The 553-672 is a Piper OEM fuel temperature sender used in aircraft fuel monitoring systems to measure and transmit fuel temperature data to cockpit instrumentation or engine monitoring systems. It provides real-time temperature readings of the fuel within the tank or fuel line, depending on installation configuration.

In Piper aircraft applications, this component is part of the fuel quantity and condition monitoring system, helping ensure safe engine operation by allowing pilots and systems to monitor fuel temperature variations. Fuel temperature is important for assessing fuel density changes, preventing fuel vapor issues, and maintaining optimal engine performance under varying atmospheric conditions.

The sender operates by converting temperature changes into an electrical signal, which is then interpreted by the aircraft’s instrument system or engine monitoring unit. Depending on the aircraft model, it may interface with analog gauges or digital avionics systems.

Manufactured to aviation standards, the 553-672 is typically constructed from corrosion-resistant metal housing with an internal temperature-sensing element, designed for continuous immersion or fuel system exposure. It is engineered to withstand vibration, fuel exposure, and temperature cycling common in aircraft fuel systems.

Because it is part of a safety-related engine monitoring system, accurate operation is important for reliable fuel management and performance awareness.

Key features include:

Piper 553-672 fuel temperature sender (OEM sensor)
Measures fuel temperature in tank or fuel system lines
Provides electrical signal output to cockpit instrumentation
Supports engine performance and fuel condition monitoring
Compatible with analog or digital aircraft systems (model dependent)
Fuel-resistant, corrosion-resistant construction
Designed for continuous exposure to aviation fuel
Provides accurate temperature readings under varying conditions
Vibration and temperature-cycle resistant design
Direct replacement part per Piper IPC specifications