OEM Grade Starboard Piston Kit .020 Oversize Compatible with 1987-2006 Mercury Mariner 135HP 150HP 175HP V6 2-Stroke Outboard Motor 3.145 Bore 765-7441A3 326764

Starboard Side Piston Kit .020 Oversize Compatible with 1987-2006 Mercury Mariner 135HP-175HP V6 2-Stroke Outboard 3.145" Bore
Direct replacement .020 oversize starboard side piston kit for 1987 through 2006 Mercury and Mariner V6 2.0L and 2.4L 2-stroke outboard motors with 3.125" standard bore. Fits 135HP, 150HP, and 175HP V6 models with carbureted and EFI fuel systems. Kit includes cast aluminum piston machined to 3.145" bore (.020 oversize over 3.125" standard), piston ring set, wrist pin, and circlip retainers for a complete single-cylinder rebuild. V6 engines require 3 port + 3 starboard pistons for complete rebuild.

OEM CROSS-REFERENCE PART NUMBERS (STARBOARD SIDE):
• 765-7441A3 (standard reference)
• 326764 (wrist pin)
• 326765 (circlip retainers)

SPECIFICATIONS:
• Type: Starboard Side Piston Kit with Rings
• Size: .020 Oversize
• Bore: 3.145" (.020 oversize over 3.125" standard)
• Engine: V6 2.0L/2.4L 2-Stroke Carbureted / EFI
• Horsepower: 135HP, 150HP, 175HP
• Side: Starboard
• Kit Contents: Piston, Ring Set, Wrist Pin, Circlip Retainers
• Material: Cast Aluminum

APPLICATIONS:
• 135HP V6 2.0L 2-Stroke (1987-2006)
• 150HP V6 2.4L 2-Stroke (1987-2006)
• 175HP V6 2.4L 2-Stroke (1987-2006)

NOTES:
• Port and starboard pistons differ — verify correct side before ordering
• Order 3 port + 3 starboard kits for complete V6 engine rebuild

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