Parts for WS850 — InSinkErator Dishwasher

We found 14 parts confirmed to fit the InSinkErator Dishwasher WS850.

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.

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 WS850: 51623 (Insulation), 51609 (Skirt Guard), 51580 (TANK AND FRAME ASSEMBLY (WS850, 1 AND 2) (NOT SHOWN)), 51132 (RECEIVER-MANIFOLD), 51257 (Square Nut), 51121 (Control Arm), 51129 (10tx 48t Gea), 51285 (Casing Back), 51272 (Bowflex Leg Cable), 51219 (Snapper Drive Disc A), WB62X25972 (Range Main Top Assembly).

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 WS850: 51674 (CONTROL PANEL (WS400-3)).

Drive system (belts, pulleys, motors)

Symptom: A dish rack, spray arm, or wash-motor component isn't turning or sliding the way it should.

Check: Check that the part in question turns or slides freely by hand, and look for a cracked, worn, or seized point where it should pivot or roll.

Parts in this group on WS850: 51198 (Pulley), WP4162322 (Dishwasher Single Roller Wheel).

Before you buy

Match WS850 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 dishwashers, the model and serial plate sits on the edge of the door or the tub rim. 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 InSinkErator Dishwasher models

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

• WS850-1 — 19 parts
• WS850-2 — 9 parts
• WS850-3 — 29 parts
• WSSUP — 28 parts
• WSSUP-1 — 8 parts
• WS400-3 — 29 parts
• WS400-2 — 16 parts
• WS400-1 — 34 parts
• WS400 — 33 parts
• WS3000-3 — 32 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.