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STIHL®

21-Inch RMA 510 Self Propel Battery Powered Lawn Mower

Mfg.#: RMA 510
Sku#: 3572708

$549.99 /EA

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The lightweight RMA 510 has a wide 21" deck width, 20" cutting width, and can mow approximately 3,616 sq. ft.
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.
Power Switch - Just push the button and pull the switch lever for instant startup.
Reduced-Emission Engine Technology—Caring for Nature - The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.

* Estimated stock levels as of Sat, Apr 11, 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.

LAWN MOWER ONLY. 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

Area of Use	3,616 sq. ft. mowed with AP 300 S
Battery System	AP System
Cutting Height	1.4" – 3.5"
Deck Width	21 in.
Grass Bag Capacity	19.8 gal.
Power Source	Battery
Self Propelled	Yes
Type	Self-Propelled Lawn Mower

Dimensions

Cutting Path	20 in
Weight	59.5 lbs.

Manufacturing Details
The following information is subject to change without notice

Manufacturer Warranty	3 years
Prop 65 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.
Shop USA	Yes

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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STIHL®

21-Inch RMA 510 Self Propel Battery Powered Lawn Mower

$549.99 /EA

Price cannot be displayed.
Add to your cart to see price.

Out of stock