What Are the Best Tractor PTO Adaptors? All You Need to Know (2023 Guide)

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Many tractor experts have an instant headache whenever they hear tractor PTO.

Although PTO shafts are extremely valuable for outstanding results, difficult jobs, and various operations, their installation might be a time-consuming process, especially if you install the attachments for the first time.

That’s why you can find the best tractor PTO adaptors for your tractors and attach the compatible implement in seconds!

But, how to find the best solution, and what do you need to look for? Well, read below.

Best tractor’s PTO shaft adapters 2023: Choose your fighter!

$All States Ag Parts PTO Adapter – 3.65 pounds.

Best heavy-duty construction for an easy link and attachment with implements. Versatile and flexible for multiple attachments. Good design and extended use.

$$$$Tractor Pto Quick Connect Adapter (ADP-Set) – 13 pounds.

Most stable and secure structure, versatile for different implements and brands. Reliable and quick setup. But, too expensive.

$DOUBLE HH 23556 Extension Pot Adapter – ‎3.64 pounds.

Ideal for numerous brands and different machines. Advanced performance and quality for different farming jobs. Yet, specific fitting issues.

$PTO Spline Adaptor 1-3/8 x 21 fem to 1-3/8 x 6 Male – 4 pounds.

Best performance due to solid and robust construction. For various operations, heavy-duty and light tasks. However, specific design issues.

$New 6 Spline 1 3/8″ QR Standard PTO Push Pin Adaptor – 2.65 pounds.

Best design and fit for multiple farm machines and brands. Good, solid structure for numerous operations. Still package issues.

#1. All States Ag Parts PTO Adapter – Best heavy-duty construction

  • Brand: All Stages Ag Parts
  • Item dimensions: 8 x 3 x 3 inches
  • Tractor power: up to 75 HP
  • Best for: a bush hog

What’s so unique about this PTO shaft adaptor?

Firstly, due to its wholesome design and material, the heavy-duty construction will resist all external forces, impacts, and pressure.

Thus, the PTO shaft adapter will last for an extended period, and you can use it for various attachments.

In addition, the durable and solid construction will be corrosion-resistant; therefore, it cannot damage so soon, and it’ll show an advanced performance in working conditions.

Of course, the installation will be an easy task for you since the PTO shaft adapter replaces the three-point hitch and its specific agricultural hardware.

However, the PTO shaft adapter is a perfect PTO link for various PA09 and PA-09 parts and attachments due to its OEM specifications.

So, you can use it for a compatible brush hog, mower, or any other corresponding tractor equipment matching the PTO link.

The PTO shaft adapter will also extend the PTO link to 4.5 inches, even though the adapter has an overall length of 7 inches. Hence, it will be flexible and versatile for effortless connection.

Finally, the PTO link adapter has a 1-year warranty if there’s a specific problem with the adapter.

  • durable
  • easy setup
  • stable
  • solid
  • not visible

#2. Tractor Pto Quick Connect Adapter (ADP-Set) – Most stable and secure

  • Brand: Generic
  • Item dimensions: 10 × 5 × 5 inches
  • Tractor power: up to 120 HP
  • Best for: versatility and flexibility

The Generic PTO shaft adapter will wow you due to its versatility and robust design. In addition, the PTO link has the greatest strength and supports various tractors.

Thanks to its strength, the PTO link is an excellent adapter for a rotary tiller, cutter brush hog, mower, hole digger, loader, and other different three-point attachments and tractor equipment.

So, it’s convenient for a standard 540 PTO shaft.

Although the tractor and implement connection might be a time-consuming process, the Generic PTO link will make it quick and effortless, thanks to the well-made yoke, shear pin, and other parts the compatible PTO shaft must contain.

So, you can easily extend the PTO shaft with the Generic adapter for 4.5 inches above its given size.

Hence, the PTO link adapter is flexible, adjustable, and versatile for multiple working conditions.

Moreover, the PTO link adapter is also good and a piece of safer equipment owing to its durable and sturdy design.

Hence, the PTO link adapter serves more robust applications.

And, you don’t need to worry about potential risks and problems – once you install the adapter to your tractor’s PTO shaft, the connected implement will be stable and secure.

  • durable
  • solid
  • reliable
  • easy to install
  • expensive

#3. DOUBLE HH 23556 Extension Pot Adapter – Best quality

  • Brand: Double HH 
  • Item dimensions: 2.6 x 7 x 2.6 inches
  • Tractor power: up to 70 HP
  • Best for: a tiller

Concerning the Double HH PTO link, the extension PTO adapter is specifically created to reduce or increase the diameter or extended length of the PTO shaft, enabling it to fit the compatible implement or PTO shaft.

