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STIHL®

21-Inch Self-Propelled Mower With AP300 S Battery And AL 301 Charger

Mfg.#
RMA 510 V SET SUPER
Sku#
3739927
  • Self-Propelled - The self-propel function features a variable-speed setting control, reducing user fatigue by offering choices of mowing speeds.
  • 21-Inch Steel Mowing Deck - Users can trust that the steel mowing deck will provide more durability than a plastic alternative.
  • Convenient Handle - Not only is the handlebar is 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.

* Estimated stock levels as of Sat, Mar 7, 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

Just the squeeze of a lever engages the RMA 510 V battery-powered lawn mower’s efficiency-driven performance, helping reduce fatigue commonly caused by traditional push mowers. A 21-inch steel mowing deck with a 20-inch cutting width makes the RMA 510 V highly maneuverable and able to quickly cover small-to-medium size yards. The mower’s self-propel function features a variable-speed setting control, allowing choices of mowing speeds between 0.6 mph and 2.8 mph. With the 36-volt STIHL AP 300 S battery, the RMA 510 V can mow up to 3,078 square feet On A Single Charge™.* With battery, enjoy instant starting, low noise, zero gasoline costs, and zero exhaust emissions. For added convenience and customization, the deck of the RMA 510 V is adjustable to seven different cutting heights, and the handlebar adjusts to three height positions. Durable, ten-inch rear wheels and eight-inch front ball-bearing wheels allow for mowing over rough terrain.

Read Owners Manual for extended warnings and directions prior to use.

Specifications

General

Battery System AP System
Catcher Capacity 19.8 gal.
Coverage Area 3,078 sq. ft.
Cutting Height 1’’– 3.9”
Cutting Width 20 in
Includes Self-Propelled Mower With AP300 S Battery And AL 301 Charger
Number of Positions 7
Power Source Battery
RPM Mowing Blade Speed: 3,200 rpm
Self Propelled Yes
Type Self-Propelled Mower

Dimensions

Cutting Path 20 in
Weight 67.86 lbs

Manufacturing Details
The following information is subject to change without notice

Manufacturer Warranty 3 years
Prop 65 Warning Warning WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Label Information

Precautionary Statement CAUTION: Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products.

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Related Documents

Brochure (PDF)

Warranty (PDF)

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