5 Things About Wheelhorse 312-8 Battery

Troubleshoot the Wheelhorse 312-8 battery problem

The Wheel Horse 312-8 is a lawn tractor. If you are having issues with your Wheelhorse 312-8 battery, there are a few things you can try to troubleshoot the problem. Here are some steps you can take:

  • Check the battery cables to make sure they are clean and securely connected.
  • Check the battery for any visible damage, such as swelling or leaking.
  • Charge the battery using a battery charger or by jumping the tractor from another vehicle.
  • Check the charging system on the tractor to make sure it is functioning properly.

If these steps do not resolve the issue, it is possible that the battery itself is damaged and may need to be replaced. If you are unsure how to troubleshoot the issue, or do not feel comfortable working on the tractor yourself, it is best to take it to a professional mechanic for repair.

wheelhorse 312-8 Battery

Specs of the Wheel Horse 312-8 battery

The Wheel Horse 312-8 lawn tractor was equipped with a 12-volt lead-acid battery. It is likely that the battery has a cold cranking amp (CCA) rating of around 200~300. lthough this may vary depending on the specific make and model of the battery. It is important to use a battery with the correct CCA rating for your tractor, as using a battery with too low of a rating can cause it to struggle to start the tractor in cold weather, while using a battery with too high of a rating can cause damage to the charging system.

In addition to the CCA rating, it is also important to consider the physical dimensions of the battery when selecting a replacement. The battery should fit properly in the battery tray and have the correct terminal configuration.

How to choose a Wheel Horse 312-8 battery?

Choosing the right battery for your Wheel Horse 312-8 (300-400 Series) lawn tractor is important to ensure that your tractor starts reliably and performs well. Here are some things to consider when selecting a battery:

Cold cranking amps (CCA)

The CCA rating of the battery should be sufficient to start the tractor in cold weather. A battery with a CCA rating of around 200-300 should be sufficient for most Wheel Horse 312-8 models.

Physical dimensions

The battery should fit properly in the battery tray and have the correct terminal configuration. Measure the physical dimensions of the existing battery and make sure the replacement battery is the same size.

Brand and quality

Look for a reputable brand with a good track record of performance and a long warranty period. Higher-quality batteries tend to be more expensive, but they may offer better performance and longer lifespan.


Consider your budget when selecting a battery, but be aware that cheaper batteries may not offer the same level of performance and reliability as more expensive options.

Type of battery

There are several different types of batteries available, including lead-acid, lithium-ion, and nickel-metal hydride. Lead-acid batteries are the most common type and are generally the most affordable option. They require regular maintenance, such as adding water to the cells, and have a shorter lifespan compared to some other types of batteries. Lithium-ion batteries are more expensive, but they have a longer lifespan and do not require maintenance. Nickel-metal hydride batteries are similar to lithium-ion batteries, but they are not as common.

Reserve capacity

The reserve capacity of a battery refers to the amount of time it can run without the engine running before it needs to be recharged. A battery with a high reserve capacity may be more suitable for a tractor that is used infrequently or for applications where the engine may not be running for extended periods of time.


Look for a battery with a good warranty period. A longer warranty period can provide peace of mind and can save you money if the battery fails within the covered time frame.

If you are still unsure which battery to choose, you can consult the owner’s manual for your tractor. Or ask a professional mechanic for assistance. They will be able to recommend a suitable battery based on your specific needs and the requirements of your tractor.

wheelhorse 312-8 Battery
image from walmart

Whare to buy a new battery?

You can try looking for a Wheel Horse 312-8 battery at a local automotive parts store or a store that sells lawn and garden equipment. Or try looking online at websites such as Amazon or eBay. Find a battery at a dealership or repair shop that specializes in repairing Wheel Horse products is also a good choice. It is a good idea to check with multiple sources to find the best price and availability for the battery you need.

How to install a new battery on Wheelhorse 312-8?

To install a new battery on a Wheel Horse 312-8, you will need to follow these steps:

  1. Make sure the tractor is turned off and the ignition key is removed.
  2. Locate the battery compartment, which is usually located under the hood or in the rear of the tractor.
  3. Remove the old battery from the compartment by loosening the hold-down clamp or bolts that secure it in place.
  4. Clean the battery compartment and tray with a mixture of baking soda and water. This will remove any acid or corrosion that may have built up over time.
  5. Place the new battery in the compartment, making sure it is secure and properly aligned.
  6. Tighten the hold-down clamp or bolts to secure the battery in place.
  7. Connect the negative (black) cable to the negative terminal on the battery, and then connect the positive (red) cable to the positive terminal.
  8. Start the tractor and let it run for a few minutes to charge the battery.
  9. Check all the lights and electrical systems to make sure they are functioning properly.
wheelhorse 312-8 Battery
heelhorse 312-8 Battery replacement

That’s it! You should now have a fully functioning battery on your Wheel Horse 312-8 tractor. If you have any problems or questions during the installation process. Simply consult the owner’s manual or a professional mechanic for assistance.

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