| Make | Cessna |
|---|---|
| Model | OAT Outside Air Temperature Indicator |
| Condition | Used |
| Location | Goleta, CA , US |
| Date Listed | Aug 6, 2026 |
| Expires | Sep 5, 2026 |
Description
Cessna Outside Air Temperature (OAT) Indicator
Part Number: C668520-0105 (alt. 500-23 / 500-24)
Serial Number: 11629
Condition: Used – Excellent / Operationally Tested Good with Yellow Tag
Cessna factory OAT gauge manufactured by Instruments Inc. It provides accurate ambient temperature readings in both Celsius and Fahrenheit scales. Removed during an aircraft upgrade and in excellent serviceable condition.
Key Specifications
Range : Dual scale — approximately -60°C to +60°C / -76°F to +140°F
Type : 2" standard round OAT indicator
Condition : Clean black bezel, white pointer, clear yellow markings, smooth operation
Includes : Original yellow service tag with full traceability
Common Applications
Many 1960s–1980s Cessna single and twin-engine piston aircraft using standard 2" OAT instruments
Note : Buyer is responsible for verifying compatibility and proper installation by a qualified A&P mechanic.
Included
Exact OAT Indicator shown in photos
Original yellow service tag / traceability documentation
Not Included : Wiring or mounting hardware
Warranty & Shipping
Guaranteed functional or return (30 days)
Fast, well-packed shipping with tracking included
Please review all photos carefully — the exact unit pictured is the one you will receive.
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