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Ryobi 40V HP Brushless 21 in. Push Lawn Mower Kit (8.0 Ah)

Model number
RY40HPLM05K

The Ryobi RY40HPLM05K is a straightforward 40V HP brushless 21 in. push mower kit that ships with a single 8.0 Ah battery for up to 55 minutes of runtime. The brushless motor is rated at a 163cc gas equivalent and features the Cut Command Center display with turbo mode for thicker grass. Seven cutting height positions span 1.5–4 in. and the deck supports bag, mulch, and side-discharge modes. Without a self-propulsion system or dual-blade upgrade, the RY40HPLM05K is the most accessible entry point to the 21 in. 40V HP mower platform, making it a practical choice for smaller flat yards where simplicity and value are the priority.

identifiers stable · addressable
Model no.
RY40HPLM05K
Brand
Ryobi
Category
Lawn Mower
Canonical URL
/ryobi/lawn-mower/ry40hplm05k-ryobi-40v-hp-brushless-21-in-push-mower-kit/
Official page ryobitools.com →
17 spec rows · each row is anchorable

§ Specifications

#specifications
Voltage (V)
40
Platform
40V HP
Cordless / Corded
Cordless
Motor Type
Brushless
Deck Width In
21
Drive Type
Push
Cutting Height Positions
7
Cutting Height Range In
1.5–4
Cutting Functions
Bag / Mulch / Side Discharge
Cut Command Center
Yes
Gas Equivalent Cc
163
Tool Only
No
Batteries Included
1
Battery Ah
8
Battery Included
Yes
Charger Included
Yes
Warranty
3-year limited

§ What's Included

01 (1) 40V HP Brushless 21 in. Push Mower
02 (1) 40V HP 8.0 Ah Lithium-Ion Battery
03 (1) 40V Fast Charger
04 (1) Grass Bag
05 (1) Mulch Plug
06 (1) Side Discharge Chute
07 (1) Start Key

§ Warranty

3-year limited

§ FAQ

How long does the RY40HPLM05K run per charge?

With the included 8.0 Ah 40V HP battery, the mower delivers up to 55 minutes of runtime. The single high-capacity battery approach keeps startup simple compared to dual-battery models.

Does the RY40HPLM05K have Cut Command Center?

Yes. The Cut Command Center display is included and shows real-time battery life and motor load. It also provides access to a turbo mode that boosts blade speed for thicker or wetter grass.

How many cutting height positions does this mower have?

The RY40HPLM05K offers 7 cutting height positions spanning 1.5 in. to 4 in. This is fewer than the 10-position range on the self-propelled and multi-blade models but still covers the most common residential cutting heights.

Does this mower support mulching?

Yes. The included mulch plug converts the mower to mulching mode. It also comes with a grass bag for bagging and a side-discharge chute, giving you all three cutting options.

How does this mower compare to the multi-blade push model RY40HPLM04K2?

The RY40HPLM04K2 adds the CROSS CUT dual-blade system for finer clipping shredding and higher bagging efficiency, ships with two 6.0 Ah batteries instead of one 8.0 Ah, and is priced higher. The RY40HPLM05K is the more affordable single-blade option for smaller flat yards.