John Deere S100 Riding Mower Parts
The John Deere S100 riding mower is a popular entry-level lawn tractor known for its reliability and ease of use. Typically manufactured from 2018 onward, the S100 features a dependable single-cylinder Briggs & Stratton engine delivering around 17.5 horsepower. Commonly equipped with a 42-inch mowing deck, it's an excellent choice for homeowners with medium-sized lawns.
The John Deere S100 was introduced as part of the 100 series lineup, designed to provide a balance of affordability and John Deere quality for residential lawn care. It's powered by a Briggs & Stratton single-cylinder engine, typically producing around 17.5 horsepower (approximately 500cc). The transmission is a hydrostatic automatic, offering smooth and easy speed control. The S100 is typically equipped with a 42-inch Edge™ cutting system mower deck. Key features include a comfortable seat, easy-to-use controls, and a durable frame. While not designed for heavy-duty commercial use or extensive acreage, the S100 excels at maintaining residential lawns, providing a clean and efficient cut. It distinguishes itself from higher-end John Deere models with its simpler design and features, focusing on essential lawn mowing capabilities at a competitive price point.
Specifications
| Engine | Briggs & Stratton 17.5 HP 500cc Single-Cylinder |
|---|---|
| Transmission | Hydrostatic Automatic |
| Deck Size | 42 inches |
| Ground Speed | 5.5 mph |
| Fuel Capacity | 2.4 gallons |
| Weight | 445 lbs |
| Years Produced | 2018 - Present |
Maintenance Tips
- Check and replace the mower deck belt every 200-300 hours of use or annually, depending on usage. Inspect for cracks and wear.
- Sharpen or replace mower blades at least once a season, or more often if you notice tearing of the grass instead of a clean cut.
- Change the engine oil and filter according to the manufacturer's recommendations, usually every 50 hours of operation or at least annually.
- Before storing the mower for the winter, stabilize the fuel, clean the mower deck, and disconnect the battery.
History & Background
The John Deere S100 was introduced in 2018 as part of a refreshed 100 series lineup. It's designed to be an entry-level, reliable riding mower for residential use. The S100 remains a popular choice for homeowners looking for a straightforward and dependable lawn care solution within the John Deere family.
Frequently Asked Questions
What size deck does the John Deere S100 have?
The John Deere S100 is typically equipped with a 42-inch mowing deck.
What engine is in the John Deere S100?
The John Deere S100 usually has a Briggs & Stratton single-cylinder engine with 17.5 horsepower.
What belt do I need for my John Deere S100?
You'll typically need a 1/2" x 95" deck belt for the 42" deck. Consult your owner's manual for the exact belt size and John Deere part number for both the deck belt and drive belt.
What blades fit the John Deere S100?
The John Deere S100 with a 42-inch deck requires two 21-inch blades. They typically feature a star center hole for mounting.

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