Best Diesel Lawn Mower Clutches of 2026

Name: Koomaha AM138486 Secondary Transaxle Clutch for John Deere Gator
Brand: Koomaha

Bryan Hicks

Last Updated: Jan 10, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Diesel lawn mower clutches are essential components of any lawn mower that runs on diesel fuel. These clutches are responsible for connecting and disconnecting the engine from the transmission, allowing the operator to control the speed and movement of the mower. They are designed to withstand the high torque and power output of diesel engines, ensuring that the mower runs smoothly and efficiently. Diesel lawn mower clutches come in a variety of sizes and styles to fit different types of mowers, and they are built to last for years of reliable use. Whether you're a professional landscaper or a homeowner with a large yard, a diesel lawn mower clutch is an important investment that will help keep your mower running smoothly for years to come.

At a Glance: Our Top Picks

#TOP 1

Koomaha AM138486 Secondary Transaxle Clutch for John Deere Gator

9.9

Buy on Amazon Read Review

#TOP 2

The ROP Shop Secondary Driven Clutch for John Deere 6x4 Gator

9.8

Buy on Amazon Read Review

#TOP 3

JEENDA AM140985 Drive Clutch for John Deere Gators

9.6

Buy on Amazon Read Review

Top 5 Diesel Lawn Mower Clutches

#TOP 1

Koomaha AM138486 Secondary Transaxle Clutch for John Deere Gator

Koomaha
Koomaha AM138486 AM116177
Secondary

AM138486 Secondary Transaxle Driven Clutch Replacement for John Deere Gator HPX 4x2 4x4 4x6 HPX615E HPX815E Diesel Replace# AM136817 Koomaha

The Koomaha John Deere Clutch is designed to replace the secondary transaxle driven clutch in various John Deere Gator models, including both gas and diesel versions. This clutch fits a wide range of utility vehicles such as the 6x4, 4x2 HPX, and 4x4 HPX models, providing versatility for different needs. It covers many original equipment part numbers, ensuring compatibility and making it easier for you to find the right fit. Plus, it comes with a 12-month warranty, giving you peace of mind and confidence in the product’s durability and performance.

9.9

Buy on Amazon Find on eBay Find on Walmart

What We Like

Wide model compatibility
Fits gas and diesel engines
Multiple OEM part replacements
12-month warranty included

#TOP 2

The ROP Shop Secondary Driven Clutch for John Deere 6x4 Gator

The ROP Shop
101761
Gray

The ROP Shop | Secondary Driven Clutch for John Deere AM138089, AM137289 6x4 Diesel Gator UTV

The ROP Shop Clutch is a replacement secondary driven clutch designed to fit many John Deere 6x4, TH, and XUV Gator Utility Vehicles. This part provides a reliable solution if you need to replace your clutch, helping maintain your vehicle's performance. It comes as a single unit, so installation is straightforward without extra parts needed. Before purchasing, it's important to check your model or part number to ensure compatibility, as this clutch may replace several different part numbers. This makes it easier for you to find the right fit for your Gator UTV and keep it running smoothly.

9.8

Buy on Amazon Find on eBay Find on Walmart

What We Like

Wide vehicle compatibility
Single unit replacement
Multiple part number fit
Easy to verify fit

#TOP 3

JEENDA AM140985 Drive Clutch for John Deere Gators

JEENDA
AM140985, AM141005, M128794
Metal

JEENDA AM140985 Primary Drive Clutch Compatible with John Deere 4X2 Gators, Diesel Gator, Trail Gator, Worksite Gator, 1200A Bunker and Field Vehicle 18 MPH Replaces AM141005, AM128794

JEENDA Clutch for John Deere Gators is a replacement part with model numbers AM140985, AM141005, and AM128794. It fits various John Deere Gator models, providing compatibility and ease of installation. The clutch has dimensions suitable for your lawn mower needs, ensuring proper functionality. With this clutch, you can expect improved performance and smooth operation. Upgrade your John Deere Gator with this reliable JEENDA clutch for optimal results.

