---
product_id: 651006773
title: "PowerSmart 21\" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System"
brand: "powersmart"
price: "HK$11542"
currency: HKD
in_stock: true
category: "Power Smart"
url: https://www.desertcart.hk/products/651006773-powersmart-21-self-propelled-lawn-mower-with-140cc-briggs-stratton
store_origin: HK
region: Hong Kong
---

# 6 Adjustable Cutting Heights 140cc Briggs & Stratton Engine Heavy-Duty 21" Steel Deck PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System

**Brand:** powersmart
**Price:** HK$11542
**Availability:** ✅ In Stock

## Summary

> 🌿 Cut Above the Rest — Power, Precision, and Effortless Lawn Care!

## Quick Answers

- **What is this?** PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System by powersmart
- **How much does it cost?** HK$11542 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/651006773-powersmart-21-self-propelled-lawn-mower-with-140cc-briggs-stratton)

## Best For

- powersmart enthusiasts

## Why This Product

- Trusted powersmart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Durable 21-inch heavy-duty steel deck designed to withstand tough lawn conditions and large yard demands.
- • **3-in-1 Versatility:** Seamlessly switch between mulching, bagging, and rear discharge for a perfectly manicured yard.
- • **Effortless Mobility:** Self-propelled drive reduces fatigue, making mowing large or uneven lawns a breeze.
- • **Power Meets Precision:** Robust 140cc Briggs & Stratton engine delivers effortless, professional-grade cutting power every time.
- • **Tailored Lawn Perfection:** Six adjustable cutting heights let you customize your lawn’s look seasonally or by grass type.

## Overview

The PowerSmart 21" Self-Propelled Lawn Mower combines a powerful 140cc Briggs & Stratton engine with a rugged steel deck and 6 adjustable cutting heights. Its 3-in-1 mulching system and self-propelled design make it ideal for professional-quality lawn care with less effort, perfect for millennials who demand efficiency and style in their outdoor tools.

## Description

desertcart.com : PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System : Patio, Lawn & Garden

## Features

- POWERFUL B & S ENGINE: Featuring a robust 140cc BS EX550 engine, this mower delivers exceptional cutting power for a pristine lawn. The auto choke and recoil starter ensure quick and effortless starts.
- HEAVY-DUTY STEEL DECK: Built with a 21-inch steel cutting deck, this mower is designed for durability and efficiency, making it perfect for large lawns and tough conditions.
- 6 ADJUSTABLE CUTTING HEIGHTS: Customize your lawn care with 6 height settings, allowing you to adapt to different grass lengths and seasonal needs for a professional finish.
- 3-IN-1 VERSATILITY: Easily switch between mulching, bagging, and rear discharge modes to suit your lawn care preferences and achieve a well-maintained yard.
- SELF-PROPELLED EASE: The self-propelled feature reduces user effort, especially on uneven terrain or large yards, making mowing a hassle-free experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DCZ66JXB |
| Best Sellers Rank | #299,444 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #431 in Walk-Behind Lawn Mowers |
| Brand Name | PowerSmart |
| Color | Red+Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (127) |
| Cutting width | 21 Inches |
| Item Dimensions D x W x H | 29.5"D x 16.5"W x 20"H |
| Item Type Name | Gas Lawn Mower |
| Item Weight | 70 Pounds |
| Manufacturer | PowerSmart |
| Manufacturer Part Number | B8721S1 |
| Material Type | Alloy Steel |
| Maximum Adjustable Cutting Height | 3.9 Inches |
| Minimum Adjustable Cutting Height | 1.5 Inches |
| Model Number | B8721S1 |
| Number of Positions | 6 |
| Operation Mode | Automatic |
| Power Source | Gas Powered |
| Required Assembly | Yes |
| Style Name | Self Propelled |
| UPC | 840432706619 |
| Wheel Size | 29.5 Inches |

## Product Details

- **Brand:** PowerSmart
- **Color:** Red+Black
- **Cutting Width:** 21 Inches
- **Item Weight:** 70 Pounds
- **Material:** Alloy Steel
- **Number of Items:** 1
- **Operation Mode:** Automatic
- **Power Source:** Gas Powered
- **Product Dimensions:** 29.5"D x 16.5"W x 20"H
- **Style:** Self Propelled

## Images

![PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System - Image 1](https://m.media-amazon.com/images/I/71jMykNb3wL.jpg)
![PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System - Image 2](https://m.media-amazon.com/images/I/81O6ihW-RLL.jpg)
![PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System - Image 3](https://m.media-amazon.com/images/I/81ljtIyOTSL.jpg)
![PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System - Image 4](https://m.media-amazon.com/images/I/71xTLxDWUUL.jpg)
![PowerSmart 21" Self-Propelled Lawn Mower with 140cc Briggs & Stratton Engine - Heavy-Duty Steel Deck, 6 Cutting Heights, 3-in-1 Mulching System - Image 5](https://m.media-amazon.com/images/I/71afFxJD8xL.jpg)

## Available Options

This product comes in different **Set** options.

## Frequently Bought Together

- PowerSmart 21in Self Propelled Lawn Mower, 3-in-1 Gas Mower 140cc 4-Stroke Engine, Adjustable Cutting Height, 3-in-1 with Side Discharge, Mulching, Rear Bagging with Large Grass Catcher
- Outdoors Lawn Mower Cover Heavy Duty 420D Polyester Oxford Waterproof UV Universal Fit Push Lawn Mower with PA Coating & Double Drawstring & Storage Bag, Waterproof Lawnmower Covers for Outdoor, Black
- Himal Outdoors Lawn Mower Cover - Heavy Duty 600D Polyester Oxford Waterproof, UV Protection Universal Fit with Drawstring & Cover Storage Bag, Black

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**Shop now:** [https://www.desertcart.hk/products/651006773-powersmart-21-self-propelled-lawn-mower-with-140cc-briggs-stratton](https://www.desertcart.hk/products/651006773-powersmart-21-self-propelled-lawn-mower-with-140cc-briggs-stratton)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-07-15*