PISTON RINGS SET FOR MERCURY MARINER OUTBOARD 40 50 HP 2 STROKE SN : ONO......
Mercury Mariner OEM STD Piston Ring 39- 96170A12 70hp Thru 115hp
BSA Mercury Piston Seal Kit Heavy duty Buffer and O-Ring
STD PISTON RINGS ~ 20HP 25HP Mercury Mariner 2-Stroke Outboard 39-827491A12 (x2)
RING Piston 39-27841 A12 Mercury Mariner
STD PISTON RING SET MERCURY MARINER OUTBOARD 4 5 HP 2 stroke 39-16054
MERCURY/MARINER STANDARD PISTON RING 2.2-2.5-3.3HP 2 STROKE...
BSA Mercury Piston Seal Kit, O-ring, Heavy duty Buffer and a Breech seal
PISTON & PISTON RING SET STD MERCURY MARINER OUTBOARD 4 5 HP 2 stroke 779-9615T
BSA Mercury Piston O Ring
RING Piston 39-11768m Mercury Mariner 40HP 2 stroke Engine STD
Mercury 4.5 / 7.5 /9.8 hp 2 stroke TD Piston Ring 39-21665