Upper & Lower Gasket Kit 6547863 6547864 for QSF3.8 – Overhaul Grade
Upper & Lower Overhaul Gasket Kit 6547863 6547864, QSF3.8 Engine Fitment — replacement for Cummins QSF3.8-powered excavators, loaders, skid steers, and telehandlers. Typical triggers include coolant-oil mixing, combustion blow-by, and scheduled overhaul intervals Matched upper MLS and lower graphite-composite sets eliminate thickness mismatch across rebuilds Adjacent head bolt stretch and cylinder head warpage warrant inspection at every gasket change Replacement cycle guidance included with shipment to support fleet-level overhaul scheduling.