QSB6.7, QSC, QSL OEM Cummins Turbocharger Oil Feed O-Ring – PART #3037537

Genuine Cummins OEM Turbocharger Oil Feed O-Ring used on all QSB6.7, QSC8.3 and QSL9 engines.The O-Ring seals the Union connector into the turbocharger. #5 in diagram