Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number
Whirlpool WTW4850BW1 washer

Whirlpool WTW4850BW1 washer Parts

Here are the diagrams and repair parts for Whirlpool WTW4850BW1 washer, as well as links to manuals and error code tables, if available.

By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for WTW4850BW1 Washer

  • Washer Agitator Cap for Whirlpool WTW4850BW1 - Part WPW10074580

    Basket and tub parts diagram

    Inner Cap

    Part #3354733

    Replaced by #WPW10074580

    Info Icon
    Manufacturer substitution
    This part replaces 3354733. Substitute parts can look different from the original.
    In Stock
    $16.55
    11% OFF Phone Price : $18.55Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer Lid Bumper for Whirlpool WTW4850BW1 - Part WP9724509

    Top and cabinet parts diagram

    Washer Lid Bumper

    Part #9724509

    Replaced by #WP9724509

    Info Icon
    Manufacturer substitution
    This part replaces 9724509. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $5.23
    16% OFF Phone Price : $6.23Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer Tub-to-pump Hose for Whirlpool WTW4850BW1 - Part W10899966

    Gearcase, motor and pump parts diagram

    Washer Tub-to-pump Hose

    Part #W10215091

    Replaced by #W10899966

    Info Icon
    Manufacturer substitution
    This part replaces W10215091. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $26.64
    18% OFF Phone Price : $32.64Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer O-ring for Whirlpool WTW4850BW1 - Part WPW10072840

    Basket and tub parts diagram

    Washer Agitator Cap Seal

    Part #W10072840

    Replaced by #WPW10072840

    Info Icon
    Manufacturer substitution
    This part replaces W10072840. Substitute parts can look different from the original.
    In Stock
    $7.72
    11% OFF Phone Price : $8.72Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer Tub Seal Assembly for Whirlpool WTW4850BW1 - Part W10324647

    Basket and tub parts diagram

    Washer Tub Seal

    Part #W10006371

    Replaced by #W10324647

    Info Icon
    Manufacturer substitution
    This part replaces W10006371. Substitute parts can look different from the original.
    In Stock
    $54.27
    10% OFF Phone Price : $60.27Info Icon
    Minus Item
    Qty
    Plus Item
  • Hose Clamp for Whirlpool WTW4850BW1 - Part WP356138

    Top and cabinet parts diagram

    Hose Clamp

    Part #356138

    Replaced by #WP356138

    Info Icon
    Manufacturer substitution
    This part replaces 356138. Substitute parts can look different from the original.
    In Stock
    $36.09
    Minus Item
    Qty
    Plus Item
  • Washer Cycle Selector Switch for Whirlpool WTW4850BW1 - Part WPW10285518

    Controls and water inlet parts diagram

    Washer Cycle Selector Switch

    Part #W10285518

    Replaced by #WPW10285518

    Info Icon
    Manufacturer substitution
    This part replaces W10285518. Substitute parts can look different from the original.
    In Stock
    $73.63
    8% OFF Phone Price : $79.63Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer Agitator Thrust Washer for Whirlpool WTW4850BW1 - Part WP3951608

    Basket and tub parts diagram

    Washer

    Part #3951608

    Replaced by #WP3951608

    Info Icon
    Manufacturer substitution
    This part replaces 3951608. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.48
    12% OFF Phone Price : $8.48Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer Fill Hose Washer, 4-pack for Whirlpool WTW4850BW1 - Part 285448A

    Optional parts (not included) diagram

    Washer Fill Hose Washer, 4-pack

    Part #285448A
    This item is not returnable
    In Stock
    $5.56
    15% OFF Phone Price : $6.56Info Icon
    Minus Item
    Qty
    Plus Item
  • Washer Fill Hose Set for Whirlpool WTW4850BW1 - Part 8212545RP

    Optional parts (not included) diagram

    Washer Fill Hose Set

    In Stock
    $34.87
    15% OFF Phone Price : $40.87Info Icon
    Minus Item
    Qty
    Plus Item

Whirlpool Washer WTW4850BW1 FAQs

The most common Whirlpool washer problems are draining/spinning issues, not filling, and excessive vibration from an unbalanced load or leveling problems. On the Whirlpool WTW4850BW1, many “won’t fill” and “won’t drain/spin” complaints trace back to water supply, drain hose setup, or too much detergent. See the WTW4850BW1 owner's manual for model-specific troubleshooting steps.

Most common issues we see (and what to check first)

  • Washer won’t fill or stops filling: confirm both hot and cold faucets are fully open; check inlet hose kinks and clogged inlet screens.
  • Washer won’t drain or spin (loads still wet): check the drain hose for clogs, and make sure the hose is not pushed too far into the standpipe.
  • Washer shakes, bangs, or walks: level the washer so all feet are firmly on the floor; reduce load size and redistribute items.
  • Poor cleaning or leftover suds: measure detergent carefully; too much detergent can create suds that interfere with normal operation.
  • Tangling or uneven results: load dry items in loose heaps around the basket wall; avoid tightly packing.

Quick symptom-to-cause guide

Symptom Most likely cause Best first step
Won’t fill / wash light on Water supply restricted Check faucets, hose kinks, inlet screens
Won’t drain / spin light on Drain restriction or suds Clear drain path; run Rinse & Spin with no detergent
Loud thumping in spin Unbalanced load Re-load evenly; wash smaller loads
Poor cleaning Overloading or too much detergent Reduce load size; measure detergent

Why it matters

These issues are common because they are often caused by setup and usage factors (leveling, loading, detergent amount, hose routing). Fixing those first prevents unnecessary part replacement and helps the WTW4850BW1 run smoothly.

