Parts for WM3400CW00 — Washer

We found 9 parts confirmed to fit the Washer WM3400CW00.

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 WM3400CW/00: ACZ74070504 (LG Washer Dispenser Drawer Housing), 4861ER2001J (Washer Door Boot Spring Clamp, Outer 4861ER2001J).

Door and drum seals

Symptom: A door boot or gasket that's torn or losing its seal, letting water leak out during the wash or spin cycle.

Check: Check the door boot or gasket for tears, especially near the drain hole at the bottom, and confirm it isn't pinched or twisted where it clamps to the drum.

Parts in this group on WM3400CW/00: MDS62058301 (Washer Rear Tub Gasket), 4036ER4001F (Washer Outer Tub Gasket).

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 WM3400CW/00: MHY62964802 (Washer Suspension Spring).

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 WM3400CW/00: 5220FR2006Z (Washer Water Inlet Valve).

Heat control (thermostats, fuses, heating element)

Symptom: The appliance runs but heats or cools inconsistently, or shuts off partway through a cycle.

Check: With the appliance unplugged, check continuity across the part with a multimeter -- no continuity means it has failed.

Parts in this group on WM3400CW/00: 6322FR2046C (Washer Thermistor).

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 WM3400CW/00: MFG63099101 (LG Washer Door Lock Strike MFG63099101), 4738ER1004B (LG Washer Dispenser Hose).

Before you buy

Match WM3400CW00 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.

Other washer models

These model numbers sort close to this one in the catalog for the same appliance type. The brand is not confirmed to match, but the model number range is close.

• WM3400CW/02 — 9 parts
• WM3431H — 9 parts
• WM3431HS — 9 parts
• WM3431HW/00 — 9 parts
• WM3431HW/01 — 9 parts
• WM3370HWA/01 — 10 parts
• WM3370HWA/00 — 10 parts
• WM3370HVA/00 — 10 parts
• WM3370HRA/00 — 10 parts
• WM3360HWCA — 11 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.