If your dishwasher isn’t cleaning the bottom rack like it used to, the lower spray arm might be the problem. This part spins during the wash cycle, spraying water to clean your dishes. It’s made from tough materials and built to last. If it’s cracked, clogged, or just not working right, replacing it is a quick way to get your dishwasher back in shape.
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Troubleshooting
This part fixes the following symptoms:
Not cleaning dishes properly
This part works with the following products:
Dishwasher.
This part works with the following products:
Maytag, Whirlpool.
Part# W10803178 replaces these:
W10605800
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★★★★★
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Amanda P - September 18, 2023
Verified Purchase
Easy
This was so easy, I had gone without a dishwasher for over a year, couldn’t decide if I should fix it or not, my repair company told me no, but I thought I’d give it a try anyway and orders the part myself and fixed it myself!!!
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Questions and Answers
6 questions answered by our experts.
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Heath
December 30, 2017
Does the arm spray come with the plastic retaining clip to hold it in place? I have the arm but the plastic is broken.
For model number MDB5969SDM1
Hello Heath,
Thanks for your question. Yes, the spray arm comes with the plastic retaining clip.
I hope this helps.
8 people found this helpful.
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Laurel
August 14, 2021
Part 26. We have found yellow plastic track pieces with little tiny stainless roll balls in the bottom off dishwasher. This is the only part we can figures where it came from. Is this possible? Some of our dishes/glasses are not getting cleaned anymore.
For model number MDB8969SDM0
Hello Laurel, Thank you for your inquiry. The stainless ball bearings are most likely from the upper rack slide tracks. We would also recommend checking parts of the dishwasher pump and motor assembly as if the ball bearings have fallen into it, it may have damaged it. Hope this helps.
Hello Maria, Thank you for the question. We have a 1 Year Warranty on the parts we sell. We hope this helps!
https://www.partselect.com/One-Year-Warranty.htm
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Dave
June 27, 2024
Does wpw10491331 washer arm fit above mentioned dishwasher? (Pivot tube?) Is only piece that is damaged.
For model number MDB4949SDZ0
Hello Dave, thank you for reaching out. The part you mentioned does not fit your model. The compatible lower spray arm for your model is part number PS11722921. If you require assistance to place an order, please contact customer service!
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Lynn
June 27, 2025
Does this part come with directions?
The arm came off during a cleaning and I snapped back on and the clips broke off
For model number MDB8959SFZ4
Hi Lynn, thank you for reaching out. No, this part does not come with the installation instructions. The spray arm is mounted on the water supply. You will get four tabs there that are the locking tabs and four pins on the base. You need to place it in with these pins in between the locking tabs. Put it down and turn the base clockwise till it clicks. We hope this information helps!
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Samantha
10 days ago
Other than the accumulator (which ours is fine, clear and no holes) is there another filter that stops particles from winding up in the spray wash arms? We had a problem where the upper one was getting some particles that were clogging the holes, I cleared this out and it seemed to work fine the next wash but then we had an issue once more. Now I'm having trouble with the lower one as well. I had some weird metal screen that I pulled out of the upper one at one point, it was very small pieces of what looked like a type of metal screen that had circle holes in it. I wasn't sure if this was debris or there was a screen somewhere that had become dislodged and is now contributing to the problem. I am just trying to figure out if we can solve this with a replacement part or need a new dishwasher :( It looks brand new, and it's been completely cleaned out (I cleaned out the trap in the bottom and washed the whole bottom out and cleaned all the parts that had come out). Not sure what to do :(
For model number MDB4949SDM2
Hi Samantha, thank you for the question. Based on the description you have provided, the issue seems to be with the chopper, part number PS12578961. You may need to replace it to fix the issue. We hope this solves your problem!
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