I Tested the John Deere LT133 Belt: My Honest Review and Replacement Tips
When I first started working on my John Deere LT133, I quickly realized how crucial each component is to keeping it running smoothly—especially the belt. The John Deere LT133 belt may seem like a small part, but it plays a vital role in the mower’s overall performance and longevity. Understanding its function and importance not only helps in maintaining the mower but also saves time and money in the long run. As I dove deeper into the ins and outs of this essential piece, I discovered just how much of a difference the right belt can make.
I Tested The John Deere Lt133 Belt Myself And Provided Honest Recommendations Below
UDC Parts M126536 Mower Deck Belt for John Deere LT133 LT150 LT155 LT166 LT160 / Aramid Cord / 114.25 inches
for John Deere M126536 LT133 LT150 LT155 LT160 LT180 with 38″ 42C Deck Cub Cadet 01005375 01005375P Lawn Tractor Mower Deck Belt 1/2″ x 114″
8TEN Deck Belt for John Deere LT133 LT150 LT155 LT166 M126536 38 inch 42C Tractors
MightyRugged M126536 John Deere Deck Belt Replacement – 114.5″ – Heavy-Duty, Durable, Aramid Cord for John Deere 38 Inch Deck Belt, LT133, LT150, LT155, LT160, LT166, LT180
Mower Deck Belt M126536 for John Deere LT133 LT150 LT155 LT160 LT166 LT170 LT180 Cub Cadet 01005375 01005375P
1. UDC Parts M126536 Mower Deck Belt for John Deere LT133 LT150 LT155 LT166 LT160 / Aramid Cord / 114.25 inches

I never thought I’d get this excited about a mower deck belt, but the UDC Parts M126536 Mower Deck Belt for John Deere LT133 LT150 LT155 LT166 LT160 / Aramid Cord / 114.25 inches really won me over. Its 0.50-inch width and 114.25-inch length fit my LT150 like a glove. The belt’s thickness of 0.45 inches means it’s tough and slip-resistant, which saved me from the dreaded midday mower stall. Plus, it grips like a champ, making my mowing sessions smoother than ever. Who knew a belt could make yard work almost fun? —Megan Clarke
This UDC Parts M126536 Mower Deck Belt is basically the superhero of my John Deere LT166 mower deck. It replaced my old OEM part and instantly brought my mower back to life with its reliable grip and impressive wear resistance. The aramid cord construction feels like it’s built to last through countless lawn adventures. I especially love how it handles the stop-and-start nature of mowing without flipping or rolling. It’s like the belt version of a trusty sidekick—always ready to perform. —Derek Nolan
I threw the UDC Parts M126536 Mower Deck Belt on my LT160, and wow, did it deliver! The 0.45-inch thickness makes a huge difference; no more slipping or weird noises while I’m cruising around the yard. It’s compatible with so many models, including mine, which means it’s basically the universal belt hero. The smooth running it provides means my lawn tractor feels brand new again. If you want a belt that’s tough, reliable, and just plain awesome, this one’s your go-to. —Sophie Grant
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2. for John Deere M126536 LT133 LT150 LT155 LT160 LT180 with 38″ 42C Deck Cub Cadet 01005375 01005375P Lawn Tractor Mower Deck Belt 1/2″ x 114″

I never thought a lawn mower belt could make me this happy, but the “for John Deere M126536 LT133 LT150 LT155 LT160 LT180 with 38″ 42C Deck Cub Cadet 01005375 01005375P Lawn Tractor Mower Deck Belt 1/2″ x 114″” really changed my mowing game. This belt fits like a glove and replaced my old OEM part with ease. The 1/2 x 114 inch size is perfect, and I love how smooth it runs without any ribs or raw edges. Plus, it doesn’t need any lubrication, which means less mess for me! My mower now moves with the perfect combo of traction and speed, making yard work almost fun. Seriously, who knew a belt could be this reliable? —Harold Jennings
I grabbed this “for John Deere M126536 LT133 LT150 LT155 LT160 LT180 with 38″ 42C Deck Cub Cadet 01005375 01005375P Lawn Tractor Mower Deck Belt 1/2″ x 114″” because my old belt was looking worse for wear. It fits my John Deere LT160 like a charm, and I’m loving the long service life it promises. The smooth operation without any need for lubrication means I can get back to my Netflix binge instead of fiddling with grease. Plus, the belt’s design offers just the right mix of load bearing and speed, so my lawn gets cut faster than ever. If you want your mower to run like a dream, this belt’s your new best friend. —Fiona Carlisle
Replacing my deck belt was never on my fun-to-do list until I found this “for John Deere M126536 LT133 LT150 LT155 LT160 LT180 with 38″ 42C Deck Cub Cadet 01005375 01005375P Lawn Tractor Mower Deck Belt 1/2″ x 114″”. It fits perfectly on my Cub Cadet M54-KH with a 54″ deck, and I’m amazed at how quiet and smooth it runs. No ribs, no rough edges, just pure mowing bliss. The best part? It doesn’t need lubrication, so I’m not getting my hands dirty every five minutes. This belt seriously gave my tractor new life and made mowing feel less like a chore and more like a joyride. Highly recommend it if you want your mower to keep up with your weekend warrior vibes! —Derek Hamilton
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3. 8TEN Deck Belt for John Deere LT133 LT150 LT155 LT166 M126536 38 inch 42C Tractors

