The 492-202 is a Piper OEM part number typically associated with a fuel system valve assembly, commonly identified in aviation parts listings as a valve used within fixed-wing aircraft fuel systems. While exact configuration can vary by aircraft model (such as PA-23, PA-31 Navajo variants, and related Piper fuel system architectures), this part number is generally linked to a fuel crossfeed or fuel system control valve function.

A fuel crossfeed valve is used to allow fuel transfer or controlled fuel routing between left and right fuel systems, ensuring balanced fuel distribution or enabling single-source feeding in multi-engine aircraft. In Piper aircraft fuel system designs, crossfeed capability is critical for engine-out scenarios, fuel imbalance correction, and extended-range operations.

The valve is typically integrated into the aircraft’s fuel manifold system and may be mechanically, electrically, or cable-actuated depending on aircraft model and system revision. In multi-engine Piper aircraft (e.g., Navajo-class systems), the crossfeed valve allows one engine to draw fuel from the opposite tank, improving redundancy and operational flexibility.

Construction is usually of aircraft-grade aluminum or steel alloy, with internal seals designed for aviation fuel compatibility (100LL or Jet-A depending on model). Because it is part of the primary fuel system, it is considered a critical component and is subject to strict maintenance, inspection, and leak-check requirements.

Key features include:

Piper 492-202 fuel system valve assembly (commonly crossfeed-related)
Used in fixed-wing aircraft fuel routing systems
Enables fuel transfer or crossfeed between tanks/lines
Critical for fuel balancing and engine redundancy in multi-engine aircraft
Typically installed within fuel manifold or selector system
Materials: aircraft-grade aluminum or steel with fuel-resistant seals
May be mechanically or electrically actuated depending on installation
Designed for compatibility with avgas (100LL) or turbine fuel systems (model dependent)
Subject to strict leak and functional checks during maintenance
Essential for safe fuel management and engine reliability in flight operations