Assembly Parts List For: 540-1148-SERIES Part Number OEM PN Description In Stock 3183621JP-1 3183621-1 Guide Ring 3183622JP-1 3183622-1 Piston Ring Set 540-1239JP-1 540-1239-1 Gasket 3183621JP-1Guide Ring 3183622JP-1Piston Ring Set 540-1239JP-1Gasket Submit a PMA Development Request