Losing the key to your John Deere lawn tractor can bring your yard work to a screeching halt. Fortunately, you don’t need to visit a dealership or pay a premium to get back to mowing. A wide array of reliable and affordable replacement keys are available online, designed to fit various John Deere models and other popular lawn equipment brands.
This roundup simplifies your search by highlighting eight of the best John Deere key replacements for 2025. From multi-packs that ensure you always have a spare to genuine OEM parts and keys for larger agricultural equipment, we have you covered. Find the perfect fit to get your machine running smoothly again without the hassle.
Our Top Picks for John Deere Replacement Keys
- Lawn Mower Ignition Keys GY20680 LVA17264 Compatible with John Deere
- Gy20680 Gx24332 Lgnition Keys Replacement for John Deere D100 D105
- John Deere Original Equipment Key #GY20680
- 6PCS Lawn Mower Ignition Keys GY20680 Replacement for Jo-hn Deere
- 2pcs RE183935 RE71557 Ignition Keys for John Deere Tractor Combine
- 5 PCS John Deere Key RE183935 RE71557 Ignition Key for John Deere Tractor
- Rotary Mower Ignition Key Replaces John Deere AM116304 MIA11938
- HXN 5-Pack Ignition Switch Key for John Deere Tractor Lawn Mower
Lawn Mower Ignition Keys GY20680 LVA17264 Compatible with John Deere
This two-pack offers excellent value and compatibility for a vast range of John Deere lawn and garden tractors. It is designed to replace part numbers GY20680 and LVA17264, making it a fit for popular series like the D100, L100, LA100, and X300. Having two keys means you can keep one as a spare, preventing future lockouts.
Beyond John Deere, this key also works with several other major brands, including Murray, Toro, and AYP/Sears/Roper models. This wide-ranging compatibility makes it a versatile and practical solution for many homeowners who may have multiple pieces of equipment from different manufacturers.
Gy20680 Gx24332 Lgnition Keys Replacement for John Deere D100 D105
For those who want extra spares, this three-pack is an ideal choice. It covers the essential GY20680 and GX24332 part numbers and is confirmed to fit the John Deere D100 and X300 series tractors. The additional keys are perfect for storing in a toolbox, garage, or with a family member to ensure access is always available.
The keys are manufactured to meet original specifications, providing a reliable fit and function. While the appearance may have minor variations from the original, they are built to perform the same task effectively, turning your ignition switch without any issues.
John Deere Original Equipment Key #GY20680
If you prefer genuine John Deere parts, this is the key for you. This is the official OEM key, part number GY20680, sourced directly from the manufacturer. It guarantees a perfect fit and flawless operation with your compatible John Deere equipment, providing complete peace of mind.
It comes in the original, easy-to-open packaging, ensuring you receive an authentic product. For owners who want to maintain their equipment with factory-original components, this single key is the definitive replacement option.
6PCS Lawn Mower Ignition Keys GY20680 Replacement for Jo-hn Deere
This bulk six-pack is the ultimate solution for preventing key loss. With half a dozen keys, you can equip your tractor, keep spares in multiple secure locations, and even share with family or employees. It offers the same extensive compatibility as other GY20680 replacements, fitting a long list of John Deere models.
The value of this pack is significant for anyone who manages multiple properties or simply wants the security of knowing a replacement is always on hand. The keys are durable and designed for repeated use, making this a smart, long-term investment.
2pcs RE183935 RE71557 Ignition Keys for John Deere Tractor Combine
This set is specifically designed for larger John Deere equipment. It replaces part numbers RE183935 and RE71557, which are used in compact utility tractors, farm tractors, and combines like the 3033R, 3320, and 5525 models. This is not a key for typical lawn tractors but for more substantial agricultural and commercial machinery.
The two-pack ensures that owners of this heavier equipment also have a backup. The robust construction is suited for the demanding environments in which these machines operate.
5 PCS John Deere Key RE183935 RE71557 Ignition Key for John Deere Tractor
For fleet managers or farmers with multiple large machines, this five-pack of RE183935/RE71557 keys is a practical choice. It covers an extensive list of tractor models, from the 2032R compact tractor to the 9400 series row-crop tractor. The high quantity is perfect for keeping keys organized across a large operation.
These keys feature a durable metal blade and the characteristic red plastic cover. The quality construction ensures they can withstand the rigors of daily use on a farm or worksite.
