Questions, answered

John Deere questions, answered

The questions our customers ask most about owning and running John Deere equipment, with a short answer and a link to the full guide.

Serial numbers and model year

Find the ID tag on your machine and decode what it tells you.

Where is the serial number on your John Deere?

A lawn tractor usually has the ID tag under the front right wheel. Otherwise, the ID tag can be found by the back left wheel. The engine number will be found directly on the engine.
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Understanding your John Deere serial number

Your John Deere serial number is a unique 17-digit alphanumeric code that identifies your specific piece of equipment. This code contains valuable information about your specific machine.
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How to Find the Serial (PIN) Plate on Your John Deere Compact Tractor

Use this simple process to locate the serial plate on your compact tractor: Park the tractor on level ground, set the parking brake, and turn the engine off for safety.
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How to Find the Serial Number Plate on Your John Deere Gator

On current full-size John Deere Gator models such as the 825 and the newer 845 series, the serial number plate is located on the frame near the right rear tire.
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Attachments and compatibility

What fits your tractor or mower, and how to set it up.

What Size John Deere Mower Deck Do I Need for My Yard?

Yards Under 1/2 Acre: 30-42" deck (S100 Series, X300 with 42") 1/2 to 2 Acres: 42-54" deck (X300, Z300 Series Zero-Turns) 2+ Acres or Large Open Spaces: 54-72" deck (Z500 Series or X700 lawn tractors)
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How to Remove the Front Loader from a John Deere 2038R

Needing to lighten your tractor or switch to mowing? Here’s how to detach the 220R front loader: Start the tractor and lower the loader boom until the front wheels just begin to lift. This relieves pressure on the latches.
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Comparing models

Side-by-side looks at the machines people weigh against each other most.

How does the John Deere 1025R compare with the John Deere 2025R?

Here is the honest picture: on paper these two tractors share identical engine power at 23.9 hp gross and identical PTO output at 18.2 hp, so you are not giving up any cutting or driving capability with the 1025R. Where the 2025R does lead is hitch lift capacity, at 915 lb versus 758 lb, and it carries a longer wheelbase.
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How does the John Deere 3025E compare with the John Deere 3038E?

Yes, the 3038E carries more engine power at 36.7 hp versus 23.9 hp, and its PTO output is 30 hp compared to 19 hp on the 3025E. If you are running a heavier finish mower or a large tiller regularly, that gap matters.
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How does the John Deere 2038R compare with the John Deere 3039R?

For most Customers in this class, though, the 2038R is the smarter fit. The hydrostatic transmission is standard across the board, so you get smooth, intuitive operation and cruise control without sorting through transmission packages. The 2038R also comes in lighter at 2,910 lb, which means less compaction on turf and easier trailering.
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Mowing and lawn tractors

Choosing and running a riding mower.

Which John Deere lawn tractors have 4-wheel drive?

The John Deere X700 Signature Series includes three models that feature full-time 4-wheel drive capability, providing superior traction and maneuverability for challenging terrain and demanding applications.
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How should I prepare my lawn mower for spring?

Before the mowing season begins, check oil levels, air filters, and blades for wear. Also, inspect the battery, tires, and belts to ensure everything is in working order.
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How to check if your mower deck is level

Signs of an Unlevel Deck: Scalping, uneven grass height, or visible striping. How to Check: Park on level ground, measure blade height on both sides, and adjust deck hangers or linkages as needed.
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Tire Pressure & Wheel Size for John Deere Lawn Mowers

For most John Deere riding lawn mowers, the recommended tire pressure is typically: Front tires: 12–14 PSI Rear tires: 8–10 PSI Always refer to your specific model's operator manual and check the tire sidewall for exact recommendations.
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Maintenance and service intervals

Keep it running: oil, filters, and blades.

How often should I change the engine oil in my tractor?

Regular engine oil changes are essential to maintaining the performance and longevity of your tractor. Most models require an oil change every 250 hours, but intervals can vary depending on usage and environmental conditions.
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When to replace oil filter on a mower?

