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Ryobi 40V HP Brushless 21 in. Self-Propelled Lawn Mower (Tool Only)

Model number
RY40HPLM01B

The Ryobi RY40HPLM01B is the tool-only version of Ryobi's 40V HP brushless 21 in. self-propelled lawn mower, designed for homeowners who already own 40V HP batteries. The brushless motor is rated equivalent to a 163cc gas engine and powers a variable-speed rear-wheel drive system with SMART TREK adaptive speed control that automatically matches the mower's pace to your walking speed. The Cut Command Center display gives at-a-glance feedback on runtime and motor load. Ten cutting height positions span 1–4 in. to handle a variety of grass conditions, and the mower supports bag, mulch, and side-discharge functions. As a bare tool, no battery or charger is included.

identifiers stable · addressable
Model no.
RY40HPLM01B
Brand
Ryobi
Category
Lawn Mower
Canonical URL
/ryobi/lawn-mower/ry40hplm01b-ryobi-40v-hp-brushless-21-in-self-propelled-mower-tool-only/
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
Self-Propelled (Variable Speed Rear-Wheel)
Cutting Height Positions
10
Cutting Height Range In
1–4
Cutting Functions
Bag / Mulch / Side Discharge
Smart Trek
Yes
Cut Command Center
Yes
Gas Equivalent Cc
163
Tool Only
Yes
Batteries Included
0
Battery Included
No
Charger Included
No
Warranty
3-year limited

§ What's Included

01 (1) RY40HPLM01B 40V HP Brushless 21 in. Self-Propelled Mower
02 (1) Grass Bag
03 (1) Mulch Plug
04 (1) Side Discharge Chute
05 (1) Start Key

§ Warranty

3-year limited

§ FAQ

Does the RY40HPLM01B come with a battery?

No. The RY40HPLM01B is a tool-only SKU that does not include a battery or charger. It is intended for buyers who already own 40V HP batteries. For a complete kit, see the RY40HPLM01K2, which includes two 6.0 Ah batteries and a charger.

What is SMART TREK on this mower?

SMART TREK is Ryobi's adaptive drive speed system. It automatically adjusts the rear-wheel drive speed to match your natural walking pace, so you do not have to manually set a drive speed lever. This reduces operator fatigue on longer mowing sessions.

How many cutting height positions does the RY40HPLM01B have?

The mower offers 10 cutting height positions ranging from 1 in. to 4 in., providing enough range to handle fine turf maintenance through taller rough-cut conditions.

What cutting functions does this mower support?

The RY40HPLM01B supports three cutting modes: bagging (using the included grass bag), mulching (using the included mulch plug), and side discharge (using the included chute).

What gas engine does this mower replace?

Ryobi rates the 40V HP brushless motor in the RY40HPLM01B equivalent to a 163cc gas engine, which represents a mid-range walk-behind mower in traditional gas terms.