Admiral Brand W10498900 Dishwasher Middle Spray Arm for Whirlpool, Amana, Maytag
Grey dishwasher middle spray arm replacement part for Whirlpool, Amana, and Maytag appliances.
W10498900 dishwasher middle spray arm replacement part for Whirlpool, Amana, and Maytag appliances.
W10498900 dishwasher middle spray arm dimension diagram showing length, width, and height measurements.
W10498900 dishwasher middle spray arm replacement part shown with installation diagram for Whirlpool and Maytag units.
W10498900 dishwasher middle spray arm features, showing heat-resistant material, connector, and outlet hole details.
List of compatible dishwasher models for W10498900 middle spray arm replacement.
W10498900 dishwasher middle spray arm replacement part shown with common dishwasher symptom troubleshooting guide.
W10498900 dishwasher middle spray arm replacement part shown in a promotional graphic with service icons.
Four-step installation guide for W10498900 dishwasher middle spray arm replacement.
Grey dishwasher middle spray arm replacement part for Whirlpool, Amana, and Maytag appliances.
W10498900 dishwasher middle spray arm replacement part for Whirlpool, Amana, and Maytag appliances.
W10498900 dishwasher middle spray arm dimension diagram showing length, width, and height measurements.
W10498900 dishwasher middle spray arm replacement part shown with installation diagram for Whirlpool and Maytag units.
W10498900 dishwasher middle spray arm features, showing heat-resistant material, connector, and outlet hole details.
List of compatible dishwasher models for W10498900 middle spray arm replacement.
W10498900 dishwasher middle spray arm replacement part shown with common dishwasher symptom troubleshooting guide.
W10498900 dishwasher middle spray arm replacement part shown in a promotional graphic with service icons.
Four-step installation guide for W10498900 dishwasher middle spray arm replacement.

W10498900 Dishwasher Middle Spray Arm for Whirlpool, Amana, Maytag

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W10498900 Dishwasher Middle Spray Arm Assembly

Key Features

  • Precision Spray Pattern: Designed to rotate and deliver a high-pressure water stream upward into the upper rack and downward onto the lower rack for dual-action cleaning.
  • Heat-Stabilized Construction: Manufactured from food-grade, high-durability plastic that resists warping and cracking during high-temperature wash and "Heated Dry" cycles.
  • Integrated Hub Seal: Features a reinforced central mounting point to maintain a tight seal against the water supply manifold, preventing pressure loss.
  • Low-Friction Bearings: Engineered to spin freely even with heavy dish loads, ensuring consistent water distribution across the entire dishwasher width.

Replaces / Cross-Reference Part Numbers

  • WPW10498900
  • AP6022331
  • PS11755664
  • 2312929
  • W10376692
  • W10376693
  • W10342790
  • W10342791
  • W10850340
  • W10342777

Compatibility & Fitment

This middle spray arm (also known as the upper spray arm) attaches to the bottom of the upper dishrack in many Whirlpool-built dishwashers. Key compatible models include:

  • Whirlpool: WDT750SAHZ0, WDT720PADM2, WDTA50SAHZ0, WDT730PAHZ, WDT970SAHZ.
  • Maytag: MDB4949SDH, MDB7949SDM, MDB8959SFZ.
  • Amana: ADB1400PYW, ADB1400PYB, ADB1100AWB.
  • KitchenAid: Fits various KDT and KDF series models utilizing the W10498900 assembly.

When to Replace

  • Dirty Upper Rack Dishes: Cups and bowls in the middle/upper rack remain greasy or have food particles left on them after a cycle.
  • Cracked Housing: The plastic seams of the arm have split, causing water to leak out of the sides rather than the jets, which prevents the arm from spinning.
  • Clogged Nozzles: Calcium, lime, or food debris have permanently blocked the spray holes.
  • Arm Not Spinning: The arm is physically stuck or the mounting hub is worn, causing it to wobble and hit the dishes.
  • Falling Off: The screw or mounting bracket that holds the arm to the rack has failed or stripped.

Installation Tips

  • Safety First: Ensure the dishwasher is off. Pull the upper rack out completely to gain clear access to the bottom of the rack.
  • Removal: Most models use a center mounting screw (which may be plastic). Unthread the screw by hand or with a nut driver to release the old arm.
  • Manifold Check: Inspect the water delivery tube (manifold) at the back of the rack for cracks or clogs before attaching the new arm.
  • Orientation: Ensure the spray jets are facing the correct direction (usually the larger jets face upward toward the cups) before tightening the center screw.
  • Test Spin: Spin the arm by hand after installation to ensure it does not strike any part of the rack or the water supply tube.

Compatible Models

Locate the model number of your appliance or equipment on the manufacturer's label and use it to check compatibility before ordering

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FAQs

This middle spray arm is used on select Whirlpool, Amana, Maytag, and Kenmore dishwashers. Model references shown for this part include WDTA50SAHZ0, WDT750SAHZ0, WDT720PADM2, WDT730PAHZ0, and WDT970SAHZ0. Because dishwasher parts can vary by full model and revision, the safest match is to confirm your dishwasher’s exact model number and verify it uses part W10498900 or WPW10498900.
This part cross-references W10498900, WPW10498900, AP6022331, 2312929, PS11755664, and W10448645. If your original middle or center wash arm is listed under any of those numbers, this is the correct replacement family to check against your model.
Typical symptoms include poor cleaning on the middle rack, food residue left on cups or bowls, weak or uneven spray, visible cracks or splits in the arm, melted or warped plastic, or spray holes clogged beyond cleaning. You may also notice the arm no longer spins freely or falls out of position during the wash cycle.
This is the middle spray arm, also called the center spray arm or center wash arm. It is not the lower wash arm at the bottom of the tub. It mounts under or around the middle rack area, depending on the dishwasher design.
Installation is usually straightforward and often takes about 10 to 20 minutes. Many dishwashers allow the middle spray arm to unclip, twist off, or release from its support without major disassembly. Basic tools may include a screwdriver or small pliers, though some models require no tools at all. Remove the dish rack as needed, detach the old arm, inspect the mount for damage or debris, and install the new arm so it spins freely.
Before replacing it, inspect the spray arm holes for mineral buildup or food blockage, check that the arm turns freely, and make sure the feed tube or manifold that supplies water to the middle arm is properly aligned. Also examine the rack adjuster or support pieces near the arm, because a misaligned rack can keep the spray arm from seating or spinning correctly. If wash performance is still poor after replacement, check the filters, circulation path, and water pressure inside the dishwasher.