Whirlpool Dishwasher Rinse-Aid Dispenser Cap WP3378134, Replaces 3369155, 3369200, 3369512, 3378134

Whirlpool OEM dishwasher rinse-aid dispenser cap. It covers the rinse-agent port and helps retain rinse aid in the dispenser until use.

Is This the Right Part?

Common Symptoms

• Rinse aid leaking from the dispenser
• Rinse-aid cap missing, loose, or damaged
• Poor drying associated with loss of rinse aid due to an unsecured dispenser opening

Check Before Replacing

• Inspect the dispenser cap for cracks, warping, missing threads, or damage.
• Confirm that the cap is present and seats securely on the rinse-aid dispenser.
• Check whether rinse aid escapes from the dispenser while the dishwasher is idle.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM part
• Dishwasher rinse-aid dispenser cap
• Does not require an O-ring seal

Installation Notes

• Follow the dishwasher owner's manual for installation.
• Install only after confirming the replacement cap matches the appliance model.
• Do not force the cap if it does not seat correctly.

Verified Compatible Models

7DP840CWDB0, 7DP840CWDB1, 7DP840DWGX0, 7DP840SWKX0, 7DP840SWKX1, 7DP840SWSX0, 7DU840CWDB0, 7DU840CWDB1, 7DU840DWGX0, 7DU850SWSQ0, 7DU900PCDB0, 7DU900PCDQ0, 7DU900PCDQ1, 7DU900PCDQ2, 7DU910PFGB0, 7DU912PFGQ0, 7DU920PWKB0, 7DU920PWKQ0, 7DU920PWKS0, 110.723120, 110.773811, 110.773812, 110.773813, 110.773881, 110.773882, 110.773883, 657.15755791, 665.13402K900, 665.13402K901, 665.13409K900, 665.13409K901, 665.13442K900, 665.13442K901, 665.17722K900, 665.1561590, 665.1677192, 665.15891790, 665.15898790, 665.15951793, 665.16669991, 665.16681790, 665.16685790, 665.16717000, 665.16772992, 665.16789300, 665.16791791, 665.16969990, 665.17842401, 66513443K900, 66515994400, CDB4000WQ0, CUD4000JB0, CUD4000JB1, CUD4000JQ0, CUD4000JQ1, DP840DWGX0, DP920QWDB0, DP920QWDB2, DP8500XBN1, DP8500XBN2, DP8500XXN1, DP8700XBN1, DU801DWGX0, DU811DWGQ0, DU840CWDQ0, DU840SWLT0, DU900PCDQ3, DU900PCDQ6, DU915PWPB0, DU915PWPQ0, DU915PWPS0, DU915PWPT0, DU920PFGQ4, DU920QWDB3, DU925QWDB2, DU930QWDB5, DU940QWDZ5, DU945PWSB1, DU945PWSS0, DU948PWSQ0, DU4000XB1, DU5000XW0, DU8000XX0, DU8016XX0, DU8500XX0, DU8530XX1, DU8550XX0, DU8700XY1, DU8960XY1, DU9400XB1, GU980SCGQ0, IPU25360, LUD2100X3, MDB4629AWB1, RUD1000DB1, RUD1000DB3, RUD1000KB0, RUD3000DB3, RUD3006DB0, RUD4500DB3, RUD5750DB4, TUD1000RB2, TUD3000Y4, TUD4700MQ2, TUD5700MBO, TUD6710PT2, TUD6710SQ0, TUD6900PB0, TUD6900PB2, TUD7000Y0, TUD7000Y1, WU3000X0, WU3000X2, WU3000X4, WU3006Y1, WU4300Y0, WU4500B0, WU4500B1, WU5650X0, DP840DWGX1, DP840DWGX2, DP840SWPX0, DP8700XYN0, DP920PFGQ1, DP920PFGQ2, DP920PFGQ3, DP920PFGY0, DP920PFGY1, DP920PFGY2, DP920PFGY3, DP920PFGY4, DP940PWKM0, DP940PWKM1, DP940PWKQ1

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