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Customer Questions and Answers for Drain Hose by Bosch

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Manufacturer Part
4.89 (64)
By: Bosch
Part Number: OEM8406645
Manufacturer Part Number: 00298564

The Drain Hose is an OEM part for Bosch dishwashers, designed to facilitate the efficient and reliable expulsion of wastewater from the appliance to the household drainage system. This component ensures that used water is properly drained out after each wash cycle, preventing water from backing up and causing issues within the dishwasher.  The hose measures 5 feet. This Bosch dishwasher drain hose comes with one O-ring. For the 1-foot drain hose order 00298556.

Causes for replacement may include clogs from food particles or debris, physical damage such as cracks or splits that lead to leaks, or a hose that has become stiff and noncompliant over time.  

Symptoms of a bad Drain Hose include:

  • Water remaining in the bottom of the dishwasher after the cycle has completed, indicating a failure to drain.
  • Leaks under the dishwasher, which may be a sign of a cracked or damaged hose.
  • Poor dishwasher performance or error codes related to drainage problems.

This genuine Bosch OEM replacement part is also compatible with Thermador, Gaggenau, and some Kenmore models.

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Questions & Answers

For Bosch Drain Hose (Part Number: OEM8406645)

1 Answer

Tscdave, the drain hose for the model provided is part number 00298564. In regards to any parts that are not damaged, reuse would be based on preference.

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1 Answer

Hello Ted, I'm sorry but we will need to ask you to please post a new question including the verified model number from the units' I.D. tag since the one provided will not come up for us as a valid model number. Also please be aware that if the part number has ever changed from the original one on the manufacturers' parts list, our compatibility tool will say the part is not compatible. We apologize for this issue and are still working on the solution to this issue. Thank you for your patience and understanding in this matter.

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1 Answer

Nancy, You would turn the water supply off under the kitchen sink, and disconnect the copper water supply line from the water inlet valve in the bottom area in the front of the dishwasher. Then disconnect the drain hose from the plumbing fixtures under the sink, and slide the dishwasher out of the cabinet and carefully lay the dishwasher on it's back, to access and replace the drain hose.

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1 Answer

Hello Richard, You will need to order drain hose 11030046 to extend the drain length. Be aware the drain hose will need to go up to countertop level, (if siphon break is to be installed, this is where it should be), and no loops from the high point to where it connects to the sink/disposer drain, (straight to the sink/disposer drain from the high point in the hose).

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