Whirlpool Dishwasher Center Wash Arm Assembly W11814182, Replaces W11174340, W11545334, W11789943

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Poor upper-rack cleaning — dishes coming out with food residue after a full cycle
• Uneven water coverage across the dish load
• Spray arm not rotating correctly during the wash cycle
• Water leaking at the manifold connection point
• Arm repeatedly detaching from the rack
• Weak wash action in part of the dishwasher

Check Before Replacing

• Clean the dishwasher filter and sump — a restricted filter reduces water flow and mimics manifold failure
• Inspect spray arm openings for mineral blockage — clear with a toothpick or fine wire before replacing the assembly
• Confirm the circulation pump is operating normally — a failed pump produces identical symptoms
• Check the upper-rack feed tube for cracks or disconnection — a damaged feed tube prevents water from reaching the centre arm

Part Details

Verified Compatible Models

JDPSS246LM1, KDFE204KBL0, KDFE204KBS0, KDFE204KPS0, KDFE204KWH0, KDFM404KBS0, KDFM404KPS0, KDPM604KBS0, KDPM604KPS0, KDPM704KPS0, KDPM804KBS0, KDPM804KPS0, KDTE204KBL0, KDTE204KBS0, KDTE204KPS0, KDTE204KWH0, KDTM404KBS0, KDTM404KPS0, KDTM604KBS0, KDTM604KPS0, KDTM704KPS0, KDTM804KBS0, KDTM804KPS0, KDTM804KPS1, KDTM804KPS3, MDB4949SKB0, MDB4949SKB1, MDB4949SKW0, MDB4949SKZ0, MDB7959SKZ0, MDB8959SKB0, MDB8959SKK0, MDB8959SKW0, MDB8959SKZ0, MDB9959SKZ0, MDB9979SKZ0

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.