This listing is for New Red Rhino / Mercury & Mariner Cast Piston for Small Bore Bottom Guided Powerheads. This is for use with rod # 638-85321. Original bore size 3.375. These are available in 0.015 (3.390 bore size), & 0.030 (3.405 bore size). This will work with the following models:
- 3 Cyl 70-90 HP models from 1987-1991
- 4 Cyl 100-125 HP models from 1988-1991
NOTE: Please ensure that the machine work for your block is completed before you order oversize pistons.
SHIPPING: Additional shipping fees to Alaska, Hawaii, US Territories, or International Shipping will be calculated after checkout. You will receive an email and a PayPal money request for the additional shipping charges at the email address provided. (Some items are excluded from international shipping)
If you have any questions, please contact us through e-mail at customerservice@marinepartswarehouse.com. Please provide your engine model number to help confirm compatibility.
