Piston Kit, Cast - Mercury 175-225hp 2.4L Chrome Bore

Cast Piston Kit Standard Bore Size (3.375") Fits: Mercury/Mariner 175hp  1978-91  2.4L  Chrome Block STD** 200hp  1978-90  2.4L  Chrome Block STD** 225hp  1980-81  2.4L  Chrome Block STD** **When using this piston in a sleeved block, bore is 3.377" and uses a different ring.  Always email us prior to ordering to specify the number of sleeved holes. To order, select your desired options, 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. Replaces 766-8667T42