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Mercruiser 8.1L 496 MAG Heat Exchanger 863903 4" x 22" Replacement

Direct replacement for the Mercruiser heat exchanger 863903 (4" diameter version).

Dimensions: 4" diameter x 22" long (20" bundle).

Fits Mercury Mercruiser Chevy 496 Engine.

Note there is also a 3.5" diameter version: MEC 863903 3.5.

This product will normally ship in 7 days.

This is a non-OEM, aftermarket part MEC 863903 4.





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