The RMA 510 can mulch when the included mulching kit is installed or side discharge with the discharge chute installed.
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STIHL 21in. Self-Propelled Lawn Mower

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- 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.
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Description
Key Specs
Reviews
Q & A
Warranty
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Product Summary
What's Included
- (1) RMA 510 V (1) AP 300 S (1) AL 301
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Features + Benefits
- 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.
- 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.
- Battery Life - With no gradual drop in power, users can work at full speed until the battery is depleted.
- Power Switch - Just push the button and pull the switch lever for instant startup.
- Locking Key - Key prevents accidental starting of the motor.
- 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.
Key Specs
| Attribute | Specification |
|---|---|
item# | 5890559 |
Brand | Stihl |
Manufacturer's Warranty | 3 year limited warranty |
Ship Weight | 89.5 LB |
Cutting Width | 21 in |
Power Source | Battery |
Min. Cut Height | 1 in |
Max. Cut Height | 3.9 in |
Self-Propelled | Yes |
| Attribute | Specification |
|---|---|
Bagger Included | Yes |
Blades (qty.) | 1 |
Max. Speed | 2.8 MPH |
Wheel Type | Poly |
Deck Material | Steel |
Product Category | Walk-Behind Mowers |
Product Weight | 83.3206 lb |
Dimensions L x W x H (in.) | 34.905 x 23.985 x 18.135 in |
Reviews
Questions & Answers
Questions
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· a year ago
Is this a mulching mower or do you have to use the bagger?
1 answer-
ProductExpert11· a year ago
Helpful?
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· a year ago
what is included, there are numbers, but no descriptions
1 answer-
ProductExpert29· a year ago
The STIHL 21-inch Self-Propelled Lawn Mower (RMA 510 V) comes with an AP 300 S battery for extended runtime and an AL 301 charger.
Helpful?
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· 2 years ago
is this rear wheel drive
1 answer-
ProductExpert11· 2 years ago
The mower is rear wheel drive.
Helpful?
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· 2 years ago
Does this mower mulch also ?
1 answer-
ProductExpert6· 2 years ago
The mower has three cutting options, mulch, side discharge and rear bag.
Helpful?
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· 2 years ago
Does the charger come with the batteries?
1 answer-
ProductExpert18· a year ago
This mower will include (1) Battery and (1) Charger.
Helpful?
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· 2 years ago
How many minutes does the battery last
1 answer-
ProductExpert11· 2 years ago
There is not a specific time frame per minute that the battery will last. It is estimated per square footage. For the AP300 battery, the estimated square footage is 2583 sq. ft. For the AP300S battery, the estimated square footage is 3078 sq. ft. And with the AP500S battery, the estimated square footage is 3842 sq. ft.
Helpful?
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Warranty
Manufacturer's Warranty
3 year limited warranty
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Specifications
21 in
18 in
14 in
19 in
Battery
Manual
Manual
Battery
1 in
2 in
0.5 in
1.37 in
3.9 in
3 in
2.5 in
3.75 in
Yes
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No
Yes
No
No
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1
5
5
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2.8 MPH
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Poly
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Steel
Steel
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Walk-Behind Mowers
Walk-Behind Mowers
Walk-Behind Mowers
Walk-Behind Mowers
83.3206 lb
40.0000 lb
19.0000 lb
62 lbs.
34.905 x 23.985 x 18.135 in
24.0 x 24.0 x 47.0 in
20.0 x 24.0 x 43.0 in
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Manual
Manual
Electric
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10 in
8.5 in
8 in
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6 in
-
10 in



