S3279-1 – Textron Aviation OEM Oil Temperature and Pressure Indicator
Available now on the Airparts.aero Marketplace.
Overview
The Textron Aviation S3279-1 is a genuine OEM, dual-function oil temperature and pressure indicator, a primary flight instrument engineered for installation in a wide range of Cessna single-engine aircraft. This 2-inch round gauge provides pilots with a continuous, at-a-glance display of the two most critical engine health parameters: lubricating oil pressure and temperature. Manufactured to Textron's exact specifications, this analog instrument combines reliability with clear, intuitive presentation, ensuring the pilot has the vital information needed to maintain safe engine operation and make critical decisions.
*** CORE DEPOSIT $550 ***
Key Features
- Dual-Function Display: Combines two essential engine instruments into a single, space-saving unit. It features two independent needles—one for oil temperature and one for oil pressure—driven by separate, reliable meter movements.
- Clear Analog Readability: The classic analog dial is designed for instant recognition and interpretation. The gauge face includes clearly marked green arcs for normal operating ranges and red lines for minimum and maximum limits, as specified by the engine and airframe manufacturer.
- Internal Lighting: Equipped with internal lighting provisions (typically a 14V or 28V incandescent bulb and post light system) to ensure excellent readability during night flight operations.
- High-Reliability Meter Movements: Utilizes robust, shock-resistant meter movements designed to provide accurate and stable readings despite the vibration and dynamic environment of the cockpit.
- Genuine OEM Part: As a genuine Textron Aviation part, it guarantees perfect compatibility with the aircraft's existing sensors (temperature bulb and pressure transducer/sender), correct range markings for the specific aircraft model, and full airworthiness certification.
Technical Specifications
- Part Number: S3279-1
- Component Type: Dual Oil Temperature / Oil Pressure Indicator
- Size: Standard 2-1/4 inch round instrument case
- Oil Pressure Range: Typically 0 - 120 PSI
- Oil Temperature Range: Typically 100°F - 250°F
- Input Signal: Receives electrical signals from the engine-mounted oil temperature probe and oil pressure sender.
- Lighting: Internally lit via post lights (voltage dependent on aircraft system, e.g., 14V).
- Certification: FAA Production Approval
Aircraft Compatibility
The S3279-1 indicator is the factory-standard instrument on thousands of Cessna piston aircraft. It is imperative to consult the specific aircraft's Illustrated Parts Catalog (IPC) for final verification of applicability for your aircraft's serial number.
- Compatible Aircraft Models (Examples):
- Cessna 172 Skyhawk (various models)
- Cessna 182 Skylane (various models)
- May be applicable to other related Cessna single-engine models.
NOTES
36 MONTHS SHELF LIFE PER CSRS003 PRICE VALID UNTIL STOCK DEPLETED
Applicable Textron Aircraft
- Skyhawk
- Skylane
- Stationair
List not comprehensive, may be applicable on other models.
Applications
The S3279-1 is a primary engine instrument critical for all phases of flight:
- Engine Start & Warm-up: Allows the pilot to monitor the rise in oil pressure and temperature, confirming proper lubrication before applying takeoff power.
- In-Flight Engine Monitoring: Provides continuous, real-time indication of engine health. A drop in oil pressure or a rise in oil temperature is often the first sign of an impending engine problem.
- Troubleshooting & Maintenance: Serves as a key diagnostic tool for mechanics to assess the health of the engine's lubrication system.
- Instrument Panel Restoration & Repair: The primary component used to replace a failed, inaccurate, or sun-damaged original gauge.
Why Choose S3279-1?
Oil pressure and temperature are the two most vital signs of a reciprocating engine's health. The failure to notice a deviation from the normal operating range can lead to catastrophic engine failure. Using a genuine Textron Aviation S3279-1 OEM gauge ensures that the instrument is properly calibrated, that the range markings on its face are correct for your specific aircraft model, and that its internal mechanisms are built to the quality standards required for a primary flight instrument. There is no substitute for the certified accuracy and reliability of a genuine OEM gauge.
Order Your S3279-1 Indicator Now
Ensure you have an accurate and reliable view of your engine's health with a genuine OEM instrument. Visit Airparts.aero to order your Textron Aviation S3279-1 oil temperature and pressure indicator today.
The S3279-1 indicator operates using two independent D'Arsonval meter movements. For the pressure indication, an engine-mounted pressure transducer varies its electrical resistance based on oil pressure. This change in resistance alters the current flowing through a coil in the gauge, causing it to deflect a needle against a calibrated spring. Similarly, the oil temperature probe is a variable resistor (thermistor) whose resistance changes predictably with temperature. The gauge translates these resistance changes into the needle movements that provide the pilot with clear, analog indications. The accuracy of the system is dependent on the precise calibration and pairing of the gauge with the specific part numbers of the engine-mounted senders.
Note: This is a primary flight instrument. Installation must be performed by a certified A&P mechanic or avionics technician. After installation, an engine run-up and functional check must be performed to verify correct indications against the engine's known operating parameters.
