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TDX SI Power Wheelchair
Invacare has entered into a consent decree of injunction with the FDA that may limit our ability to provide this product.

For additional information US
For additional information Canada

TDXSI named for its superior integration of key rehab features.


Product ID: TDXSI
HCPCS Code: K0848**
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Starting At...$5,970.00*

Price Sheet(s)






Product Comparison
Additional Documents

Named for its Superior Integration of key Rehab features, the TDX SI has a new suspension system called Simplified SureStep with Stability Assist, 2 Pole Motors with a top speed of 5 mph, 22NF batteries, and a compact vent option. The TDX SI is coded as a Medicare Group 3 power wheelchair and is offered with Rehab and Captains seating as well as Formula CG powered Tilt. The TDX SI is designed to accommodate less involved injuries and disabilities.



  • 2 Pole Motors
  • Simplified SureStep with Stability Assist
  • MK6i Electronics with MK660 Controller
  • 300 lb Weight Capacity



  • Seat Width:12"-22" Rehab Seat
    16",18",20",22" Van Semi Recline with Solid Base

    Seat Depth:12" - 22" Rehab Seat
    16"-18" Van Seat on 16" or 18" wide
    18"-20" Van Seat on 20" or 22" wide

    Back Height:12" - 24" Rehab Seat
    38" Van Seat w/o headrest
    45" Van Seat w/headrest

    Seat To Floor Height:On ADJASBA seat:
    Low 16.5" @ 0 degrees
    Medium 18.5" @ 0 degrees
    Tall 20.5" @ 0 degrees.
    Height at 5 degrees - add o.5" to each
    VAN seat to floor height: 21" from top of seat to floor.

    Overall Width:24" with 22TRY Battery Tray

    Overall Length:35.25" (without front riggings)

    Overall Height:35.5" - 39.5" Rehab Seat
    38" w/o Headrest SEMIRB
    45" w/Headrest SEMIRB

    Wheel and Caster Size:Front and rear casters 6" x 2"; Drive Wheel (flat-free) 14" x 3"

    Speed:5 MPH
    Electrical:MK660/SPJ+
    Product Weight:264 lbs. (with batteries), 166 lbs. (without batteries)
    Van Seat - 179 lbs without batteries and 277 lbs. with batteries

    Battery:22NF (2 each)

    Warranty:Base Frame: 5 years
    Seat Frame: 3 years
    Electrical Components: 1 year
    Motors: 1 year
    Batteries: 6 months
    Remaining Components(except upholstered materials, padded materials, tires/wheels) 1 year.


    NOTE: For more detail please refer to the full specifications brochure link above, or call Customer Service at (800) 333-6900. All specifications, prices, and product configurations are subject to change without notification. Accessories and seating products shown in the photographs are not necessarily included in the base price of wheelchair. Please refer to current price lists located at www.invacare.com.


    * MSRP - Manufacturer's Suggested Retail Price does not include optional equipment and accessories that may be available for this product.

    ** This information is not intended to be, nor should it be considered billing or legal advice. Providers are responsible for determining the appropriate billing codes when submitting claims to the Medicare Program and should consult an attorney or other advisor to discuss specific situations in further detail.

    Documents are available for download in PDF format. Download Adobe Acrobat PDF reader.