ComfyGo 440-HD PLUS Electric Wheelchair Replacement Parts

Product Overview 

ComfyGo Majestic 440‑HD & 440‑HD PLUS Replacement Parts  OEM Components for Long‑Term Performance

Replacement parts for the ComfyGo Majestic 440‑HD and 440‑HD PLUS series are designed to maintain the chair’s performance, reliability, and day‑to‑day usability. These OEM components support the heavy‑duty frame, dual‑motor drive system, and extended‑range battery options that define the 440‑HD lineup.

Each part is engineered for compatibility with the chair’s reinforced structure, intelligent control system, and modular design, making it easy to replace individual components as needed.

Core Electronic Components

The 440‑HD series uses a modular electronic system that allows for quick swaps and straightforward maintenance.
•Joystick Controllers: Available for both standard and auto‑folding configurations. These controllers feature multi‑speed selection, a battery indicator, and a 360° control interface.
•Li‑ion Batteries: Options include the 12 AH travel‑compliant battery and extended‑range 20 AH and 26 AH batteries. All battery packs are designed for secure mounting and stable power delivery.
•Chargers: Standard 2A chargers support daily charging needs, while 3A fast chargers reduce downtime with quicker recharge cycles.

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The ComfyGo Majestic 440‑HD and 440‑HD PLUS replacement parts collection includes OEM batteries, motors, wheels, joysticks, chargers, seating components, and control accessories designed to maintain the chair’s performance and reliability.

Each part matches the original specifications of the 440‑HD series, supporting its heavy‑duty frame, dual‑motor drive system, and modular electronics. Components are engineered for straightforward installation, with many replacements compatible with the basic toolkit included with the chair.

Drive System: Motors, Wheels, and Braking

The 440‑HD’s dual‑motor system and reinforced wheel assembly are central to its heavy‑duty performance.
•Dual 250W Brushless Motors: Sold individually for the right‑hand or left‑hand side. These motors provide smooth torque delivery and support the chair’s incline and load capabilities.
• Rear Wheels: Available in solid or pneumatic versions. Solid tires offer low maintenance, while air‑filled tires provide a cushioned ride on uneven surfaces.
• Front Casters: Durable 8‑inch solid casters support the chair’s tight turning radius and maneuverability.
•Electromagnetic Brakes: OEM brake modules ensure controlled stopping and automatic lock‑in‑place functionality when the joystick is released.

Seating, Frame, and Comfort Components

These parts support the 440‑HD’s wide‑frame design and adjustable seating system.
•Seat Extension Kits: Designed exclusively for the 440‑HD PLUS, these kits widen the seat by 2.4 inches or 4.0 inches. They bolt directly into the existing frame for a secure fit.
•Replacement Upholstery: Seat and backrest bases are available in multiple colors and materials to refresh the chair’s appearance.
• Anti‑Tippers: Rear stabilizer bars help maintain balance on slopes and uneven surfaces.

Product Highlights

OEM replacement parts for ComfyGo Majestic 440‑HD and 440‑HD PLUS
•     Compatible components for electronics, motors, wheels, seating, and controls
•     Dual 250W motor replacements available for right or left side
•     Battery options include 12 AH travel‑compliant and extended‑range 20/26 AH packs
•     Solid or pneumatic rear wheels and durable 8‑inch front casters
•     Joystick controllers for standard and auto‑folding configurations
•     Wired and Bluetooth caregiver control options
•     Seat extension kits for 440‑HD PLUS (2.4 in or 4.0 in total width increase)
•     Many parts designed for easy at‑home installation with basic tools
•     Serial‑number matching recommended for accurate part selection

Control Accessories

The 440‑HD series supports multiple control options for user and caregiver convenience.
• Caregiver Controllers: Available in wired and Bluetooth versions, allowing an attendant to operate the chair from behind.
• Wireless Remote: Compatible with the 440‑HD PLUS for remote maneuvering and horn activation.
• Joystick Handles: Interchangeable ergonomic handles designed to fit the standard 1/4‑inch stem used across ComfyGo models.

DIY‑Friendly Replacement Design

Many 440‑HD components are designed for straightforward at‑home replacement using the basic toolkit included with the chair.
•  Battery Swaps: External battery packs lift out vertically. Internal battery box access requires removing the bottom screws and reconnecting terminals in their original orientation.
•  Joystick Replacement: Loosen the armrest tension knob, slide out the old unit, and align the guide marks on the cable before reconnecting.
• Wheel and Motor Replacement: Rear wheels are removed with a 17mm socket. The axle key, is a small metal rectangle that must be kept in place to ensure proper wheel engagement.
•  Seat Extensions: Install using a 5mm Allen key while the chair is unfolded for easier access.

Safety and Installation Best Practices

To ensure correct installation and long‑term reliability:
•    Photograph wiring and screw placement before removing parts.
•    Keep track of left‑side and right‑side components, especially motors and wheels.
•    Store spare parts in a dry, temperature‑controlled area.
•    Confirm compatibility using the chair’s serial number, located under the seat or on the rear frame.

Compatibility and Support

All replacement parts listed for the 440‑HD and 440‑HD PLUS are designed to match the original specifications of the chair. For confirmation, users can reference the serial number or consult an authorized dealer for part verification. Providing a photo of the existing component helps ensure an accurate match.

Unique to the 440‑HD PLUS: Seat Extension Kits

The ComfyGo Majestic 440‑HD PLUS is the only model in the 440‑HD series that supports frame‑mounted seat extension kits. These structural accessories widen the seating area by attaching directly to the reinforced PLUS‑series frame.

What the Extension Kits Do?

The standard seat width on the 440‑HD PLUS is approximately 20.5 inches between the armrests.
• The extension kits increase this width by either:
• 1.2 inches per side (2.4 inches total), or
• 2.0 inches per side (4.0 inches total).
•  When installed, the wider configuration provides approximately 24.5 inches of usable space between the armrests.

Appearance and Components
•   Constructed from durable black metal brackets designed to match the 440‑HD PLUS frame.
•     Includes the required mounting hardware for secure installation.
•     Designed to blend seamlessly with the chair’s foldable black metal chassis.