So, it measures all 1.375 inches of yoke ends and provides a good, solid, and reliable construction for a stable and secure connection.

So, you can adjust it to multiple working conditions – the product won’t cause any problem while performing.

On the contrary, the PTO adapter has a yellow zinc plating and is designed with durable and sturdy content.

Thus, the adapter is corrosion-resistant, and once you install it correctly, the product is ready for operations.

Thanks to its fitting and overall design, the tractor PTO adapter is suitable for a range of machines and tractors.

So, you can use it with all three-point hitch implements, such as hole diggers, mowers, tillers, cutters, and other products requiring engine power.

Also, the tractor PTO adapter is compatible with various tractor brands, such as John Deere, New Holland, and other tractors, offering a quick setup process.

Yet, it would be best to check the OEM specifications to find suitable products.

  • durable
  • sturdy
  • stable
  • specific fitting issue

#4. PTO Spline Adaptor 1-3/8 x 21 fem to 1-3/8 x 6 Male – The best performance

  • Brand: AgKnx
  • Item dimensions: 5 x 5 x 5 inches
  • Tractor power: up to 70 HP
  • Best for: durability and sturdiness

Regarding the AgKnx tractor PTO adapter, this is a male, so it needs a corresponding female end. And that end must be 1-3/8×21 or 8.95 inches.

Hence, the tractor PTO adapter offers a quick setup process on one end of the PTO shaft and attaches easily to the other end of the suitable implement.

So, the installation will be an easy task for all farmers, and the tractor PTO connector meets various three-point machines.

So, you can use the adapter with the loader, tiller, hole digger, cutter, and other implements requiring the tractor’s engine power.

In addition, the PTO connector will quickly extend the shaft by 3.875 inches over its original size.

Besides, the product has a quick release, ensuring effortless detachment and attachment of the specific tractor attachments.

However, it would be best if you examined the OEM specs of your tractors and implements to find whether the product fits various John Deere, Kubota, Ford, and other tractor brands.

The PTO connector has a zinc coating thanks to its anti-corrosive design and overall content.

Therefore, it will be resistant to various changing conditions, external impacts, and forces, providing more robust applications without problems.

  • easy to connect
  • durable
  • solid
  • stable
  • negligible design issues

#5. New 6 Spline 1 3/8″ QR Standard PTO Push Pin Adaptor – Best design

  • Brand: Reliable Aftermarket Parts Our Name Says It All
  • Item dimensions: 5 x 5 x 5 inches
  • Tractor power: up to 70 HP 
  • Best for: easy setup

When talking about the best adapters, this one undoubtedly stands out. The push-pin PTO connector provides:

  • An easy setup.
  • Putting all essential parts in proper places.
  • Enhancing the stability and security of the PTO shafts.

Moreover, the push-pin PTO connector contains anti-corrosive zinc plating due to its robust and solid construction.

Hence, it will endure all impacts, changing elements, pressure, and external forces. So, it provides superior performance.

Since it contains a specific OEM number, you must examine your equipment to find if it fits John Deere, Kubota, and other PTO machines.

OF course, you can extend the PTO shaft’s length and adjust the PTO adapter to meet your requirements and provide a good linkage point.

Naturally, the PTO adapter will cover a range of three-point implements and machines. Thus, the installation takes less time, and you can finish everything quickly.

Finally, the manufacturer provides multiple suppliers so that you will get your PTO adapter delivered in no time.

Still, once you order the adapter on the stock, check all delivery points and essential factors, and examine how much time it takes to arrive.

Many complain about a specific delivery and package issue.

  • solid
  • strong
  • stable
  • easy to install
  • package issues

Choosing the best tractor PTO adapters: Buyer’s guide

Even though selecting PTO adapters seems like an easy task, it might be difficult unless you follow all the steps and connect all the items properly.

So, while talking about the best PTO connectors, pay attention to the factors below.

What is a PTO adaptor?

tractor pto shaft adaptor

A PTO adapter is an item used to connect multiple attachments to your tractor, thanks to the convenient shaft, and the tractor’s engine power will transfer to the implement.

The most prominent attachments that hook with the PTO adapters are:

  • rotary tillers
  • finish mowers
  • brush hogs
  • woodchoppers

Still, if you try putting other implements, ensure the hook supports them correctly and check the specifications for proper correspondence.

Otherwise, the restorative procedure will be a true pain in the neck with hook issues and other following problematic patterns.

How do you properly install and use the PTO connectors?

Though the traditional PTO is valuable and helpful for your machines, there might be a couple of specific problems limiting efficiency and effectiveness.

They might be extremely difficult to connect, cause pain to the hands, and require much work. And, the shaft design makes the biggest issue with connectors.

