Parts for LBR4121JQ1 — Whirlpool Washer

We found 21 parts confirmed to fit the Whirlpool Washer LBR4121JQ1.

Compatibility table

Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.

Common failure areas on this model

The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.

Storage, trim and cosmetic hardware

Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.

Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.

Parts in this group on LBR4121JQ1: WP8546461 (Cam), WP8519200 (Support Rear Panel), WP64067 (Spring Outer Bracket), 3349296 (Rack), 21366 (Washer Spanner Nut).

Water inlet and drainage

Symptom: A washer that won't fill, fills slowly, won't drain, or leaves standing water in the tub.

Check: For fill problems, check the inlet valve's screen filters for sediment. For drain problems, check the pump for a jammed object and confirm the drain hose isn't kinked or looped too high.

Parts in this group on LBR4121JQ1: 285666 (Drain Hose), WP3363394 (Washer Direct Drive Water Pump), 3952164 (Washer Inlet Valve).

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Parts in this group on LBR4121JQ1: 285352 (Oil Seal Kit for Gearcase Input Shaft), 388253A (NEUTRAL DRAIN KIT), 3951311 (Clutch), 62570 (Gear), 63320 (Pinion), 389140 (Washer Drive Block), 350930 (Spray Paint - 12 oz. - White), 72017 (Touch-Up Paint - White).

Drive system (belts, pulleys, motors)

Symptom: A drum or tub that won't turn, a burning-rubber smell, or a loud thump or squeal during a cycle.

Check: With power off, turn the drum or tub by hand -- resistance or grinding points to the motor or a bearing, and a cracked, glazed, or snapped belt is visible once the cabinet is open.

Parts in this group on LBR4121JQ1: WP3349985 (Washer Gear Case Cover Seal), 3360630 (Gear Case), 62621 (Actuator).

Suspension and tub hardware

Symptom: Excessive vibration, banging, or the machine "walking" during the spin cycle.

Check: Check that all leveling legs are actually contacting the floor, then inspect the suspension rods or springs for wear or a broken mount point.

Parts in this group on LBR4121JQ1: 388951 (Basketdriv).

Door, lid switches and latches

Symptom: The washer won't start, or it stops mid-cycle as soon as the lid is opened.

Check: Listen for an audible click when the lid closes. No click, or a visibly cracked plastic tab on the latch, points to this part.

Parts in this group on LBR4121JQ1: WPW10119828 (Lid Hinge Mounting Screw).

Before you buy

Match LBR4121JQ1 exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.

How to confirm this is your model

On most washers, the model and serial plate sits under the lid or on the back panel. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.

Neighbouring Whirlpool Washer models

These model numbers sort next to this one in the catalog and are usually the same product family.

• LBR4121JQ2 — 21 parts
• LBR4132BW0 — 29 parts
• LBR4132HQ0 — 20 parts
• LBR4132HQ1 — 23 parts
• LBR4132JQ0 — 26 parts
• LBR4121JQ0 — 28 parts
• LBR2132BW1 — 32 parts
• LBR2132BW0 — 27 parts
• LBR2121DW0 — 25 parts
• LBR1121EW1 — 22 parts

Other models with this exact parts list

Each model below is confirmed to share the identical compatible-parts list with this one.

• BYCW4271W0 — 18 parts
• CAWB427JQ0 — 36 parts

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.