Injector Database › Recently Serviced › Tohatsu 3G-10310-0
Tohatsu 3G-10310-0 fuel injectorTohatsu 3G-10310-0 fuel injector photo 2Tohatsu 3G-10310-0 fuel injector photo 3Tohatsu 3G-10310-0 fuel injector photo 4
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Tohatsu 3G-10310-0 · Serviced & Flow-Tested

Tohatsu / Nissan TLDI 40-90 HP (Air Injector) Fuel Injector Cleaning & Flow Testing

The Tohatsu 3G-10310-0 is a DFI marine (air-assisted 2-stroke DI, air side) fuel injector used in Tohatsu TLDI 2-stroke direct-injection outboards: MD40B, MD50B, MD70B, MD90B (40-90 HP); also sold under Nissan Marine branding. Air injector for the air-assisted direct injection system — runs alongside a Deka fuel injector on the same powerhead.. We ultrasonic-clean and flow-test injectors like this one in our shop, then send back before-and-after data so you know exactly what you're getting.

ManufacturerTohatsu
Part number3G-10310-0
TypeDFI marine (air-assisted 2-stroke DI, air side)

Our measured results

These are the actual before-and-after numbers from our flow bench for the Tohatsu 3G-10310-0 — not published estimates.

Tested in our shop6 injector(s) @ 50.0 psi
Measured coil (avg)1.95 Ω
10s open flow (avg)64.83 → 79.17 ml (+22.1%)
60s pulsed flow (avg)50.83 → 55.83 ml
Leak test after cleaning6/6 PASS

Also known as / cross-references

The Tohatsu 3G-10310-0 is interchangeable with or cross-references to these part numbers:

30F-10310-03Y7-10310-0 (family)

What vehicles use the Tohatsu 3G-10310-0?

Tohatsu TLDI 2-stroke direct-injection outboards: MD40B, MD50B, MD70B, MD90B (40-90 HP); also sold under Nissan Marine branding. Air injector for the air-assisted direct injection system — runs alongside a Deka fuel injector on the same powerhead.

How we service it

Every injector gets ultrasonic cleaning, backflushing, before-and-after flow testing (static and dynamic), leak testing, spray-pattern inspection, and new O-rings and micro-filter baskets where available — plus a detailed Injector Performance Report. Round-trip USPS shipping is $15 flat.

Frequently asked questions

What vehicles use the Tohatsu 3G-10310-0 injector?
The Tohatsu 3G-10310-0 is used in Tohatsu TLDI 2-stroke direct-injection outboards: MD40B, MD50B, MD70B, MD90B (40-90 HP); also sold under Nissan Marine branding. Air injector for the air-assisted direct injection system — runs alongside a Deka fuel injector on the same powerhead..
Can you clean and test a 3G-10310-0 injector?
Yes. We ultrasonic-clean, backflush, and flow-test the Tohatsu 3G-10310-0 on our bench, including before-and-after open and pulsed flow, leak testing, and spray-pattern inspection, with new O-rings where available.
What did the 3G-10310-0 flow at?
On our bench, 6 3G-10310-0 injectors averaged 64.83 ml open flow before cleaning and 79.17 ml after, tested at 50.0 psi.
How much does it cost?
Standard MPFI top-feed injectors are $30 each; side-feed, GDI, TBI and specialty injectors are $35 each. Round-trip shipping is $15 flat, 4-injector minimum.
How do I send them in?
Start an order on our Get Started page, ship your injectors to our Weymouth, MA shop, and we return them cleaned, tested, and documented.

Send in your 3G-10310-0 injectors

Mail-in cleaning and flow testing with a full before/after report. 4-injector minimum, $15 flat round-trip shipping.

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