Roomba i3 Parts & Replacement Parts
CompatRef tracks Roomba i3 compatibility by exact model and component, including filters. A manufacturer series-level statement covers iRobot i3 compatibility with High-Efficiency Filter, 3-pack for Roomba e, i & j Series (SKU 4639161). Compatibility with Edge-Sweeping Brush Module (for e/j series, and i-series before July 15, 2024) (SKU 4759005) depends on whether your unit was purchased before 2024-07-15. iRobot's own listing states this side brush module fits i-series robots only if purchased before July 15, 2024. Check your unit's purchase date, not just the model name. Evidence scope: conditional. Compatibility with Unidentified i-series side-brush replacement is not confirmed; see its evidence below.
Compatibility varies by part. Being in the same series does not mean every part is shared — check each part below individually.
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Edge-Sweeping Brush Module (for e/j series, and i-series before July 15, 2024)
Depends on your unitEvidence (1) — verified 2026-09-14
- Edge-Sweeping Brush Module for Roomba e & j Series, and select i Series robots — "i Series robots purchased before July 15, 2024" — explicit date cutoff.
Evidence (1) — verified 2026-09-14
- High-Efficiency Filter, 3-pack for Roomba e, i & j Series — Official filter explicitly covers e, i, and j series.
Official reference information
Battery information from iRobot
iRobot's US support article on Roomba features and compatible parts lists Roomba i3/i3+ among the models with an 1800mAh Li-Ion battery. The article states a battery type for the model line and does not give a battery item number. It does not confirm current availability or a regional or hardware variant, does not establish that a specific replacement battery will fit, and does not cover installation or charging problems.