Genuine Tohatsu Fuel Cock MFS4 MFS5 MFS6 4-Stroke 3H9-70311-0

Genuine Tohatsu fuel cock assembly for the integral fuel-tank system on selected MFS4, MFS5 and MFS6 four-stroke outboards. It provides manual fuel shut-off and is the correct listing for the product SKU 3H9-70311-0.

Key Features

• Genuine Tohatsu OEM fuel valve
• For selected 4HP, 5HP and 6HP four-stroke outboards
• Direct replacement where 3H9-70311-0 is specified
• Manual fuel shut-off for integral-tank systems
• Supplied as one assembly

Technical Specs

Compatibility / Fitment Guide

Used on selected Tohatsu MFS4A2, MFS4B, MFS4C, MFS5A2, MFS5B, MFS5C, MFS6A2, MFS6B and MFS6C outboards. Related Mercury and Mariner models built on the same platform may use the corresponding Quicksilver number. Confirm the original valve, model suffix and parts diagram before ordering.

Part Number Cross Reference

• Tohatsu OEM: 3H9-70311-0
• Tohatsu packaged / service number: 3H9703110M
• Supersedes: 3H9-70031-0
• Related Mercury / Quicksilver reference: 22-878387

Frequently Asked Questions

Does it fit 2.5HP and 3.5HP two-stroke engines?

No. Those engines use a different fuel-cock family, including 309-70011-0. This listing follows SKU 3H9-70311-0 for selected 4HP to 6HP four-stroke models.

Are the hose and clips included?

The listing is for the fuel cock assembly. Order hoses or clips separately unless they are clearly shown as included.

How do I verify fitment?

Confirm part number 3H9-70311-0 in the engine parts diagram or compare it with the number on the original component.