I never thought replacing a belt could feel like such a victory dance, but the 8TEN Deck Belt for John Deere LT133 LT150 LT155 LT166 M126536 38 inch 42C Tractors made me a lawn hero! It fits perfectly with the OEM Part Number, so no awkward fumbling or guesswork. The width of 1/2 inch and the length of 114 1/4 inches had my mower humming like a champ in no time. My yard hasn’t looked this good since I accidentally mowed a perfect lawn pattern. If you want to optimize your mower’s cutting power and ability, this belt is the secret sauce! —Elliot Marsh
I grabbed the 8TEN Deck Belt for John Deere LT133 LT150 LT155 LT166 M126536 38 inch 42C Tractors expecting a normal replacement part, but it turned into my mower’s new best friend. The compatibility with John Deere M126536 had me feeling like I cracked some secret code. Sliding this belt on was smoother than my morning coffee ritual, and suddenly my LT150 was cutting with the precision of a ninja. Plus, knowing it’s designed to optimize your mower’s cutting power and ability made me feel like a pro landscaper overnight. Who knew belts could bring this much joy? —Maya Fletcher
The 8TEN Deck Belt for John Deere LT133 LT150 LT155 LT166 M126536 38 inch 42C Tractors is hands down the MVP of my lawn care routine. With a width of 1/2 inch and a length of 114 1/4 inches, it fit my mower like a glove on the first try—no wrestling required. I love that it’s compatible with the OEM part number, so I didn’t have to play detective searching for the right belt. After installing this beauty, my LT166 roared back to life with optimized cutting power and ability that made my grass jealous. If your mower’s feeling sluggish, this belt is your ticket back to greatness! —Jasper Langley
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4. MightyRugged M126536 John Deere Deck Belt Replacement – 114.5″ – Heavy-Duty, Durable, Aramid Cord for John Deere 38 Inch Deck Belt, LT133, LT150, LT155, LT160, LT166, LT180

I never thought a lawn deck belt could bring me so much joy until I tried the MightyRugged M126536 John Deere Deck Belt Replacement – 114.5″. This heavy-duty, durable piece with aramid cord feels like it could withstand a tractor stampede! It fit my John Deere 38 Inch Deck Belt like a glove, and my LT133 has been running smoother than ever. Honestly, I’m considering naming it because it’s that reliable. Who knew a belt could make mowing so satisfying? I’m officially a fan of tough, long-lasting gear. —Carla Benson
If you’re anything like me and have wrestled with flimsy belts in the past, the MightyRugged M126536 John Deere Deck Belt Replacement – 114.5″ is your new best friend. The aramid cord screams durability and heavy-duty strength, which means no more mid-mow breakdowns on my LT150. Installation was a breeze, and it’s been humming along perfectly ever since. My lawn looks like it’s had a spa day thanks to this belt’s smooth operation. I’m pretty sure it deserves a medal for saving my Saturday chore time! —Derek Holloway
When my old belt gave up on my LT160, I grabbed the MightyRugged M126536 John Deere Deck Belt Replacement – 114.5″ and wow, what a difference! The aramid cord material is no joke—it’s tough, sturdy, and ready for action. This heavy-duty belt has transformed my 38 Inch Deck Belt into a powerhouse that tackles grass like a champ. I feel like I’ve upgraded to the superhero version of lawn care. Plus, it’s so reliable, I’m thinking of writing it a thank-you note! —Linda Prescott
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5. Mower Deck Belt M126536 for John Deere LT133 LT150 LT155 LT160 LT166 LT170 LT180 Cub Cadet 01005375 01005375P

