621-8, Rev M Group list No, 621-8 dtd 7/2/85, or later FAA approved rev Exhaust Stack Assy, R/h

Lycoming Exhaust Stack Assy, R/h 6218,RevMGrouplistNo,6218dtd7285,orlaterFAAapprovedrev

Models

• Model 500-B S/N 893 through 1631 with Avco Lycoming IO-540-B1A5
• Model 500-B1G
• Model 500-E1A5
• or -E1B5 Engines. Rockwell International Model 500-S S/N 1755 through 3151 with Avco Lycoming IO-540-E1A5 or -E1B5 Engines. 500-U S/N 1635 through 1781 with Avco Lycoming IO-540-E1A5 or -E1B5 Engines.

OEM Rockwell P/N 621-8