Are Tohatsu Outboards Any Good, and Does This Oil Filter Fit Yours?
Worth it, if the part number matches your engine
Why the oil filter matters more than the outboard badge
You've got the drain pan under the lower unit, the old filter half spun off, and oil dripping slower than you'd like on a Saturday afternoon. The question that actually matters now isn't whether Tohatsu outboards are any good in some magazine ranking, it's whether the part in your other hand seats right and does its job before the boat goes back on the water. The engine's already bolted to the transom. What's still open is the filter.
How this Tohatsu oil filter actually works, and why it crosses to Yamaha
An oil filter's job is simple and unglamorous: strain metal fines, carbon and combustion byproducts out of the oil before it recirculates through the cam journals and crank bearings. This one is stainless steel, threaded M16 x 1.5, built to seat on the Tohatsu 3R0076150M and 3BJ-07615-0 mounting boss across the 9.9 to 60 HP four-stroke lineup. What's worth noticing is where else that same thread and gasket pattern shows up: Yamaha's 5GH-13440 series, Quicksilver's 8M0154776, Sierra's 18-7911-1. That's not coincidence. Tohatsu has built small four-stroke blocks used under other badges for years, including some of the low-HP engines Yamaha and Mercury sell under their own names, so a filter spec'd for your Tohatsu also fits an F60 or an F9.9 sitting on the next trailer over. Once you know that, the cross-reference numbers on the box stop looking like marketing filler and start looking like an engineering fact: the part is spec'd to a thread and a bypass valve, not to a logo. Check the part number stamped on your old filter against the ones listed here, thread the new one on hand-tight plus a quarter turn, and you've done the one maintenance step that keeps abrasive fines from grinding through your bearings for another season. Skip it, or run one that doesn't seat properly, and the engine doesn't care whose name is on the cowling.
So the real question was never Tohatsu versus Yamaha versus Mercury, it was whether the thread in your hand matches the boss on your block. Check fitment before you check the price, and a fifteen-dollar filter does exactly what a fifty-dollar one does. The badge on the cowling is marketing. The thread pitch is the engineering.
Who this Tohatsu oil filter fits, and who should check first
Worth it if
- your engine's part number matches 3R0076150M, 3BJ-07615-0, or the listed Yamaha, Quicksilver or Sierra cross numbers
- you do your own oil changes and want a low-cost filter that fits without modification
- you've confirmed the M16 x 1.5 thread matches your engine
Skip it if
- your outboard falls outside the 9.9 to 60 HP Tohatsu range or the listed Yamaha models
- you want OEM box packaging for warranty documentation
- you're not sure of your part number and haven't checked it against the old filter yet
Not for engines outside the listed HP range or part numbers, and not for anyone who needs factory-branded packaging for a warranty claim.
Is this Tohatsu outboard oil filter worth it
If your part number matches what's listed here, this is a straightforward yes, cheap insurance for a block you're already committed to. If you're not sure which filter your engine actually takes, or you want factory packaging for warranty paperwork, hold off and confirm the number first. The driveway isn't a showroom, and a wrong part fits nothing.
Once the new filter's threaded on and the drain plug's back in, that's it, the job most owners dread is done for another season. You top off the oil, run it up on the muffs for a few minutes, and watch for a clean seal instead of a slow weep. There's no drama left in it once you've confirmed the part number, just a quiet afternoon and an engine that's protected against the fines that actually wear bearings out. That's the whole payoff: less to think about next time you load the boat.
Amazon shoppers rate it 4.7 out of 5 across 59 ratings. That is their number, not ours.
Before you go
Which is better, Tohatsu or Mercury?
Both build reliable modern four-strokes, but at the low end the comparison gets blurry because Mercury's small four-strokes under 30 HP are built by Tohatsu, so you're often comparing badges more than engineering.
Who makes Tohatsu outboards?
Tohatsu Corporation of Japan, one of the older outboard manufacturers still running, and they also build small four-stroke blocks sold under other brands' badges.
Is Tohatsu as good as Yamaha?
On paper they're competitive in reliability, and the fact that this filter's part number crosses directly to Yamaha's 5GH-13440 series shows the two share more engineering at the low-HP end than the badges suggest.
What are the common problems with Tohatsu outboards?
Less about the engines themselves and more about a thinner dealer and parts network than Yamaha or Mercury, which is exactly why cross-reference aftermarket parts like this filter exist.
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By the numbers
earn an unconditional yes at full priceOut of 102 automotive products we have reviewed. This one is a yes with a condition attached.
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Full spec sheet
| Brand Name | Mablax |
|---|---|
| Manufacturer Part Number | 3R0076150M |
| Unit Count | 1 Count |
| Number of Packs | 1 |
| Number of Items | 1 |
| Included Components | Oil Filter |
| Model Number | 3R0076150M |
| Item Dimensions | 2.9 x 2.9 x 2.9 inches |
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