Whirlpool Dishwasher Upper dishrack adjuster, left side WPW10740408, Replaces W10609580, W10740408

Genuine Whirlpool upper dishrack adjuster assembly for the left side of the dishwasher rack. It allows the upper rack height to be changed.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Upper dishrack does not slide in or out properly
• Upper dishrack will not stay level
• Upper dishrack falls out of position
• Upper rack height adjustment does not hold

Check Before Replacing

• Inspect the left-side adjuster for visible cracks, broken pins, looseness, or misalignment.
• Confirm both upper-rack adjusters are set to the same height before concluding the adjuster is defective.
• Check whether the upper rack binds while sliding, which can be consistent with a damaged or misaligned adjuster.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM part
• Left-side upper dishrack adjuster assembly
• Dishwasher application
• Allows upper-rack height adjustment
• Part has been redesigned in a version using metal support pins instead of some older plastic-pin designs

Installation Notes

• Disconnect electrical power to the dishwasher before servicing.
• Verify the dishwasher model number before ordering because compatibility is model-specific.
• Set the left and right rack adjusters evenly after installation.

Verified Compatible Models

MDB8959SFE0, MDB8959SFE1, MDB8959SFE4, MDB8959SFH0, MDB8959SFH1, MDB8959SFH4, MDB8959SFZ0, MDB8959SFZ1, MDB8959SFZ2, MDB8959SFZ3, MDB8959SFZ4, MDB8969SDE0, MDB8969SDE1, MDB8969SDE2, MDB8969SDE3, MDB8969SDH0, MDB8969SDH1, MDB8969SDH2, MDB8969SDH3, MDB8969SDM0, MDB8969SDM1, MDB8969SDM2, MDB8969SDM3, MDB8979SFZ0, MDB8979SFZ2

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