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21-Inch Lithium Ion Lawn Mower Super Set
- Mfg.#
- RMA 510 SET SUP
- Sku#
- 3924982
- 21-Inch Stool Moving Deck- Users Can Trust That The Steel Mowing Deck Will Provide More Durability Than A Plastic Alternative
- Convenient Handle- Not Only Is The Handlebar Easily Adjustable For User Comfort, It Also Folds Making It Easy To Transport And Store The Mower
- Brushless Motor- The Advanced Brushless Motor Virtually Eliminates Maintenance While Supplying The Power And Performance You Expect From STIHL
- Ball Bearing Wheels- The Sealed Ball Bearing Wheels Are Designed For Long Life
- Multiple Storage Options- The Mower Can Be Stowed in Three Positions: Folded on All Four Wheels, Unfolded On All Four Wheels, Or Upright And Folded In The Cleaning Position With Blades Facing The Wall To Save Floor Space
* Estimated stock levels as of Fri, Apr 10, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
The RMA 510 gives homeowners the performance of a gasoline-powered mower without any of the hassles. Enjoy instant starting, less noise, zero gasoline costs, and zero exhaust emissions. It features a 21" steel mowing deck, so you can cover more lawn faster than previous models. The RMA 510 also includes a holding slot for a second battery, so you can swap batteries and be ready to cut again in seconds. It also features an adjustable handlebar, grass catcher, and large rear wheels for rough terrain. This battery-powered lawn mower is great for small to medium suburban yards.
On A Single Charge™. *Run time may vary based on battery type, charge level and capacity, model, operating style, and conditions. Batteries and chargers can be purchased separately or as a combined set with tool.
Read Owners Manual for extended warnings and directions prior to use.
Specifications
General
| Battery System | AP System |
|---|---|
| Cutting Height | 1.4 in - 3.5 in |
| Cutting Width | 20 in |
| Deck Width | 21 in |
| Grass Bag Capacity | 19.8 gal |
| Power Source | Battery |
| Self Propelled | No |
| Type | Lawn Mower |
Dimensions
| Weight | 59.5 lb |
|---|
Manufacturing Details
The following information is subject to change without notice
| Shop USA | Yes |
|---|
