3 Sets Piston Kit STD & Rings Fits Tohatsu Nissan Outboard 70HP 90HP 3B7-00001-2 For Sale - New and Used

Restore optimum cylinder compression, engine power, and combustion efficiency to your 3-cylinder marine engine with this heavy-duty OVERSEE Piston & Ring Kit Set (3 Sets). Precision-engineered as a direct replacement for part number 3B7-00001-2, this standard bore (STD) overhaul kit matches original factory specifications for Tohatsu and Nissan outboard engines.

Product Highlights

• OVERSEE High-Silicon Aluminum Pistons: Manufactured from heat-resistant, high-strength aluminum alloy to ensure low thermal expansion and long service life under heavy marine load.
• Precision Standard Bore Rings: Includes high-tensile, precision-machined piston rings designed to reduce cylinder friction and prevent gas blow-by.
• Complete 3-Cylinder Engine Pack: Contains 3 complete piston assemblies (3 pistons, 3 set piston rings, wrist pins, and circlips) required for a full 3-cylinder powerhead rebuild.
• Cross-Reference Part Numbers: 3B7-00001-2, 3B7-00001-0, 3B7-00001-1, 3B7000012M. Standard bore diameter size (STD).

Guaranteed Fitment & Application

This OVERSEE 3B7-00001-2 Piston Kit Set is compatible with the following marine applications:

• Tohatsu & Nissan Marine Outboards: Fits Tohatsu and Nissan 2-stroke 70HP and 90HP 3-cylinder outboard engines (including M70C, M90A, NS70C, and NS90A models).
• Engine Configuration: Designed for standard cylinder bore (STD) sleeve reconstruction.
• Fitment Tip: Please measure cylinder bore diameter (74mm standard) and verify crankpin clearances prior to installation.

Product Specifications

• Brand: OVERSEE
• Product Type: Outboard Engine Piston & Piston Ring Kit Assembly
• Quantity: Set of 3 Complete Sets (For 3-Cylinder Engine)
• Part Number Replacement: 3B7-00001-2
• Bore Size: Standard Bore (STD)
• Compatible Brand Fitment: Tohatsu / Nissan Outboard Systems
• Engine Horsepower: 70HP / 90HP (2-Stroke 3-Cylinder)
• Condition: Brand New Replacement Kit

Shipping & Installation Notice

To prevent ring fracture, piston crown denting, or surface scratching during transit, every OVERSEE 3B7-00001-2 Piston Kit is vacuum-sealed and securely boxed in protective heavy-duty packaging. Fast domestic and worldwide shipping options are available at checkout!

---