When a part is a likely suspect

If the basics check out and the problem repeats, these model-matched parts are common next steps:

Last updated: January 2026

Most Whirlpool washing machines, including the Whirlpool WTW4850BW1 top-load washer, last about 10 to 14 years with normal household use and routine care. Consistent maintenance, correct loading, and using the right amount of detergent are the biggest factors that keep the drive system, suspension, and controls running longer (see the WTW4850BW1 owner's manual).

Typical lifespan and what affects it

A washer’s “average lifespan” assumes regular weekly use and no chronic overloads.

  • Usage level: Large families and daily loads shorten lifespan.
  • Overloading: Stresses the gear case, drive belt, and suspension.
  • Too much detergent: Causes excess suds that can interfere with draining and spinning.
  • Installation issues: Poor leveling increases vibration and wear.
  • Water quality: Hard water can increase residue and odor problems.

Quick maintenance checklist (best ROI)

These habits help a top-load Whirlpool washer reach the high end of the lifespan range:

  • Use HE detergent and measure carefully (avoid oversudsing).
  • Keep loads balanced; mix items and avoid washing single heavy pieces alone.
  • Level the washer and re-check if it starts shaking.
  • Run periodic cleaning cycles and wipe the lid and tub ring area.
  • Address early symptoms (noise, burning smell, slow drain) before they become major failures.

Common “wear-out” parts vs. major repairs

What you notice Common cause Typical fix type
Won’t spin or weak agitation Worn belt or drive components Part replacement
Loud grinding or oil leak Gear case wear Major repair
Excessive shaking/banging Suspension wear Part replacement
Lid won’t lock/unlock Lid lock failure Part replacement

If you’re seeing spin or agitation issues, checking the washer drive belt WPW10006384 and the damper assembly W10780045 is a practical starting point for the WTW4850BW1.

Why it matters

Knowing the typical 10 to 14 year lifespan helps you decide whether to repair or replace. If your WTW4850BW1 is near the end of that range and needs a high-cost repair (like a gear case), comparing repair cost to replacement value usually saves time and frustration.

Last updated: January 2026

Yes. A 4.8 cu. ft. washer is considered large capacity because large-capacity washers typically start around 4.5 cu. ft. and up. With a Whirlpool WTW4850BW1 top-load washer, that size is designed to handle bulkier loads while still using low-water, HE-detergent wash action (see the WTW4850BW1 owner's manual).

What “large capacity” means in practical terms

Most shoppers use these capacity ranges:

Washer capacity Common label Best for
3.3 to 4.4 cu. ft. Standard Everyday mixed loads
4.5 to 5.2 cu. ft. Large Comforters, towels, family loads
5.3 cu. ft. and up Extra large Very large households, oversized items

How to get the best results from a 4.8 cu. ft. top-load washer

Because this Whirlpool washer uses lower water levels and adjusts water to the load, loading and detergent choice matter.

  • Use only HE detergent; non-HE can cause oversudsing and longer cycles.
  • Load items evenly around the basket wall; avoid packing clothes down.
  • Wash bulky items (blankets, comforters) one at a time when possible.
  • If loads come out wet, redistribute the load and rerun a spin/drain.
  • Keep the lid closed during operation; the washer pauses at times by design.

Why it matters

A large-capacity tub helps you wash more per load, but performance depends on proper loading and HE detergent. In low-water systems, tightly packed loads can reduce cleaning and contribute to out-of-balance spinning.

Correct installation supports better spinning and less vibration. We recommend confirming floor, spacing, and drain standpipe requirements in the WTW4850BW1 installation guide.

Last updated: January 2026

Most common symptoms to help you fix your washers

Choose a symptom to see related washer repairs.

Main causes: clogged drain hose, house drain clogged, bad drain pump, water-level pressure switch failure, bad control b…

Main causes: broken lid switch or lid lock, bad pressure switch, broken shifter assembly, faulty control system…

Main causes: worn agitator dogs, bad clutch, broken motor coupler, shifter assembly failure, broken door lock, suspensio…

Main causes: water heater failure, bad water temperature switch, faulty control board, bad water valve, faulty water tem…

Main causes: lack of electrical power, wiring failure, bad power cord, electronic control board failure, bad user interf…

Main causes: no water supply, bad water valves, water-level pressure switch failure, control system failure, bad door lo…

Main causes: unbalanced load, loose spanner nut, worn drive block, broken shock absorber or suspension spring, debris in…

Main causes: leaky water inlet valve, faulty water-level pressure switch, bad electronic control board…

Main causes: bad lid switch or door lock, bad timer or electronic control board, wiring failure, bad water inlet valve a…

Effective articles & videos to help repair your washers

Use the advice and tips in these articles and videos to get the most out of your washer.

How auto-load sensing washers work (and when they don't)

How auto-load sensing washers work (and when they don't)

Your washer barely fills or seems stuck in sensing mode? Find out how auto-load sensing and Precise Fill features work, …

How to remove the main control board and user interface from a Maytag Epic Z front-load washer

How to remove the main control board and user interface from a Maytag Epic Z front-load washer

Get step-by-step instructions for removing the main electronic control board and the control panel from a Maytage Epic Z…

Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

Parts & More

Bottom-Mount Refrigerator
Built-In Microwave
Compact Refrigerator
Dishwasher
Front-Engine Lawn Tractor
Garage Door Opener
Generator
Lawn & Garden Engine
Parts