Owner’s Manual: Refer to your manual for oil filter replacement intervals. Most recommend replacing it with every oil change, typically every 50 to 100 hours . Heavy Usage: If you use your mower extensively, consider replacing the filter more frequently. Mowing tall grass or operating in dusty conditions can cause it to clog faster.
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How often should I replace hydraulic filters on my equipment?

Hydraulic filters play a key role in keeping fluid systems clean and preventing damage to sensitive components. Most equipment manufacturers, including John Deere, recommend replacing hydraulic filters every 500 hours, but heavy use may require more frequent changes.
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How do I extend the life of my mower blades?

Keeping mower blades sharp improves cut quality and reduces strain on your equipment. Sharpen blades as needed based on usage - typically every 10 to 20 mowing hours for commercial use. Always balance blades after sharpening to avoid vibration that can damage the spindle.
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Troubleshooting

Common no-start and shut-off problems you can check yourself.

Why won’t my lawn mower start?

Check the battery, fuel levels, spark plug, and air filter for issues. Old fuel or a clogged carburetor can also prevent starting - try using fresh fuel and cleaning components. Koenig Equipment can also service your equipment and diagnose the problem for you. To schedule your service visit koenigequipment.com/parts-and-service/service/schedule-service .
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Are there easy fixes for my lawn tractor not starting?

Lawn tractor engines are relatively simple, and many starting problems can be resolved with a few quick checks. First, pull the spark plug, if it’s black, oily, or worn, replace it. Ensure the spark plug wire is securely connected and undamaged.
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My John Deere cranks but won’t fire - what could be wrong?

If your engine cranks but doesn't start, it’s receiving power, but one or more critical systems, fuel, air, or spark, is malfunctioning. Start by confirming there's fuel reaching the combustion chamber. Listen for the fuel pump priming, and check fuel lines and the filter for blockages. On diesel models, make sure the injection pump is delivering fuel.
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Why does my John Deere just click when I try to start it?

A single or repeated clicking sound typically points to a problem in the electrical starting circuit. Start by testing the battery under load,it might show 12 volts at rest but fail under cranking conditions. If the battery drops below 9.6 volts while cranking, it likely needs replacement.
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Mower Starts but Keeps Shutting Off: Easy Troubleshooting

If your mower starts up but repeatedly dies, this is a common problem that can often be fixed with a few simple steps at home. Most issues are related to fuel, air, or spark delivery to the engine. Below are the easiest things to check before bringing your equipment in for repairs.
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Manuals and part numbers

Operator manuals, parts catalogs, and finding the right part.

How to Find and Buy John Deere Equipment Publications

Operator’s Manuals: Cover daily operation, safety, and basic maintenance. Technical/Service Manuals: Provide detailed repair, diagnostics, and troubleshooting information for DIY repairs and professional servicing.
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How to Get John Deere Manuals: Book, CD, or Digital

Customers can get official John Deere operator’s manuals in several convenient formats to best suit their needs: Digital Downloads : Instantly view or download the manual for your equipment directly from the online platform.
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How do I find the correct part number for my John Deere equipment?

Finding the correct Deere part number can be done through several methods: Check your owner's manual for parts diagrams and reference numbers
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Financing

Financing attachments, selling a financed machine, and payments.

Can I finance attachments for my John Deere lawn care equipment?

Yes, when you purchase your compact utility tractor, utility vehicle, lawn tractor, or zero turn mower, select attachments to have installed and bundle everything into one monthly loan payment.
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What happens to my financing if I sell my equipment?

Selling equipment that is still under a financing agreement typically requires you to first pay off the loan in full. The lien held by John Deere Financial must be released before ownership can transfer. Contact John Deere Financial for a payoff quote and instructions.
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Can I change my payment due date?

John Deere Financial or Koenig Equipment may allow customers to change their payment due date depending on their account history and loan terms. Requests can be made by contacting customer service. Approval is not guaranteed and may vary by loan type.
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Still have a question?

Our parts and service teams answer these every day. Stop by a store or reach out and we will help.