Part Adapter

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Cessna · 13 listings from 2 suppliers (FlightHelmet.com, Knots 2U) · $15.00 – $255.00. Prices refresh weekly.

from $15
from $67

Price trend · weekly low by condition

WeekConditionListingsLowAvg
2026-W35used 11$15 $84
2026-W35new 2$67 $79

Price spread · 13 priced listings

$15
$67
$255
median FlightHelmet.com · $15 · used Adapter - .250" G/A Headset Plug to .125" Mini-Jack for PC (click to open at supplier) FlightHelmet.com · $35 · used Adapter Cable- .206 G/A Microphone Plug to .125" Mini-Jack PC Plug" (click to open at supplier) FlightHelmet.com · $54 · used Adapter Cable- 18" Length, Mono U-174 to G/A Dual Plugs (click to open at supplier) FlightHelmet.com · $54 · used Adapter Cable- 18" Length, G/A Dual Plugs to Mono U-174 (click to open at supplier) FlightHelmet.com · $65 · used Adapter Cable - from U-174 to unknown metal locking plug (used/surplus) (click to open at supplier) FlightHelmet.com · $65 · used Adapter Cable to adapt U-174 plug to 3.5mm mini plug (click to open at supplier) Knots 2U · $67 · new Adapter Asembly, Cessna 172 P, AF0555307-1 (click to open at supplier) FlightHelmet.com · $74 · used Adapter Cable, Coiled Extension- 3ft to 6ft, Mono U-174 to G/A Dual Plugs (click to open at supplier) FlightHelmet.com · $75 · used Adapter Cable to adapt single G/A plug to U-174 Single Plug (click to open at supplier) FlightHelmet.com · $85 · used Adapter Cable to adapt to 3.5mm mini plugs (click to open at supplier) Knots 2U · $92 · new Adapter, seat springs, Piper (click to open at supplier) FlightHelmet.com · $146 · used Adapter Cable- 18" Length, Naval U-75/U to G/A Dual Plugs (click to open at supplier) FlightHelmet.com · $255 · used Adapter Cable to connect helmet to two separate radios / intercomms (click to open at supplier) $15 $255

Each dot is one listing (hover for supplier & condition); color = condition.

Price by condition · median

used (11) $65
new (2) $79
Adapter - .250" G/A Headset Plug to .125" Mini-Jack for PC FlightHelmet.com
Adapter - .250" G/A Headset Plug to .125" Mini-Jack for PC
EACC
used
$15.00 view at supplier ↗
Adapter Cable- .206 G/A Microphone Plug to .125" Mini-Jack PC Plug" FlightHelmet.com
Adapter Cable- .206 G/A Microphone Plug to .125" Mini-Jack PC Plug"
EACC
used
$35.00 view at supplier ↗
Adapter Cable- 18" Length, Mono U-174 to G/A Dual Plugs FlightHelmet.com
Adapter Cable- 18" Length, Mono U-174 to G/A Dual Plugs
EACC
used
$54.00 view at supplier ↗
Adapter Cable- 18" Length, G/A Dual Plugs to Mono U-174 FlightHelmet.com
Adapter Cable- 18" Length, G/A Dual Plugs to Mono U-174
EACC
used
$54.00 view at supplier ↗
Adapter Cable - from U-174 to unknown metal locking plug (used/surplus) FlightHelmet.com
Adapter Cable - from U-174 to unknown metal locking plug (used/surplus)
EACC
used
$65.00 view at supplier ↗
Adapter Cable to adapt U-174 plug to 3.5mm mini plug FlightHelmet.com
Adapter Cable to adapt U-174 plug to 3.5mm mini plug
EACC
used
$65.00 view at supplier ↗
Adapter Asembly, Cessna 172 P, AF0555307-1 Knots 2U
Adapter Asembly, Cessna 172 P, AF0555307-1
Engine Baffles
new
$67.15 view at supplier ↗
Adapter Cable, Coiled Extension- 3ft to 6ft, Mono U-174 to G/A Dual Plugs FlightHelmet.com
Adapter Cable, Coiled Extension- 3ft to 6ft, Mono U-174 to G/A Dual Plugs
EACC
used
$74.00 view at supplier ↗
Adapter Cable to adapt single G/A plug to U-174 Single Plug FlightHelmet.com
Adapter Cable to adapt single G/A plug to U-174 Single Plug
EACC
used
$75.00 view at supplier ↗
Adapter Cable to adapt to 3.5mm mini plugs FlightHelmet.com
Adapter Cable to adapt to 3.5mm mini plugs
EACC
used
$85.00 view at supplier ↗
Adapter, seat springs, Piper Knots 2U
Adapter, seat springs, Piper
Pa 28 235
new
$91.66 view at supplier ↗
Adapter Cable- 18" Length, Naval U-75/U to G/A Dual Plugs FlightHelmet.com
Adapter Cable- 18" Length, Naval U-75/U to G/A Dual Plugs
EACC
used
$146.00 view at supplier ↗
Adapter Cable to connect helmet to two separate radios / intercomms FlightHelmet.com
Adapter Cable to connect helmet to two separate radios / intercomms
EACC
used
$255.00 view at supplier ↗