Genuine Tohatsu 309-70010-3 Integrated Fuel Tank – 2.5 hp & 3.5 hp Outboards

Restore safe, leak-free fuel storage in seconds

This 309-70010-3 integrated fuel tank is the original, factory-moulded replacement for Tohatsu and Nissan 2.5 hp and 3.5 hp two-stroke portables (model years 2002 – present). The tough, UV-stabilised polyethylene shell resists impact, ethanol-blended petrol and salt spray, while the supplied vented screw cap prevents vapour lock and spills when transporting your engine.

Key features

• OEM precision – identical dimensions and moulded fixing bosses for a perfect drop-in fit under the top cowling.
• Approx. 1.4 L capacity —enough for a full day’s pottering without an external tote tank.
• Integrated fuel filter port —accepts the original pick-up tube and gauze strainer (reuse your existing fittings).
• Corrosion-proof construction —one-piece HDPE with embossed level sight strip.
• Genuine part supersessions —replaces 309-70010-1/-2, 309-70010-0 and latest 309700103M numbers.

Compatibility

Fits Tohatsu / Nissan M2.5A/B, M3.5A/B and equivalent Mercury/Mariner 2.5 hp & 3.3 hp models produced by Tohatsu. Not suitable for four-stroke MFS engines (see separate listings).

What’s included

• 1 × Integrated fuel tank (309-70010-3)
• 1 × Vented screw cap with O-ring

Installation notes

Simply remove the recoil starter cover, unbolt the old tank, swap over the fuel cock/strainer assembly and refit—no drilling or trimming required. Allow 10 minutes with basic hand tools.

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