Part number 4006719-921
4 listings of this part number from 3 US eBay sellers, compared side by side (airframe & controls).
Listings
4
Sellers
3
Lowest asking
$1,795
Median asking
$7,948
Compare listings
Servo Drive SM200 4006719-921 Removed Working
$1,795Used
lakecountryavionics · 100% positive
Servo Drive SM200 4006719-921 w/ January 2026 Inspected 8130
$4,895Used
lakecountryavionics · 100% positive
HONEYWELL SM-200 AUTOPILOT SERVO P/N 4006719-921
$11,000New
avionicsplus · 93.3% positive
Servo Bracket and Servo Drive Honeywell SM-200 4006719-921 SB-201 4005842
$12,000Used
jetairinc · 100% positive
Buying aircraft parts by part number
The manufacturer part number (MPN) is the only reliable way to match a used aviation part to your aircraft — titles and photos vary between sellers, part numbers don't. Before buying, confirm the number against your aircraft's illustrated parts catalog, check whether the part ships with airworthiness paperwork (an FAA 8130-3 form or a maintenance-release tag), and note the difference between OEM parts and FAA-PMA approved replacements. Prices shown are asking prices from US eBay sellers; checkout happens on eBay.