7 Common Kubota L3301 Problems & Fixes [Explained]

kubota l3301 problems

The Kubota L3301 is a tractor known to have its share of problems. Many people have complained about everything from the engine to the transmission on this tractor.

If you are thinking of buying one, it is crucial to be aware of these potential issues before making your purchase.

Kubota L3301 problems are part and parcel of owning this tractor. The most common issues we’ve encountered are hydraulic issues, difficulty starting the tractor, and engine problems.

In this article, we will discuss some of the most common Kubota L3301 problems and what you can do to fix them.

7 Kubota L3301 Problems & Fixes

Hydraulic Problems

One of the most common problems with the L3301 is its hydraulic system. Many users have reported issues such as slow response time and leaks.

Some owners have even had to replace their entire hydraulic system, which can be very expensive. To prevent this issue, make sure you properly maintain your tractor’s hydraulics and check for leaks regularly.

Another common hydraulic issue is the loader attachment moving incredibly slowly. The Kubota L3301 has the HST; the PTO control has either an on position or an off. The problem was the loader went too slowly when raising and lowering unless the dump/roll function was activated simultaneously.

The likely fix for this is to move the 3ph lever from all the way up to about midway. Users aren’t meant to be able to have the 3ph lever fully up, but a miss adjusted rod on the 3-point hitch allows it to happen.

When you come across hydraulic problems, remember to also disconnect and reconnect the loader lines – this is often an easy fix.

Trouble Starting the Kubota L3301

Another common issue with the L3301 is trouble starting it. Some owners have reported having to jump-start their tractor multiple times before it will turn on.

This could be due to a faulty battery or an issue with the electric starter. Make sure you keep your battery properly charged, and if necessary, consider replacing it altogether.

Other than the basics, there are a few Kubota L3301-specific checks we can undergo.

Make sure the shift lever is in neutral and the throttle isn’t pushed forward, try and start the tractor now.

If that doesn’t work, double-check connections around the battery to ensure there’s nothing loose; remember, these tractors are heavy on vibrations, so there is the potential for a loose connection.

Is the tractor overheating? If it is, let it cool and try again, if that works, get it in for a service as there will be an underlying cause to overheating.

We mentioned it before, but don’t forget the basics. Always use a quality source of fuel and don’t let fuel sit there for too long, these tractors are top of the range and will function best on quality, fresh fuel.

Clean the air and fuel filters, as with every bit of machinery, these get clogged up with all sorts of debris and rubbish. If there’s a blockage that is restricting airflow, your tractor will suffer.

Engine Difficulties

Some owners have also reported engine difficulties with the Kubota L3301. Some common issues include lack of power and rough running.

There are a couple of specifics to focus on here, it’s also worth noting always to ensure the engine is cool before any work.

Make sure your engine belts are in good condition. For a tractor this size, the fans are critical in keeping the tractor cool and running well. What controls the fans? Yep, the belts. If they don’t look right, you can remove them and replace them until satisfied.

How’s the radiator cap looking? I’ve come across a few dodgy radiator caps in my time, they gradually deteriorate, and the spring-loaded cap can fail, this will almost definitely result in a loss of pressure and potential leaks. Inspect the radiator cap and if something isn’t right, replace it – they’re not too expensive.

Like your air and fuel filters, I’d advise you to put the condenser on your maintenance list. The condenser can get blocked by debris, dirt, and soot. Keep it clean, any blockage will restrict airflow and, therefore, the performance of your Kubota L3301.

The Loader System Playing Up

Lastly, it’s not uncommon for the Kubota L3301 loader system to start playing up. This could be some trouble with the hydraulics or issues with attachment pins and roll pins.

The loader is obviously tied to any hydraulic system issues.

As we touched upon, disconnect and reconnect the loader lines, and remember you can’t get full use from the loader if the 3ph lever is fully up, move it down!

Steering Issues

There have also been a few reported issues with the steering on the L3301, this could be anything from a loose nut to worn out parts.

Inspect all nuts and bolts around the steering column, often they can vibrate loose and cause steering trouble.

However, if you’re experiencing minimal resistance when steering, the likely cause of this is your oil level has dropped to low. Check the oil level top up with warm oil if necessary.

Fingers crossed, it was the oil level because if it isn’t, it could be the steering cylinder or the steering pump. Either of these will likely need to be looked at by a mechanic.

Air in the Fuel Line

It’s worth mentioning air in the fuel line. This can result in loss of power and rough running but is a simple fix.

Locate the bleed screw on your Kubota L3301 and open it until any air has been released from the line, then retighten. Easy as that!

Remember to inspect anything that may be damaged and guilty of allowing air into the fuel line and get replacement parts fitted.

Understanding the DPF

Lastly, it’s worth familiarizing yourself with your Kubota’s DPF (diesel particulate filter) system. Without proper maintenance on the DPF, you’ll end up with clogged filters and power loss.

So what can you do? Stay on top of general maintenance, such as using quality fuel and keeping filters clean.

Also, ensure you’re using your Kubota L3301 properly – don’t let it idle for too long or put strain on the engine without reaching a good operating temperature first. This will all contribute to proper DPF maintenance and performance in the long run.

When it comes to understanding the DPF. When the tractor is ready to regenerate, the dash icon will blink and make a beeping noise. You then have the option of stopping the regeneration, which we don’t advise; if you stop too many regenerations, the black soot build-up will be too large, and you’ll need to take it to a dealership.

The other button allows regeneration; when regenerating, always ensure you’re using the tractor in an open area.

Frequently Asked Questions:

How much can a Kubota L3301 lift?

The Kubota L3301 has a lift capacity of approximately 2551 pounds at the 24-inch pickup point. However, this can vary depending on various factors, such as the weight distribution and attachments being used.

Can you put a backhoe on a Kubota L3301?

Yes, there is an optional factory-installed backhoe for the Kubota L3301. However, it is important to note that this will affect the lift capacity of the tractor.

How much does a Kubota L3301 weigh with loader?

The weight of the Kubota L3301 with a loader attached can vary depending on the specific model and attachments being used. Generally, it will weigh around 4300 pounds.

What size is the Kubota L3301’s engine?

The Kubota L3301 has a three-cylinder, 33-horsepower diesel engine.


Overall, the Kubota L3301 is a reliable and robust tractor. However, as with any equipment, it does have some reported issues that may need attention. It is vital to do thorough research and consider your specific needs before purchasing any piece of equipment. Ultimately, purchasing the L3301 would depend on individual circumstances and preferences. It may be worth considering other options and comparing them to the L3301 before making a decision.

This article is meant to inform readers of some common problems with the Kubota L3301, but should not be taken as a comprehensive guide or endorsement of the tractor. As always, it is important to consult an expert mechanic for any concerns or repairs. Thank you for reading!