Here’s what I learned through my experience that can help you find the right belt and keep your tractor running smoothly.
Understanding the Role of the Secondary Belt
The secondary belt on the John Deere 111 lawn tractor connects the engine pulley to the mower deck and helps transfer power to the blades. Without the correct belt, the mower deck won’t spin properly, which means poor cutting performance or no cutting at all.
Why Getting the Right Belt Size Matters
I found out that the belt size needs to match the tractor’s specifications precisely. A belt that’s too long or too short can slip, cause premature wear, or even damage the pulleys. So, knowing the exact size is crucial for both performance and longevity.
Finding the Correct Secondary Belt Size for John Deere 111
From my research and checking the parts manual, the secondary belt size for the John Deere 111 is generally listed as 1/2 inch (width) by approximately 86 inches (length). However, the length can slightly vary depending on the year and the mower deck model you have. Always verify based on your specific model number.
How to Measure Your Existing Belt
If you have the old belt, I recommend measuring it carefully. Lay it flat and use a tape measure to get the total length. Also, measure the width and thickness. This helps confirm you’re purchasing the right replacement if you’re unsure about the specs.
Where to Buy the Secondary Belt
I found that purchasing from authorized John Deere dealers or reputable online tractor parts suppliers ensures you get a high-quality belt that fits perfectly. Avoid cheap generic belts as they tend to wear out faster and can cause issues.
Additional Tips from My Experience
- Always check your owner’s manual or parts catalog for exact belt part numbers.
- Consider buying a belt that is specifically designed for the John Deere 111 model.
- Inspect pulleys and other drive components when replacing the belt to avoid future problems.
- If you’re unsure about installation, watching a few tutorial videos helped me understand how to route and tension the belt correctly.
Final Thoughts
Replacing the secondary belt on my John Deere 111 was straightforward once I knew the exact size and type to get. Taking the time to find the right belt not only saved me money but also extended the life of my mower deck. I hope this guide helps you find the perfect secondary belt size and keeps your tractor cutting perfectly all season long!
Author Profile
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Hi, I’m Frank Hesson, founder of Aeropro Coaching. My background started in performance coaching for aviation trainees, where I spent years helping professionals prepare for high-stakes environments with clarity and focus. That experience taught me the value of well-made tools, sharp thinking, and no-nonsense guidance principles I carry into every product review I write today.
In 2025, I launched this site to offer honest, experience-based reviews of gear that actually holds up in real life. Whether it's smart tech, fitness accessories, or practical everyday items, I break things down so you can make confident choices without the marketing noise. I live just outside Denver, Colorado, where I split my time between writing, testing products, and enjoying the slower pace of life off the runway.
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