Dishwasher Spray Arm Nut WP99001426

Appliance: Dishwasher · Fits: 9 models · Reference price: $4.74

WP99001426 is a replacement part (dishwasher spray arm nut) for dishwashers. Our fitment data lists 9 models that use it.

When to replace this part

Filtration and spray system

Symptom: Dishes come out with food residue, spots, or a cloudy film, or you notice leftover debris in the tub bottom after a cycle.

Check: Remove and rinse the filter assembly under the tub, and check that the spray arm spins freely and its jets aren't clogged -- these are the first things to check before assuming a pump has failed.

Models that use this part

Other parts for model MDB4800AWA

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

• Dishwasher Wire Harness WP99001904
• Dishwasher High-Limit Thermostat WP99001852
• Dishwasher O-Ring WP912510
• Dishwasher Pump Plate 99001793
• Dishwasher Spray Arm 12001446
• Washer Seal Y757298
• Rinse Arm Assembly WP99002043
• Dishwasher Rinse-Aid Dispenser Cap WP6-903123

Reference price and where to compare

The reference price on file for this part is $4.74. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare WP99001426 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