Spring – Valve Cummins Engine ISL 8.9 – Engine QSL 8.9 / QSL 9
Located on the cylinder head, on the valve assembly, it is a valve spring installed in the cylinder head. It is used on both the intake and exhaust sides, depending on the engine configuration. It is an engine valve spring made of high-strength spring steel.
It is equipped with Cummins ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9, and QSL 9 engines.
Before the sale, compatibility must be verified using the ESN (Engine Serial Number), CPL, QuickServe/Cummins Catalog, installed part number, valve rotator configuration, parts manual, and dimensional comparison. The simple “QSL” model is not sufficient to guarantee compatibility with every ESN.