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TDX SI HD Captains Seat

Invacare TDX SI HD Power Chair
Invacare TDX SI HD Power Chair
with Van Seat

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Invacare TDX SI HD
Power Wheelchair

Sorry -This chair is not available at this time.

Need Replacement Parts? call 866-722-4581

Availability: Not Available
Product Code: TDX-SI-HD

Frame Color

User Weight Limit

Transport Tie-Downs

Seat Style

Van Seat Color

Seat Size

Arm Type

Seat Belt


Drive Wheel

Joystick Mount Side

Joystck Mount Type

Front Rigging


Oxygen Holder [Add $112.00]

Wheel Locks [Add $39.00]

Calf Strap [Add $22.00]

Heel Loops w/ Ankle Straps [Add $48.00]

Impact Guards [Add $44.00]

Calf Pads for Center Mount [Add $155.00]

5 Star Service Plan [Add $125.00]

Not Available  
Description Specs

TDX SI HD Power Chair

Heavy Duty with Van Seat

We Apologize:
Invacare has taken this product out of production. We have no tentative dates for it going back into production.

Built off the proven TDX SP platform, it delivers legendary TDX power and performance, making it ideal for meeting the driving needs of consumers up to 450 lb. Center-wheel drive and a narrow footprint provide exceptional indoor maneuverability, while its brightly painted frame and integrated rear suspension combine for a simple yet elegant design. The end result is an eye-catching power wheelchair with a go-anywhere attitude.

The TDX SI HD has 450-lbs weight capacity and a maximum speed of 5 mph.

  • Van Seat
  • Seat Belt
  • 22NF GEL Batteries
  • Foam Filled Flat-Free tires

The Invacare TDX SI HD Power Chair offers realistic benefits for users that require a heavy duty chair:

Available with Van seat up to 24" wide.

MK6i 90 amp controller with SPJ+ joystick is ideal for handling large electrical currents.

SureStep® with Stability Assist climbs 2" with ease while maintaining six wheels on the ground.

Powerful 4-pole, 650 watt motors provide high torque and a 5 MPH top speed while 14" drive wheels provide ideal traction for users up to 450 lb.

Center-wheel drive and narrow base combine for tight turning radius and easy access through doors and hallways.

Rear Suspension:
Integrated rear suspension provides a non-jarring, smooth ride when tackling rough terrain or thresholds.

Removable battery access door with slide-out battery tray makes servicing a snap.

Transport brackets are available for securement of an unoccupied wheelchair in vehicles.

Product Features

  • 450-lb weight capacity
  • Van seat available in several sizes
  • Sure Step Maintains 6 wheels on ground, climbs 2" with ease
  • TrueTrack helps keep the power wheelchair on a true forward path
  • Center Wheel Drive: Provides tight turning radius
  • Quiet Stability lock provides stability with a "damping" effect while driving
  • Available with transport brackets
  • Includes powerful 22NF GEL Batteries
  • MK6i electronics with MK6 TrueTrack controller
  • 8 amp off-board charger

Frame Colors:
TDX SI Colors

Download User Manual:
TDX SI Owner's Manual

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