4.5 cu. ft. Ultra Large Capacity Smart Front Load Washer

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WM3420CW
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
LG WM3420CW Washer reliability infographic showing $300-$550 appliance repair costs and America's Most Reliable Line of Appliances badge
*Based on cost of LG's out of warranty repair services in 2023.
LG WM3420CW Washer with 4.5 cu. ft. Ultra Large Capacity drum interior showing stainless steel design with water holes - Door Open View
New
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
New
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
LG WM3420CW Washer reliability infographic showing $300-$550 appliance repair costs and America's Most Reliable Line of Appliances badge
*Based on cost of LG's out of warranty repair services in 2023.
LG WM3420CW Washer with 4.5 cu. ft. Ultra Large Capacity drum interior showing stainless steel design with water holes - Door Open View

4.5 cu. ft. Ultra Large Capacity Smart Front Load Washer

WM3420CW
WM3420CW
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
LG WM3420CW Washer reliability infographic showing $300-$550 appliance repair costs and America's Most Reliable Line of Appliances badge
*Based on cost of LG's out of warranty repair services in 2023.
LG WM3420CW Washer with 4.5 cu. ft. Ultra Large Capacity drum interior showing stainless steel design with water holes - Door Open View
New
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
New
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
LG WM3420CW Front Load Washer with AMERICAS MOST RELIABLE LINE OF APPLIANCES badge - Front View
LG WM3420CW Washer reliability infographic showing $300-$550 appliance repair costs and America's Most Reliable Line of Appliances badge
*Based on cost of LG's out of warranty repair services in 2023.
LG WM3420CW Washer with 4.5 cu. ft. Ultra Large Capacity drum interior showing stainless steel design with water holes - Door Open View

Key features

  • Enjoy a 2-year limited warranty on select appliances purchased through April 08, 2026 via the ThinQ® app. Terms apply.ᶲ
  • 4.5 cu. ft. Ultra Large Capacity lets you clean larger loads
  • 6Motion™ technology uses different wash motions for a thorough clean
  • With ColdWash™ technology, clean like warm and save like cold
  • Built-in intelligence takes out the guesswork—AI technology selects optimal wash settings
  • Get the ThinQ® app to access smart functions, ThinQ Care™ alerts and download new ThinQ UP™ features
  • Direct Drive Motor 10-Year Limited Warranty
  • ENERGY STAR Certified for an efficient clean that saves on water and energy

Delivery

Add LG Premium Care by Asurion

This coverage adds to the standard manufacturer’s limited warranty. Not available in Florida.

Add Professional Installation

pro & pro care members: FREE simple services and 50% off select complex services (dishwasher, over-the-range microwave, wall oven, hood). Cost deducted at checkout. Terms apply.

Add Haul Away or Move

pro & pro care members: Add your preferred service for FREE. Cost deducted at checkout. Terms apply.

Add Laundry & Dry Cleaning Service

By claiming this offer, you agree to share your information with Rinse.com for credit redemption.


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Selection Total

$749.00

Free In-home Delivery

Delivery to your room of choice. Schedule your appointment during checkout. Next day available in select areas.

Terms may apply
Free Returns

Shop with confidence. Free returns within 14 days of delivery.

Haul Away Your Old Appliance

Upgrade with ease - we’ll handle the heavy lifting when you select the ‘Add Haul Away’ option at checkout.

Extended Coverage

1-year warranty with standard parts and labor included. Additional extended service plans available.