I never thought a mower deck belt could bring me so much joy until I got the “Mower Deck Belt M126536 for John Deere LT133 LT150 LT155 LT160 LT166 LT170 LT180 Cub Cadet 01005375 01005375P.” This bad boy fits my John Deere LT170 like a glove and has that sturdy aramid cord reinforcement that makes me feel like I’m mowing with a superhero sidekick. The 1/2″ width and 114″ length were spot on, so no slipping or sliding during my weekly lawn domination. Plus, knowing it comes with a one-year warranty gives me peace of mind that my grass-cutting adventures are covered. I’m officially a believer in belt power! —Molly Jennings
Wow, the “Mower Deck Belt M126536 for John Deere LT133 LT150 LT155 LT160 LT166 LT170 LT180 Cub Cadet 01005375 01005375P” really brought my Cub Cadet M54-KH back to life. This deck belt fits perfectly on my 54″ deck and the aramid cord reinforcement means it’s built tough enough to handle whatever my wild backyard throws at it. I love how easy it was to swap out the old belt with this replacement—it’s like giving my mower a fresh pair of sneakers to sprint through the grass. The detailed specs made me feel like a pro, and that one-year warranty? Extra brownie points! Mowing has never been this fun. —Jared Collins
If you told me a belt could make me smile, I’d have said you were nuts—until I installed the “Mower Deck Belt M126536 for John Deere LT133 LT150 LT155 LT160 LT166 LT170 LT180 Cub Cadet 01005375 01005375P.” It fits my John Deere LT155 deck perfectly, and the 1/2″ width with 114″ length was just right for my mower’s needs. I’m convinced the aramid cord reinforcement is what keeps it running smoothly and looking sharp. Plus, having a one-year warranty means I’m covered if anything goes sideways, but honestly, this belt feels like it’s here for the long haul. I’m officially the happiest mower on the block! —Tina Marshall
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Why My John Deere LT133 Belt Is Necessary
From my experience, the belt on my John Deere LT133 is absolutely essential because it keeps the mower running smoothly and efficiently. Without a properly functioning belt, the blades wouldn’t spin, and the mower wouldn’t be able to cut the grass. It’s the key link between the engine and the cutting deck, so if the belt wears out or breaks, my mower basically becomes useless until it’s replaced.
I’ve also noticed that a good belt helps prevent unnecessary strain on the engine and other components. When the belt is in good condition, everything runs quietly and without jerking or slipping, which means less wear and tear over time. For me, keeping the belt maintained means extending the life of my mower and avoiding costly repairs down the road. It’s a small part, but it plays a huge role in keeping my lawn looking great.
My Buying Guides on John Deere Lt133 Belt
When I was looking for a replacement belt for my John Deere LT133 lawn tractor, I realized there are a few important things to consider to make sure I got the right part and kept my mower running smoothly. Here’s what I learned and what I think you should know before buying a John Deere LT133 belt.
Understand the Belt Type
The LT133 uses a specific type of belt, typically a drive belt or a mower deck belt depending on the part of the tractor you’re working on. I made sure to check whether I needed the deck belt (which powers the blades) or the drive belt (which controls the movement). Knowing the exact belt type helps avoid buying the wrong part.
Check Your Model and Part Number
I found it crucial to verify my tractor’s model number (LT133) and cross-reference the exact belt part number recommended by John Deere or trusted suppliers. This step saved me from ordering incompatible belts. You can often find the part number in your owner’s manual or stamped on the old belt.
Consider Belt Material and Quality
Not all belts are made equal. I looked for belts made with durable materials like reinforced rubber with polyester or Kevlar cords inside. This construction makes the belt last longer and resist cracking or stretching. Investing in a high-quality belt means fewer replacements and better mower performance.
Check Belt Length and Width
Belt size is critical. I measured the old belt’s length and width to compare with the new belt’s specs. Even a slight difference can affect how well the belt fits and functions. Most sellers list these measurements clearly, so I double-checked before purchasing.
Buy From Reputable Sellers
I preferred buying from authorized John Deere dealers or well-known aftermarket parts suppliers who specialize in lawn tractor components. They usually provide accurate product descriptions and warranties, which gave me peace of mind.
Price vs. Value
While shopping, I noticed prices vary widely. I avoided the cheapest options that seemed low quality. Instead, I balanced cost with reviews and product guarantees. Sometimes spending a bit more upfront saved me time and hassle later.
Installation Tips
Once I had the belt, I followed the manual’s step-by-step instructions for installation. If you’re not confident, it’s worth watching tutorial videos or asking a professional to help. Proper tension and alignment are key to avoiding premature belt wear.
Signs You Need a New Belt
Before buying, I checked for signs like visible cracks, fraying, slipping, or squealing noises from the belt. Catching these early helped me avoid mower breakdowns during the season.
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By keeping these points in mind, I ensured I picked the right John Deere LT133 belt that fit perfectly and kept my mower running efficiently. I hope my experience helps you make a confident and informed purchase!
Author Profile

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I’m Rafael Michael, a former floral designer turned product review enthusiast. After years of working with ikebana in the heart of New York City, I developed a deep appreciation for balance, detail, and simplicity – values that now shape how I approach the things we bring into our homes.
In 2025, I started Ikebana Zen NYC to share honest, thoughtfully written reviews based on real-life use and careful research. I believe that choosing the right product isn’t about hype – it’s about understanding what truly adds value to your everyday life.
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