Manifold Long 3964070 + Short 3937477 for Cummins 8.3 8.9 8.3C QSC ISC ISL QSL

Enhance your engine’s performance with this aftermarket Cummins 8.3-8.9L Manifold Set, featuring the long manifold 3964070 and short manifold 3937477. Designed to fit QSC, ISC, ISL, and QSL models, this set ensures reliable airflow and durability. Please note, this is a high-quality aftermarket part, not an OEM component. Perfect for those seeking a cost-effective replacement without compromising on function. Easy to install and built to last under demanding conditions Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.