OEM Grade Port Piston Kit .020 Oversize Compatible with 1998-2012 Mercury Mariner Sea-Doo OptiMax V6 2.5L DFI Outboard 135HP-200HP 3.521 Bore 2720-881054T3 326764

Port Side Piston Kit .020 Oversize Compatible with 1998-2012 Mercury Mariner Sea-Doo OptiMax V6 2.5L DFI Outboard 3.521" Bore
Direct replacement .020 oversize port side piston kit for 1998 through 2012 Mercury and Mariner OptiMax V6 2.5L DFI (Direct Fuel Injection) 2-stroke outboard motors with 3.501" standard bore. Fits 135HP, 150HP, 175HP, and 200HP OptiMax models. Also fits Sea-Doo sport boats equipped with Mercury OptiMax V6. Kit includes cast aluminum piston machined to 3.521" bore (.020 oversize over 3.501" standard), piston ring set, wrist pin, and circlip retainers. V6 engines require 3 port + 3 starboard pistons for complete rebuild.

OEM CROSS-REFERENCE PART NUMBERS (PORT SIDE):
• 2720-881054T3 (standard reference)
• 326764 (wrist pin)
• 326765 (circlip retainers)

SPECIFICATIONS:
• Type: Port Side Piston Kit with Rings
• Size: .020 Oversize
• Bore: 3.521" (.020 oversize over 3.501" standard)
• Engine: V6 2.5L 2-Stroke OptiMax DFI
• Horsepower: 135HP, 150HP, 175HP, 200HP
• Side: Port
• Kit Contents: Piston, Ring Set, Wrist Pin, Circlip Retainers
• Material: Cast Aluminum

APPLICATIONS:
• 135HP OptiMax V6 DFI (2000-2012)
• 150HP OptiMax V6 DFI (1998-2012)
• 175HP OptiMax V6 DFI (1998-2012)
• 200HP OptiMax V6 DFI (1998-2012)
• Sea-Doo Sport Boats with OptiMax V6

⚠️ Verify OEM part number from your original engine before ordering.