OEM Quicksilver MerCruiser Big-Block EC Exhaust Manifold – 8M0099070
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OEM Quicksilver MerCruiser Big-Block EC Exhaust Manifold – 8M0099070
Description
Description
Quicksilver 8M0099070 is the exhaust manifold for specified MerCruiser big-block EC installations using the earlier three-catalyst exhaust design.
Product details
- Manufacturer part number: 8M0099070.
- Replaces 866389T01 and 8M0045258.
- Includes cylinder-head-to-manifold gasket 8M0065690.
- Applications include select 496 MAG/8.1L EC and early 8.2L EC engines.
Fitment and selection
Confirm the exact engine serial number and exhaust layout. Do not substitute by engine displacement alone; later port- and starboard-specific manifold designs differ. This listing is one manifold.
