John Deere LA105 Riding Mower Parts
The John Deere LA105 was a popular lawn tractor model produced from 2007 to 2010 as part of the LA100 series. Powered by a reliable 19.5 HP Briggs & Stratton single-cylinder engine and featuring a 42-inch mower deck, the LA105 was known for its ease of use and dependable performance in residential lawn care. This model offered a great balance of power and maneuverability for maintaining medium-sized yards.
The John Deere LA105 was introduced in 2007 as part of the LA100 series, a line of lawn tractors designed for residential use. It featured a 19.5 horsepower Briggs & Stratton single-cylinder OHV engine, displacing 540cc. The engine provided ample power for mowing and light yard work. The LA105 came equipped with a hydrostatic transmission, offering smooth and easy speed control. It had a 42-inch side-discharge mower deck, providing a wide cutting swath for efficient mowing. Key features included an adjustable seat, easy-to-reach controls, and a durable steel frame. It was primarily used for mowing lawns in residential settings. The LA105 distinguished itself within the John Deere lineup by offering a balance between affordability and performance, appealing to homeowners who needed a reliable and capable lawn tractor without the higher price point of the premium X300 series.
Specifications
| Engine | Briggs & Stratton 19.5 HP 540cc Single-Cylinder OHV |
|---|---|
| Transmission | Hydrostatic |
| Deck Size | 42 inches |
| Ground Speed | 5.5 mph |
| Fuel Capacity | 2.4 gallons |
| Weight | 440 lbs |
| Years Produced | 2007-2010 |
Maintenance Tips
- Replace the mower deck belt every 2-3 years, or sooner if you notice cracking, fraying, or slipping.
- Sharpen or replace mower blades annually for a clean and efficient cut. Check for damage regularly.
- Change the engine oil and filter every 50 hours of use or at least once a year.
- Before storing for the winter, stabilize the fuel, change the oil and filter, and disconnect the battery. Store in a dry place.
History & Background
The John Deere LA105 was launched in 2007 and remained in production until 2010. As part of the LA100 series, it represented a mid-range option for homeowners seeking a capable and reliable lawn tractor. This model provided a popular choice for residential lawn care during its production years.
Frequently Asked Questions
What size deck does the John Deere LA105 have?
The John Deere LA105 is equipped with a 42-inch mower deck.
What engine is in the John Deere LA105?
The John Deere LA105 has a 19.5 horsepower Briggs & Stratton single-cylinder OHV engine.
What belt do I need for my John Deere LA105?
The John Deere LA105 uses a 42-inch mower deck belt. Refer to your owner's manual for the correct part number or measure your existing belt to find a suitable replacement. Also, check the drive belt condition.
What blades fit the John Deere LA105?
The John Deere LA105 requires two 21-inch blades to fit its 42-inch deck. Use John Deere part number M154062 or a compatible aftermarket blade designed for this model and deck size.

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