OEM Quicksilver MerCruiser Big-Block EC Exhaust Collector Gasket – 866390
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OEM Quicksilver MerCruiser Big-Block EC Exhaust Collector Gasket – ...
Description
Description
Quicksilver 866390 seals the exhaust collector-to-manifold connection on specified MerCruiser big-block EC engines.
Product details
- Manufacturer part number: 866390.
- Cataloged as the exhaust-collector gasket.
- Used at the collector connection, not the cylinder-head-to-manifold joint.
- Verified in specified 8.2L MAG EC H.O. and 496 MAG EC exhaust assemblies.
Fitment and selection
The referenced 8.2L MAG EC H.O. catalog covers serials 1A350340 and up with its specified collector arrangement. Verify the exact engine serial number and exhaust diagram; do not substitute other elbow or manifold gaskets by appearance.
