Superior Millennium Cylinder SL32006Na-A21P

The Superior Air Parts Millennium Cylinder® SL32006NA-A21P is a complete cylinder assembly supplied with valves and a 7.2:1 piston. It is identified by Superior as a narrow-deck, spot-faced cylinder and does not require banana plates.

This assembly is supplied as a cylinder power assembly package and includes:

• SL32006NA-A2 cylinder assembly with valves and piston
• SL75413A 7.2:1 piston
• Single-cylinder gasket set
• Cylinder hardware kit
• Single-cylinder nitride ring set
• Valve cover

Manufacturer part number: SL32006NA-A21P.

Superior lists this part as an FAA-PMA cylinder assembly, PMA No. 173_R2, and as a replacement for OEM part numbers LW12410 and LW12409. The manufacturer’s published eligibility information lists selected Lycoming O-320 configurations, including O-320-A2A, -A2B, -A2C, -A3A, -A3B, -A3C, -E1A and -E2A. Confirm exact engine-model eligibility, installation requirements and regulatory acceptance with the applicable approved maintenance data before installation.