9.6

Buy on Amazon Find on eBay Find on Walmart

What We Like

Easy Installation
Enhanced Performance

#TOP 4

LUFT MEISTAR AM140985 & AM140967 Clutch Assembly for John Deere Gators

LUFT MEISTAR
AM140985 AM140967

LUFT MEISTAR AM140985 AM140967 Primary & Secondary Drive Clutch Assembly Compatible with John Deere 4X2 Gators, Diesel Gator, Trail Gator, Worksite Gator, 1200A Bunker and Field Vehicle,AM141005,AMT27

The LUFT MEISTAR Drive Clutch is designed to fit various John Deere Gator models, including 4X2, Diesel, Trail, and Worksite Gators, as well as the 1200A Bunker and Field Vehicles. This clutch assembly includes both primary and secondary clutches with multiple compatible part numbers, making it a versatile replacement option. Made from high-strength materials, the secondary driven clutch offers durability and resistance to wear, ensuring it lasts through tough use. The primary clutch comes with precise dimensions, allowing for easy installation and reliable performance. With this clutch, you get a dependable upgrade that keeps your equipment running smoothly.

9.5

Buy on Amazon Find on eBay Find on Walmart

What We Like

Wide model compatibility
Multiple replacement part options
Durable high-strength material
Precise clutch dimensions

#TOP 5

8TEN Electric PTO Clutch for Exmark & Toro Lawn Mowers

8TEN
810-CPT2364O
Gray

8TEN Electric PTO for Clutch Exmark Toro Warner Xtreme Lazer Z590-D 109-6627 103-0011 X0238 103-0083 5218-161

This Electric PTO Clutch is a high-performance replacement for Exmark and Toro lawn mowers. Compatible with several models, it features a Gen 3 design with a 370 degrees auto thermal cutoff to prevent clutch damage. The clutch also boasts increased blade acceleration with higher initial torque and anti high & low-temperature bearings with encapsulated coils for consistent performance even in extreme temperatures. Shaft diameter is 1-1/8 inch, and the pulley outer diameter is 6.45 inches.

9.5

Buy on Amazon Find on eBay Find on Walmart

What We Like

Compatible with several Exmark and Toro lawn mower models
Features a Gen 3 design with a 370 degrees auto thermal cutoff to prevent clutch damage
Increased blade acceleration with higher initial torque

Frequently Asked Questions (FAQs)

1. How do I know if my clutch is bad on my riding mower?

If the clutch is damaged, you may hear it slipping while it tries to engage, or you might hear your PTO engage and then stop right away, as it is designed for the fuse to fail first if it cannot turn the clutch.

2. Are all PTO clutches the same?

PTO clutches are designed to run in one direction only. Two clutches that look alike may be mounted on the engine differently. When the pulley is closest to the engine, or if the pulley is mounted away from the engine, the internal clutch rotation changes.

3. Should mower clutch spin freely?

Yes, the clutch pulley should turn freely when not engaged. It may have an electrical issue as well as bearing issue causing it to stall with no load and vibrate under a load.

4. How do you check an electric clutch on a lawn mower?

Start the engine and let it warm up. Activate the lever to engage the clutch. From a distance, look underneath the deck and check for mower blade operation. If you hear a squealing noise, shut the engine off and remove the ignition key.

Editor's Notes

During our diesel lawn mower clutch research, we found 24 diesel lawn mower clutch products and shortlisted 5 quality products. We collected and analyzed 3,891 customer reviews through our big data system to write the diesel lawn mower clutches list. We found that most customers choose diesel lawn mower clutches with an average price of $127.08.

The diesel lawn mower clutches are available for purchase. We have researched hundreds of brands and picked the top brands of diesel lawn mower clutches, including Koomaha, The ROP Shop, JEENDA, LUFT MEISTAR, 8TEN. The seller of top 1 product has received honest feedback from 107 consumers with an average rating of 4.9.

Written by

Bryan Hicks

Bryan Hicks is a professional gardener and a writer who lives in North Texas with his family and his dog. Bryan has spent more than half of his life surrounded by garden products. He has extensive experience in garden makeovers and maintenance and lawn care. His areas of expertise include outdoor decoration, gardening and garden design.