Part Description: 1977-1993 Mercury Mariner Quicksilver 81097M Piston Ring 2nd OS 67.25 (2) 25-28 HP Part Name: (2) Piston Rings 2nd OS 67.25 Part Number(s): 81097M Model(s): 1977-1993 Mercury Mariner Quicksilver - Genuine Quicksilver Condition Description: New Old Stock Retail Price: Obsolete Part Details: 2 piston rings This should fit: 1977-1993 25-28 HP 1980 7025500 CRANKSHAFT AND PISTON 1980 7025520 CRANKSHAFT AND PISTON 1986 7026226 CRANKSHAFT AND PISTON 1988 7025201NW CRANKSHAFT AND PISTON 1977 7028207 CRANKSHAFT AND PISTON 1977 7028227 CRANKSHAFT AND PISTON 1977 7028507 CRANKSHAFT AND PISTON 1977 7028527 CRANKSHAFT AND PISTON 1977 7028207 CRANKSHAFT AND PISTON 1977 7028227 CRANKSHAFT AND PISTON 1977 7028507 CRANKSHAFT AND PISTON 1977 7028527 CRANKSHAFT AND PISTON 1980 7025200 CRANKSHAFT AND PISTON 1980 7025220 CRANKSHAFT AND PISTON 1980 7025300 CRANKSHAFT AND PISTON 1980 7025320 CRANKSHAFT AND PISTON 1980 7025500 CRANKSHAFT AND PISTON 1980 7025520 CRANKSHAFT AND PISTON 1981 7020201 CRANKSHAFT AND PISTON 1989 7025207PW CRANKSHAFT AND PISTON 1990 7025207SW CRANKSHAFT AND PISTON 1992 7025208AW CRANKSHAFT AND PISTON 1993 7025208BW CRANKSHAFT AND PISTON 1990 7025208SW CRANKSHAFT AND PISTON 1989 7025217PW CRANKSHAFT AND PISTON 1990 7025217SW CRANKSHAFT AND PISTON 1992 7025218AW CRANKSHAFT AND PISTON 1993 7025218BW CRANKSHAFT AND PISTON 1989 7025218PW CRANKSHAFT AND PISTON 1990 7025218SW CRANKSHAFT AND PISTON 1991 7025218YW CRANKSHAFT AND PISTON 1988 7025207NW CRANKSHAFT AND PISTON 1988 7025217NW CRANKSHAFT AND PISTON Our Mission: Our goal is to continue providing outstanding customer service with every order and to get you back on the water fast. Every effort is made to inspect and test every used part and provide an accurate description so that you can buy with confidence. We would be happy to try and answer all questions regarding any of our products. Please check out our online SpeedProMarine store for more performance, obsolete, and hard to find motor boat products. Customer Satisfaction: We are highly committed to ensuring you receive the highest satisfaction with every purchase and hope to earn positive feedback from all of our customers. However, if you have any problems, questions, or concerns about the merchandise you purchased, please contact us. Taxes: MS residents will be charged 7% sales tax. Shipping: We normally ship the day after your payment is received and cleared. If you purchase multiple items, then please allow us to send an invoice to send you a little on shipping. Unless otherwise stated, products will be shipped via FedEx or USPS. Contact seller for any items being shipped anywhere other than the lower 48 states for a shipping price quote. Additional shipping charges will apply to all places outside of the lower 48. Arrangements can be made to pick up item locally. Returns: Returns are allowed only if the item is defective or if we made a mistake in the listing. Returns are allowed for 14 days only (used items) or 30 days (new items). Buyer is responsible for all return shipping costs and for ensuring proper packaging. Buyer must contact us via email before returning any item and obtain an RMA (Return Merchandise Authorization) number. Buyer is responsible for doing his own research to ensure purchase of the correct part. Returns are not allowed due to purchase of incorrect part or change of mind. All returns are subject to a 15% restocking fee unless the item was defective or we made a mistake in the listing. All returned parts found to be tampered with/modified/damaged or incomplete will not be refunded. Payments: Payment is expected within 7 days of purchase. After that, the item will be relisted for sale.