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4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology
LG - 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White
Price range: $749.99
Brand: LG
Category: Washer
A 4.5 cu. ft. LG front load washer with 1260 RPM · Energy Star · Smart · 120 volts · 39 x 27 x 30 in.
PQS: 90 (computed 2026-03-18 07:11:51.799975+00:00)
GTIN-14: 00048231349895
Key specs
A human-friendly subset of specs (non-null)
Type
Front load
Capacity
4.5 cu. ft.
Spin speed
1260 RPM
Smart
Smart
Voltage
120 volts
Dimensions
39 x 27 x 30 in
Energy Star
Yes
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6668726 | 749.99 USD | In stock | View offer → | 2026-03-18 05:15:01.320909+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 749.99 USD | In stock | 2026-03-18 05:15:01.320909+00:00 |
Full specs
Show full spec table
| Type | Front load |
|---|---|
| Capacity (cu. ft.) | 4.5 |
| Spin speed (RPM) | 1260 |
| Energy Star | Yes |
| Dimensions | 39 x 27 x 30 in |
| Reconciled at | 2026-03-18 07:10:52.203092+00:00 |
Canonical JSON (expand)
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Related products
Simple similarity over extracted specs (publish_set only)
Debug data (expand)
| Raw title | LG - 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White |
|---|---|
| Raw brand | LG |
| Raw category | Best Buy > Appliances > Washers & Dryers > Washing Machines > Front-Loading Washers |
Canonical highlights (non-null)
| core.title | LG - 4.5 Cu. Ft. High-Efficiency Stackable Smart Front Load Washer with AI Wash and ColdWash Technology - White |
|---|---|
| core.seo_title | LG WM3420CW |
| brand | LG |
| model | WM3420CW |
| gtin14 | 00048231349895 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/bec1baec-8a6e-4af9-856b-5eb4fb6e45c8.jpg |
| display.panel_type | LED |
| category | washer |
| physical.depth_in | 30.0 |
| physical.width_in | 27.0 |
| physical.height_in | 39.0 |
| physical.weight_kg | 84.01 |
| physical.dimensions_in | 39 x 27 x 30 in |
| warranty.labor | 1 Year General |
| warranty.parts | 1 Year General, 10 Years Motor, 3 Years Drum |
| appliance.type | Front load |
| appliance.smart | True |
| appliance.steam | False |
| appliance.finish | White |
| appliance.energy_star | True |
| appliance.capacity_cuft | 4.5 |
| appliance.dimensions_hwd | 39 x 27 x 30 in |
| appliance.spin_speed_rpm | 1260 |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"features": [
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"feature": "4.5 cu. ft. Ultra Large Capacity\nSay never again to never-ending piles of laundry—this ultra large capacity washer fits more clothes in every load and helps you power through laundry day in less time. Bring on big loads of towels or jeans -this 4.5 cu. ft. washer fits more in every load up to 20 lbs."
},
{
"feature": "6Motion Technology\nBased 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."
},
{
"feature": "ColdWash Technology\nSaving 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."
},
{
"feature": "LG ThinQ Smart Technology\nThe LG ThinQ app offers control and convenience for smart LG appliances to help you simplify life and enjoy the comforts of home. Manage and monitor your washer remotely, track and download cycles, connect with Google or Alexa voice assistants, and access smart diagnosis, customer support, and much more."
},
{
"feature": "Built-In Intelligence: AI Fabric Sensor / Smart Pairing\nForget 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. With Smart Pairing, the washer can even tell the dryer to select a compatible drying cycle¹, making it the ultimate laundry hack."
},
{
"feature": "LG ThinQ UP\nThinQ UP enabled smart appliances may receive software updates for new downloadable features and enhancements to be sent wirelessly to the appliance. Choose which features you want and customize your appliance based on your lifestyle and personal preferences."
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"feature": "LG ThinQ Care\nAvailable within the LG ThinQ app, ThinQ Care sends proactive usage, maintenance, and diagnostic alerts to your smartphone, notifying you of potential issues and helping you keep your smart LG appliances running smoothly."
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"feature": "NeveRust Stainless Steel Tub\nUnlike tubs made from porcelain or plastic, the LG NeveRust Stainless Steel Tub avoids the chips and nicks that can snag fabrics and ruin clothing."
},
{
"feature": "True Balance Anti-Vibration System & LoDecibel Quiet Operation\nRun the washer whenever you want - LG 's True Balance Anti-Vibration and LoDecibel systems are designed for quiet operation that keeps even big loads in balance to reduce washer noise and vibration. A must-have for main-floor or second-floor laundry rooms."
},
{
"feature": "Direct Drive Motor 10-Year Limited Warranty\nBacked 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."
},
{
"feature": "ENERGY STAR Certified\nThis LG high efficiency washer uses far less water and energy than a conventional washer for savings that add up with each load. Get additional savings with load-sensing technology that adjusts water levels and wash times or by adding the ColdWash option to almost any cycle."
},
{
"feature": "Closet Depth\nLG closet-depth² washers and dryers are worth showing off, but when space dictates otherwise it’s good to know they’ll easily fit in almost any closet with plenty of room to close the closet door. Install the pair side-by-side, or get a stacking kit and install the dryer over the washer to save even more space."
},
{
"feature": "TubClean System\nWith the LG TubClean system, you don’t have to worry about mold, mildew or musty odors. Simply select the TubClean cycle, add liquid bleach or other cleaner and let the washer do the work to thoroughly clean and dry the tub, door and gaskets. Run it every month or so to help keep your washer—and your laundry—clean and fresh."
},
{
"feature": "LG SideKick Compatible (27\")\nAdd the one-of-a-kind LG SideKick 27\" pedestal washer³ and wash small loads that just can’t wait in the compact washer below while you do a big load up top. Warm and cold settings and 6 cycles let you care for all types of items, from delicates and hand washables to workout wear and baby clothes. Elevate your washer for easier loading and unloading."
}
],
"condition": "New",
"salePrice": 749.99,
"categoryPath": [
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"id": "cat00000",
"name": "Best Buy"
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{
"id": "abcat0900000",
"name": "Appliances"
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{
"id": "abcat0910000",
"name": "Washers & Dryers"
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{
"id": "abcat0910001",
"name": "Washing Machines"
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"id": "abcat0910002",
"name": "Front-Loading Washers"
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"manufacturer": "LG",
"regularPrice": 1049.99,
"shippingCost": "",
"longDescription": "Featuring 6Motion technology, this washer uses up to 6 different wash motions to expertly scrub big loads of jeans or gently clean delicates, based on the cycle you select. Ultra large capacity helps you save time and wash less—save even more with our energy-smart ColdWash option that cleans without compromise. Includes bonus features like built-in intelligence that takes the guesswork out of laundry and LG ThinQ smart technology that keeps you connected while you’re on the move.",
"shortDescription": null,
"onlineAvailability": true,
"inStoreAvailability": true
}
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