Piston Kit, Cast - Mercury, Mariner 200-225hp Optimax DFI

Cast Piston Kit

Standard Bore is 3.6265"

Round Pocket on Top of Piston

This is a very high quality cast aluminum alloy piston. This kit comes with the piston, Riken rings, wrist pin and pin clips.

These pistons are available in Port and Starboard in sizes STD, .015", .030" and .040" oversize

To order, select the size desired from the dropdown then enter the quantity and click "add to cart".  Most standard and oversize pistons are in stock however some sizes may be on a short backorder from time to time.  Please don't hesitate to contact us for assistance.

Fits

Mercury / Mariner

200hp 2000-2004 3.0L Optimax DFI with Round Pocket in Piston
225hp 1998-2004 3.0L Optimax DFI with Round Pocket in Piston

May fit additional models to those listed above. Please DO NOT order based solely on application info above. You MUST compare the oem number of the part for your engine to those listed below to ensure correct fitment of this part for your application! Failure to order this way will likely lead to the wrong part being ordered!

Replaces: 855353A3, 855353T3, 859296T2, 859296T2, 855354A3, 855354T3, 859297T2, 856936A2, 859444A2, 856938A2, 859446A2, 856935A2, 859443A2, 856937A2, 859445A2