21" Self Propelled w/ High Rear Wheels

Model Number : 12AAB2A3778

Increased engine power and maneuverability on uneven terrain make this 21" self-propelled lawn mower the best of the Brute® lawn mowers. The high-performance Briggs & Stratton® 163cc, 725exi Series™ engine with ReadyStart® technology offers easy starting, more durability and reduced noise levels for quieter operation. You'll never have to change the oil, ever with the check & add feature, for consumers who want the easiest to maintain engine for their lawn mower. Its user-friendly height-of-cut adjustor and 3-n-1 mower deck let you choose your cut and finish with side discharge, mulching or rear bagging options.


brutepower /

Product Details

Better Maneuverability

Glide through tall grass and around obstacles with 11" high rear wheels.

High Performance Briggs & Stratton® Engine

Powerful Briggs & Stratton 163cc 725exi Series Engine offers more durability and lower emissions while reducing noise levels for quieter operation.

More Cut Finish Options

With more cut finishes than other Brute walk mowers, this versatile mower let's you choose your cut finish from bagging, mulching or side discharging of grass clippings.

Fast Forward

Self-propelled mower features a front wheel drive system that propels the mower forward receiving power directly from the engine.

Easy to Start

The no prime, no choke ReadyStart® features make for quick starts every time.

Simple Height of Cut

Dual lever height-of-cut controls adjust to 6 different cutting positions and can easily be changed to meet lawn conditions or your preferences.

Robust Design

Durable steel mowing deck, dependable engine, adjustable handle and front wheel drive system are built to last.

21" Self Propelled w/ High Rear Wheels
Engine Brand Briggs & Stratton
Engine Series 725EXi Series™
Engine Displacement (cc) 163
Gross Torque* 7.25
Fuel Tank Capacity (gal) 1.09
Starting Autochoke
Width of Cut (in) 21
Height-of-Cut (in) 1.25 - 3.75
Height-of-Cut Adjustment Dual Lever
Height-of-Cut Positions 6
Deck Steel
Drive Type Self-Propelled
Drive Wheel Position Front
Handles Adjustable Loop
Front Wheel Size (in) 8
Rear Wheel Size (in) 11
Consumer Warranty 2 year

*All power levels are stated gross torque at 2600 RPM per SAEJ1940 as rated by Briggs & Stratton
** See Operator's Manual or www.brutepower.com for complete warranty details