Rotary Mower Ignition Key Replaces John Deere AM116304 MIA11938
This key addresses the need for a different type of John Deere key, specifically replacing part numbers AM116304 and MIA11938. These part numbers are often associated with commercial mowers and other specific John Deere equipment that does not use the more common GY20680 key.
If your machine requires this specific key type, this replacement offers a direct and functional solution. It is essential to verify your equipment’s part number to ensure this is the correct fit for your ignition.
HXN 5-Pack Ignition Switch Key for John Deere Tractor Lawn Mower
The HXN 5-pack provides another excellent multi-key option for John Deere owners. While specific model details are broad, this pack is generally designed to fit many common John Deere lawn tractors and mowers, offering great value through quantity.
Brands like HXN specialize in producing reliable aftermarket parts that meet or exceed OEM standards. This pack allows you to secure your investment with multiple backups, ensuring you are prepared for the future.
Buying Guide: How to Choose the Right John Deere Lawn Mower Key Replacement
When I need to find a replacement key for my John Deere mower, my first step is always to check the key that’s already in the ignition, if I have it. Many models have the key number stamped directly on the head. The most common numbers are AM127, AM141, and M805466. Knowing this number makes the search incredibly straightforward. If the key is completely lost, I look for the model number of the mower itself, which is usually on a sticker or plate under the seat or on the frame. I can then use that model number to cross-reference the correct key part number on the John Deere website or with a parts retailer.
The next thing I consider is whether to go with an original equipment manufacturer (OEM) key or a generic aftermarket one. OEM keys, purchased directly from John Deere, guarantee a perfect fit and function. They are typically made from durable materials and are my go-to for peace of mind. Aftermarket keys, on the other hand, are often much more affordable and are sold in multi-packs. I have found that for common key types, these work just fine. I always read the product descriptions carefully to ensure compatibility, as a poorly fitting key can damage the ignition switch over time.
I also think about material and build quality. A good key should feel substantial, not flimsy. I avoid keys that look cheaply molded and instead look for ones made from strong nylon or a similar robust plastic. The blade should be straight and free of any imperfections. For a few extra dollars, getting a key with a protective rubber head or a larger, easier-to-grip design can be a nice upgrade, especially if I have trouble turning the ignition.
Finally, I plan for the future. Since keys are small and easy to misplace, I almost always buy a multi-pack. Having a couple of spare John Deere lawn mower key replacements means I am never stuck when one goes missing. I keep one on my main key ring, one in the garage, and maybe even one in the house. This simple habit has saved me from a frustrating weekend more than once. It is a small investment that ensures my mowing schedule stays on track.
Frequently Asked Questions
Where can I find the key number for my John Deere mower?
If you still have the key, the number is almost always stamped or molded into the plastic head. Look for codes like AM127 or AM141. If the key is lost, your best bet is to find the model number of your lawn mower (check on the frame or under the seat) and use that to look up the required key part number in the operator’s manual or on the John Deere parts website.
Are generic replacement keys as good as the official John Deere ones?
For simple ignition keys, generic replacements are often perfectly adequate. I have used them without issue. The primary advantage of an official key is the guaranteed fit and finish, which is reassuring. However, for a common key type, a well-reviewed aftermarket key from a reputable seller will usually work just fine and save you some money, especially if you buy a pack with spares.
What should I do if a replacement key doesn’t turn in the ignition?
First, do not force it. Forcing a key can break it off in the switch or cause internal damage. Double-check that you have the correct key part number for your specific mower model. If it is the right key, try jiggling the steering wheel slightly as sometimes the steering lock can put pressure on the ignition mechanism. If it still does not work, the issue might be with the ignition switch itself and not the key.
Can I get a universal key that works on all John Deere mowers?
No, there is not a single universal key for all models. John Deere uses several different key codes across its range of lawn and garden tractors, zero-turn mowers, and other equipment. While some key codes are very common and used on many models, you still need to match the specific key profile to your machine’s ignition switch for it to work.
Is it worth buying a multi-pack of keys?
In my opinion, absolutely. Keys are one of those small items that are incredibly easy to lose. Buying a two or three-pack is a cheap form of insurance. I keep one on my keychain and store the others in a known spot in my garage or toolbox. This way, I am never searching for a key when I am ready to mow, and I always have a backup on hand.
What is the average cost for a John Deere lawn mower key replacement?
The price can vary. A single official OEM key from a John Deere dealer might cost between $10 and $20. Aftermarket keys are significantly cheaper, often priced at just a few dollars each, especially when purchased in multi-packs. For a common key, you can frequently find a two-pack for under $10 online.