*1990-1995 Mercury Mariner 9737A9 Port Piston & Connecting Rod 135-200 HP OEMPart Description: 1990 1995 Mercury Mariner 9737A9 Port Piston & Connecting Rod 135 200 HP OEM Part Number(s): 644 818141 818141A2 Part Details: 3. 49" piston diameter. Model(s): Mercury Condition Description: Used, in good condition Retail Price: $199. 09 Donor Motor: 1995 Mercury Mariner Magnum 200 225 HP EFI. 20" Midsection. Motor developed low compression on one cylinder. Please do your own research. This should fit: This Mercury 9737A9 PISTON

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