Roborock S8 Parts & Replacement Parts

Name: Roborock S8
Brand: Roborock

Full model name: Roborock S8

Which replacement parts fit the Roborock S8?

CompatRef tracks Roborock S8 compatibility by exact model and component, including filters, mop pads, main brushes and side brushes. Manufacturer exact-model evidence confirms Roborock S8 compatibility with 5-Arm Side Brush (standard) (US market). Roborock S8 has confirmed compatibility with Washable Filter and Sonic Mop Pad (standard), and 1 more part. Compatibility with FlexiArm Design Side Brush is not confirmed; see its evidence below.

Series: S8 — browse this series

Compatibility varies by part. Being in the same series does not mean every part is shared — check each part below individually.

Common compatibility traps:

S8 and S8 Max Ultra look similar, but Washable Filter is compatible for S8 while it's unknown for S8 Max Ultra.
S8 and S8 Max Ultra look similar, but Sonic Mop Pad (standard) is compatible for S8 while it's unknown for S8 Max Ultra.

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Washable Filter

Compatible

Multiple retailers agree

Official store Amazon eBay Walmart

Evidence (2) — verified 2026-09-14

Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing filter.
Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping for filter.

Sonic Mop Pad (standard)

Compatible

Multiple retailers agree

Official store Amazon eBay Walmart

Evidence (2) — verified 2026-09-14

Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing mop cloth pads.
Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping.

Dual Rubber Main Brush

Compatible

Multiple retailers agree

Amazon eBay Walmart

Evidence (2) — verified 2026-09-14

Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing main brush.
Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping for main brush.

5-Arm Side Brush (standard)

Compatible

Manufacturer exact-model confirmed

Verified for US-market models

Official store Amazon eBay Walmart

Evidence (3) — verified 2026-10-16

Replacement Parts Accessories Kit Compatible with Roborock S8 S8+ S8 Pro Ultra — Groups S8/S8+/S8 Pro Ultra as sharing this standard side brush.
Accessories Kit Replacement for Roborock S8 Pro Ultra / S8+ / S8 — Independent listing confirming the same grouping.
Roborock Black Side Brushes Replacement (2 Pieces) — Official Roborock US product page for SKU RR-BS5-Q85MaxPlus-M2 lists "S8" as its own entry in the official product description "Buy Roborock Side Brush*2 for S8/S8+/S8 Pro Ultra/Qrevo/S7 Max Ultra/Q8 Max/Q8 Max+/Q5 Pro/Q5 Pro+/S8 MaxV Ultra/S8 MaxV Ultra(R&D)/S8 Max Ultra/S8 Max Ultra/s8 Max Ultra(R&D)/Qrevo S/Qrevo Master/Q5 Max+/Q5 DuoRoller+/Qrevo Plus/Qrevo Slim and get free shipping". (Source market: US)

FlexiArm Design Side Brush

Unknown

FlexiArm functionality does not establish a distinct replacement brush. Previously not_compatible (manufacturer_confirmed) on the strength of Roborock's support article (https://support.roborock.com/hc/en-us/articles/33954114436761-What-is-the-difference-among-of-S8-Pro-Ultra-S8-Max-Ultra-and-S8-MaxV-Ultra), which only says S8 Max Ultra and S8 MaxV Ultra "are equipped with the FlexiArm Design Side Brush" — a feature difference, not a statement about which replacement brush fits. No official FlexiArm-specific replacement brush product was found, and Roborock's standard side brush (SKU RR-BS5-Q85MaxPlus-M2) names S8 Max Ultra and S8 MaxV Ultra directly. Whether this is a real separate part is under audit.

No evidence stored. Record reviewed 2026-09-24.

Edgewise Mop Cloth (hot-water-wash)

Unknown

Compatibility is not confirmed. The previously cited Roborock comparison article describes robot features, not replacement-part fit. The Edgewise accessory listing names S8 Max Ultra and S8 MaxV Ultra; omission of this model does not establish incompatibility.

No evidence stored. Record reviewed 2026-10-05.

Related models

Other models in the same series — each has its own, independently-verified compatibility.

S8 Max Ultra, S8 MaxV Ultra, S8+, S8 Pro Ultra

Last verified: 2026-10-16