
















S100 42 In. 17.5 HP Gas Hydrostatic Riding Lawn Mower
- 2.4 Gal. fuel tank cuts 1 acre of flat or slightly hilly land
- Features 42″ Accel Deep Mower Deck and Edge Cutting System
- Includes gas riding mower, battery, and engine oil
- For questions about service and repair, please call the John Deere Customer Contact Center at 800-537-8233 or reference the Service & Repair document
- 17.5 HP John Deere branded engine has plenty of power for up to 1 acre
- 42 in. Edge Cutting System has a deep deck design to lift grass for a superior cut with a smooth underside to prevent grass buildup
- Mower deck lift lever easily raises and lowers the deck from 1 in. to 4 in. with 13 available cutting heights
- Ergonomic operator station is wide and comfortable with easily adjustable controls
- Powerful (300 cca) battery helps with starts even after lengthy storage
- Download the MowerPlus app to easily view engine hours and fuel level
- Fully welded steel frame and cast iron front axle provides strength and durability with an optional front bumper available for added protection
- Wash port is included for your convenience to clean the underside of the deck
- Hassle free ownership a John Deere authorized technician will perform a thorough 10 point pre-delivery inspection on all new John Deere mowers prior to sale
- Baggers, carts, aerators, spreaders, front blades, mulch kits and snow blowers are sold separately to help with projects around the yard
- Be sure to register your 2-year bumper to bumper warranty registration and stay connected with your servicing John Deere dealer
- Engine horsepower and torque information are provided by the engine manufacturer to be used for comparison purposes only, actual operating horsepower and torque will be less; refer to the manufacturer’s website for additional information
Most orders ship within 1-3 business days.
All major cards accepted, protected checkout.
New and factory-reconditioned items are covered. See product details for warranty length.
Orders are processed within 1-3 business days. Large equipment ships via freight with delivery scheduled by appointment. See our Shipping Policy for details.
Most items can be returned within 30 days of delivery for a full refund, less original shipping costs. See our Refund Policy for full details.
Factory-reconditioned items are inspected and serviced by the manufacturer to meet original performance specifications, and are covered by warranty. Check this product's title and description to confirm its condition.
Yes. Manufacturer warranty terms apply as noted on this product page. Contact us if you need help with a warranty claim.
Have a question about fit, specs, or which model is right for you? Contact us and we'll help you decide.

Customer reviews
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Upgraded from an old push mower and the difference is night and day. Would recommend to anyone considering the S100 42 In. 17.5 HP Gas Hydrostatic Ridi.
Really happy with this. Handles thick grass without bogging down at all.
Couldn't be happier. Handles thick grass without bogging down at all. Would recommend to anyone considering the S100 42 In. 17.5 HP Gas Hydrostatic Riding Lawn Mower.
Starts on the first pull every time so far, very happy with it. Would recommend to anyone considering the S100 42 In. 17.5 HP Gas Hydrostatic Ridi.
Upgraded from an old push mower and the difference is night and day. A little pricier than I hoped but the quality justifies it. Would recommend to anyone considering the S100 42 In. 17.5 HP Gas Hydrostatic Ridi.
Deck height adjustment is easy and the results look great.
Cuts evenly even on our sloped yard, very happy with the power. Assembly took a bit longer than expected but works great.
Exceeded my expectations. Deck height adjustment is easy and the results look great. Would recommend to anyone considering the S100 42 In. 17.5 HP Gas Hydrostatic Riding Lawn Mower.
Really happy with this. Deck height adjustment is easy and the results look great. Would recommend to anyone considering the S100 42 In. 17.5 HP Gas Hydrostatic Riding Lawn Mower.