Still, you can follow the procedure for an easy connection:

  • take the PTO adapter and push the button on the PTO and rotate it until you find the right point that slips in
  • lock the PTO adapter into place
  • ensure the PRO is in the neutral position to rotate freely
  • take the spikes and slide them into the holes
  • slide the spikes correctly inside. The process might be too challenging and complicated until they’re perfectly positioned inside.
  • put the pins in
  • put the boats
  • use the safety chain and pin back on the shaft

To detach it from the tractor, you just need to:

  • pull the pins out. Beware – it’s challenging and might cause pain to your hands.
  • grab the collar and pull it back
  • you’ve detached the adapter from the machine

But, you can also refer to the video below to sort issues and have a good insight into the procedure.

To use the PTO adapters correctly, you can follow the procedure below:

  • twist and push the coupler to line up the splines with the output PTO shaft’s splines
  • remove the horizontal splines from the coupler and place them on the adapter’s face
  • press the spring-loaded locking pin
  • slide the tractor and implement connectors
  • rotate the inner plate in the left or right direction to match the splines together

The process will reduce back injuries and increase productivity.

Crucial factors when choosing the adaptors

1. Design

A standard PTO has three items:

pto adapters for tractors
  • shaft
  • coupler – attached to the shaft
  • spring-loaded locking device – part of the coupler

All of the units should be of the right size and shape to be able to fit adaptors correctly and create a secure and stable connection.

So, check all specifications and search for the units when adjusting the adaptors to the system. If something is lacking, you cannot complete the process.

2. Material

It’s mandatory to have durable and sturdy adaptors, as they withstand and endure external forces, pressure, and impacts and provide a stable connection for your PTO items.

So, you need to look for heavy-duty construction capable of various impacts and keeping the linkage secure and safe for full use.

3. Size

Of course, the proper size is also obligatory for different shafts and adaptors.

Thus, it would be best if you remembered the tolerable dimensional deviation leaves no room for dirt and debris.

Everything must be of the correct size for a successful connection.

4. Versatility

Of course, look for a versatile three-point connection, able to attach various implements and brands, not only one.

But, examine the OEM numbers for correct use to avoid further implications.

Frequently Asked Questions

What is a PTO increaser?

It’s a PTO tool used to extend, increase, or reduce the length and overall size of the tractor’s PTO shaft to meet and match the PTO of the implement.

It is also known as the PTO adaptor.

What is a PTO connector?

tractor pto quick connect adapter

A power take-off, or the PTO, is known as a system that uses the strength and forces of the tractor’s engine and transmits it to the implement attached to the machine, through the PTO shaft, without external potential, source, or other manual additional tools.

However, a PTO connector is an adaptor that has the primary purpose of keeping the shaft at one end of the tractor and the other end of the attachment stable and secure for performance and transmission.

It can also increase, reduce or extend the shaft’s size to find the best match and secure the stability of the connected units, keeping them together while operating.

How many splines is an ample 1000 PTO?

A 1000 rpm shaft can have either twenty or twenty-one splines or teeth.

The faster the PTO speed, the more splines work optimally to make the PTO link between the tractor and the attachment more stable and secure for various operations.

So, the best PTO adapters are…?

The best PTO adaptor is undoubtedly the fantastic All States Ag Parts PTO Adapter.

You will love it, as the adapter has a heavy-duty structure and overall design suitable for light or heavy-duty farm work and advanced performance.

In addition, it uses strength up to 75 HP, so it will ensure you finish your job quickly.

Finally, due to its overall and extended size but replacement number and units, you can use the adaptor for various implements with a three-point connection.

And the adaptor will increase the shaft’s size by 4.5 inches for more convenience.

Final words

So, do you have a lot of work to finish in a day?

If you do, the solution is right here – use the best tractor PTO adaptors to connect the fitting units together and make your tractor’s performance outstanding and advanced.

If you still need time to find the best adaptor, take your time and go slowly.

But, whatever choice you make, you cannot go wrong, as the units included in our reviews are the leading ones on the market, so they won’t let you down.

And, if you have additional questions, feel free to write, as we’re glad to help you!

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Ben Bareja

Ben Bareja, the owner-founder-webmaster of CropsReview.com. This website was conceptualized primarily to serve as an e-library for reference purposes on the principles and practices in crop science, including basic botany. Read more here

1 thought on “What Are the Best Tractor PTO Adaptors? All You Need to Know (2023 Guide)”

  1. I have a JD 3520 with a 540 rpm pto, I know I need a 6 spline, what does the 1-3/8” designate? Can you also just tell me which pto extender I need. Only need to extend between 4 to 4-1/2”. Thanks


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