Specifications

download-guide iconDownload Energy Guide
  • Laundry Appliance Capacity
  • Summary
  • Energy
  • Washer Programs
  • Fabric Care Features
  • Laundry Appliance Convenience Features
  • Laundry Appliance ThinQ® Smart Features
  • Motor
  • Materials and Finishes
  • Power Source
  • Options/Accessories
  • Dimensions
  • Warranty & UPC
  • See All
  • Laundry Appliance Capacity
    Capacity
    4.5 cu. ft.
    Laundry Appliance Capacity
    Capacity
    4.5 cu. ft.
    Summary
    Product Color
    White (W)
    Dial-A-Cycle™
    Yes
    Hard Buttons
    No
    Electric Dryer Option
    DLE3420W
    Gas Dryer Option
    DLG3421W
    Series
    LG
    Touch Buttons
    Yes
    Type
    Front Load Washer
    Energy
    CEE Tier
    3
    ENERGY STAR® Most Efficient
    Yes
    ENERGY STAR Certified
    Yes
    IMEF
    3.1
    IWF
    2.9
    Washer Programs
    No. of Washer Programs
    10
    Washer Programs
    Quick Wash, AI Wash, ColdWash™, Bedding, Delicates, Downloaded, Heavy Duty, Normal, Perm. Press, Tub Clean
    No. of Washer Options
    8
    Washer Options
    Delay Start, Control Lock, Extra Rinse, Pre-wash, Remote Start, Signal, Spin Only, Wi-Fi
    No. of Wash/Rinse Temps
    5
    Wash/Rinse Temps
    Hot, Semi Warm, Warm, Cold, Tap Cold
    No. of Spin Speeds
    5
    Spin Speeds
    Extra High, High, Medium, Low, No Spin
    Water Levels
    Load Sensing
    No. of Soil Levels
    3
    Fabric Care Features
    Turbowash®
    No
    AI DD®
    Yes
    Soil Level Sensor
    No
    Allergiene™ Cycle
    No
    ColdWash™ Option
    Yes
    Sanitary Cycle
    No
    Steam Technology
    No
    Laundry Appliance Convenience Features
    4 Tray Dispenser
    Prewash, Main Wash (with liquid detergent cup), Bleach, Fabric Softener
    Auto Suds Removal
    Yes
    Control Lock
    Yes
    Drum Light
    No
    End of Cycle Signal
    Yes
    Leveling Legs
    Yes
    LoadSense
    Yes
    Cabinet Vibration Sensor
    Yes
    True Balance® Anti-Vibration System
    Yes
    Laundry Appliance ThinQ® Smart Features
    Energy Monitoring
    Yes
    NFC Tag On
    No
    PCC
    No
    SmartDiagnosis™ (v3.0)
    Yes
    Tub Clean Coach
    Yes
    Wi-Fi
    Yes
    Motor
    Axis
    Horizontal
    Max RPM
    1260
    Motor Type
    Inverter Direct Drive Motor
    Materials and Finishes
    All Available Colors
    White (W)
    Cabinet
    Painted Steel
    Control Panel
    Plastic
    Door / Rim
    Glass/White Rim
    Door Cover
    Clear Round Cover
    NeveRust™ Stainless Steel Drum
    Yes
    Top Plate
    Painted Steel
    Power Source
    Washer Electrical Requirements
    120 V, 60 Hz, 6 A
    Ratings
    UL Listed
    Washer Power Source Type
    Electric
    Options/Accessories
    LG Sidekick™ Pedestal Washer
    WD300CW
    Pedestal
    WDP6W
    Stacking Kit
    KSTK4
    Dimensions
    Carton (WxHxD)
    29 3/4" x 41 7/8" x 31 1/2"
    Depth with Door Open
    (55" D with door open)
    LG Sidekick™ Pedestal Washer (WxHxD)
    27 x 14 1/8 x 30 3/4 (50 1/2 D with door open)
    Pedestal (WxHxD)
    27" x 13 5/8" x 28" (43 7/8" D with door open)
    Product (WxHxD)
    27" x 39" x 30 1/4"
    Weight (Product/Carton)
    185.2 / 198.4 lbs.
    Warranty & UPC
    Direct Drive Motor
    10 Years
    Drum
    3 Years
    Parts and Labor
    1 Year
    UPC
    048231349895
    Features

    Get A Custom Clean
    Cleans Like Warm, Saves Like Cold
    Built-in Intelligence Takes Out The Guesswork
    Count On Quiet, Efficient Performance

    Based on the cycle you select, LG 6Motion™ technology uses up to 6 different wash motions, each designed to get clothes cleaner and help them last longer. Options range from a scrubbing PowerMotion that helps to dissolve stains to the gentle Swinging motion that’s ideal for delicates.

    Saving energy doesn’t have to mean compromising on cleaning with the ColdWash™ option. Powered by the LG Direct Drive Motor and 6 motion™ technology, it’s ideal for cleaning all types of clothes—even those you normally wash in warm water. Can be used with almost any wash cycle and virtually all fabric types.

    Forget about endless sorting or toggling through cycles—built-in sensors use AI technology to detect fabric texture and load size, then automatically select the right wash motions, temperatures and more for advanced fabric care.

    Backed by a 10-year limited warranty, the LG Direct Drive Motor delivers peace of mind with every load. Fewer moving parts means less noise and vibration, greater stability and durable performance you can depend on for years to come.

    For owners

    Warranty Information

    1LG SideKick™ Sold Separately.

    2Available on select LG smart appliances. Features may vary by model.

    Purchases must be made between January 01, 2026 and April 08, 2026. Consumers must download the LG ThinQ® App and connect product to Wi-Fi to claim their promotional ThinQ® limited warranty. See terms at https://www.lgoffers.com/Home


    Images may be simulated and dramatized for illustrative purposes. Actual features, functionality, and other product specifications may differ and are subject to change without notice. Prices, promotions, and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

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