Right Wheel Module (Drive Wheel Assembly)

For iRobot Roomba 500–900, E, I & J Series

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General Description

The right wheel module is a self-contained drive assembly used in multiple generations of iRobot Roomba robotic vacuums. It is responsible for robot mobility, steering, and traction, enabling the vacuum to navigate floors, carpets, and obstacles.

This component integrates the drive motor, gearbox, wheel, and suspension system into a single replaceable unit, making it one of the most common service parts for Roomba robots.

Function & Operation

The right wheel module works in conjunction with the left wheel module to:

• Propel the robot forward and backward
• Enable differential steering (turning and pivoting)
• Maintain traction on various surfaces (tile, hardwood, carpet)
• Help climb thresholds and rugs
• Provide movement feedback to the robot’s control system

Each wheel operates independently and is controlled by the robot’s onboard electronics.

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Key Features

• Complete integrated assembly (motor + gearbox + wheel + suspension)
• OEM or OEM-equivalent replacement design
• Spring-loaded suspension for obstacle climbing
• High-traction rubber tread
• Plug-and-play installation (no programming required)
• Designed for long service life under continuous use

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OEM Part Numbers (by Series)

500 / 600 / 700 Series

• 83301 (older OEM reference)

500–900 Series (Updated Unified Part)

• 4420152 (current OEM replacement)

✔ Newer gray modules replaced earlier colored versions (cosmetic difference only)

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E / I / J Series (Newer Generation)

• 4624873 (right wheel module)

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Technical Specifications

• Type: Right drive wheel module
• Motor: Integrated DC motor
• Drive system: Gear-driven transmission
• Voltage: Internal low-voltage DC (robot battery system)
• Material:
  • Housing: High-impact plastic
  • Tire: Rubber traction tread
• Mounting: Internal chassis mount with screws/latch
• Installation: Moderate (10–30 minutes typical)

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Physical Characteristics (Typical)

• Wheel diameter: ~3 inches
• Module height: ~3–4 inches
• Weight: ~0.5–0.8 lbs
• Color: Gray/black (newer versions), older versions may be blue/purple

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Compatibility

✔ Roomba 500 Series

• 510, 530, 550, 560, 570, 580

✔ Roomba 600 Series

• 610, 620, 630, 650, 660, 670, 675, 680, 690

✔ Roomba 700 Series

• 760, 770, 780, 790

✔ Roomba 800 Series

• 805, 860, 870, 880

✔ Roomba 900 Series

• 960, 964, 965, 966, 980

✔ Same wheel module design used across all these series

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✔ Roomba E / I / J Series (Newer Platform)

• E Series: e5, e6
• I Series: i3, i4, i6, i7, i8
• J Series: j7, j8

⚠️ These use a different part number (4624873) and are NOT interchangeable with 500–900 series modules

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Compatibility Notes (IMPORTANT)

• 500–900 series modules are interchangeable within those series only
• E / I / J series use a newer redesigned module
• Left and right wheel modules are not interchangeable
• Must match:
• Series generation
• Connector type
• Mounting geometry

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Installation Overview

• Location: Bottom of robot (right side)
• Steps:
1. Remove bottom cover
2. Remove brush assembly (if needed)
3. Unscrew/release wheel module
4. Disconnect and replace
5. Reassemble and test

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Common Failure Symptoms

• Robot spins in circles
• One side not moving
• Clicking or grinding noise
• Reduced traction
• “Wheel error” messages (common Roomba diagnostic)

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Maintenance Notes

• Hair and debris buildup can affect performance
• Wheel tread wears over time
• Replacing the module restores full drive functionality

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Summary

The right wheel module for iRobot Roomba 500–900 series (Part #4420152 / 83301) and E/I/J series (Part #4624873) is a critical mobility component that integrates motor, gearing, and suspension into a single replaceable unit. While widely compatible within each generation, cross-generation interchange is not supported, making correct part identification essential.