Condition: New other (see details)

Condition Description: New old stock

This is a new old stock (NOS) Lycoming-style intake manifold plenum, part number 633945 REV. B. This cast aluminum induction housing is used on Lycoming O-540 and IO-540 engines in a range of general aviation aircraft, including Piper Cherokee Six, Saratoga, and certain Cessna models. The unit features a 5-port design and central carb/injection mount and is in pristine condition with no signs of installation or wear.

Ideal for overhauls, engine rebuilds, or parts inventory for maintenance shops, this plenum is a genuine aviation casting with Lycoming-style markings and is ready for certification or installation depending on your needs.

Key Features:

• Casting No: 633945 REV. B
• Compatible with Lycoming O-540 / IO-540 series engines
• 5-port intake plenum configuration
• New old stock condition – never installed
• OEM-grade casting, likely Lycoming-manufactured

Disclaimer: Buyer is responsible for determining airworthiness and verifying compatibility with specific engine model. No FAA 8130 tag included unless otherwise stated.