Control Arm 51121

Appliance: Dishwasher · Fits: 16 models · Reference price: $51.88

51121 is a replacement part (control arm) for dishwashers. Our fitment data lists 16 models that use it.

When to replace this part

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.

Models that use this part

Other parts for model WS400-1

If you are repairing that appliance, these are the most model-specific parts on file for the same model.

• Insulation 51623
• Skirt Guard 51609
• CONTROL PANEL (WS400-3) 51674
• TANK AND FRAME ASSEMBLY (WS850, 1 AND 2) (NOT SHOWN) 51580
• BIMETAL ASSEMBLY (BLK) (USED ON WS400-2, 3 AND WS850-2, 3) 51647
• BLOWER ASSEMBLY KIT (INCL. CODES 9 THRU 16) 51512
• BRACKET, OVAL THERMOSTAT 51606
• HOSE-FLEXIBLE KIT(FILL VALVE TO AIR GAP) (INCLS. CODES 2 AND 6) 51482

Reference price and where to compare

The reference price on file for this part is $51.88. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare 51121 listings on Amazon

Before you order

• Match the part number character for character, including dashes and trailing letters; a single different character is usually a different part.
• Confirm your appliance's model number on its data plate and check that it appears in the list above (or use the model lookup tool).
• If a seller offers a substitute number, check that it appears in this page's replacement list or in the manufacturer's documentation.

Model lookup tool