Okay so my Qrevo started making this awful grinding noise around month four, and I genuinely thought the whole unit was dying — turns out it was just the main brush completely matted with dog hair and one very sad broken bristle strip. I spent way too long trying to figure out if I needed a whole new robot or just a part, and Roborock's own replacement page was priced like they knew I was desperate. Asked a couple people in a vacuum subreddit what they used instead, and two people pointed me toward third-party kits that fit the same models. Ordered one, it clicked into place in about ninety seconds, and now I've just got a spare sitting in a drawer for next time. Cheaper fix than I expected, and honestly the "grinding robot of doom" feeling has fully gone away.
Accessories Replacement Kit for Roborock Qrevo Serie - QV 35A/QV 35S, Qrevo S Pro, QR 598/QR 798 Robot Vacuum, 1 Main Brush
Fits multiple Qrevo models and restores suction without the OEM markup.
Check Price on AmazonPros
- Fits several Qrevo model numbers
- Noticeably cheaper than OEM parts
- Easy snap-in installation
- Restores suction to near-new levels
Cons
- Not an official Roborock branded part
- Model compatibility requires double-checking
- Only includes basic accessories, not a full overhaul kit
| This Pick | Typical Buyer Benchmark | |
|---|---|---|
| Rating | 4.7 / 5 | 4.1 / 5 |
| Reviews | 181 | 60 |
| Price | $18.98 | $29.99 |
Buying Guide
- Check your exact Qrevo model number printed on the base station or robot underside before ordering.
- Order a replacement kit as soon as suction starts dropping — waiting only wears the motor harder.
- Snap the new brush and filters in, run a test cleaning cycle, and keep the old parts as spares if usable.
Ready to stop the grinding noise?
Check Price on AmazonFAQs
Will this main brush fit any Qrevo model?
It's designed for the QV 35A/QV 35S, Qrevo S Pro, and QR 598/QR 798 models. Double-check your exact model number on the base station before ordering.
How often should I replace the main brush?
Most households get 3-4 months out of a main brush before bristles wear down and suction drops noticeably, especially with pet hair.
Is this an official Roborock part or third-party?
This is a compatible replacement kit, not sold directly by Roborock, but it's built to the same dimensions and fit as the OEM part.
Does the kit include filters too?
Yes, most kits like this bundle the main brush along with side brushes and filters so you can do a full maintenance refresh in one order.
Will a worn brush actually hurt cleaning performance?
Absolutely. A frayed or matted main brush is one of the top reasons robot vacuums start leaving streaks and missing debris in corners.