Tohatsu M8A Parts

[Magnum1500]

I have a 8HP Tohatsu M8A from 1986. I understand that all parts for this model were discontinued over 10 years ago. <br /><br />I need a water pump impeller. Can anyone direct me to an aftermarket supplier, or has anyone had any luck finding another impeller that is similar, and adapting it to fit?

 

[Stevee2]

Re: Tohatsu M8A Parts

Mate its probably going to be cheaper to buy another motor <br /><br />I had an old (early 80's) 9hp, priced up a waterpump for it about $200+ making the motor worthless :\<br /><br />Good luck anywhom and let me know if you find anything!

 

[TOHATSU GURU]

Re: Tohatsu M8A Parts

None...There has always been a rumor that Jabsco has an impeller that will work...But, no one has ever been able to match it up.

 

[manolis]

Re: Tohatsu M8A Parts

I found one that fits the engines socket but with smaller inner diameter and made it a bit wider to fit the engine.

 

[TOHATSU GURU]

Re: Tohatsu M8A Parts

If that was a Jabsco, do you have the part number?

 

[manolis]

Re: Tohatsu M8A Parts

Sorry I dont have it. What I did was comparing the old impeller with new ones till I found the one. Perhaps I got lucky. Next time I remove lower unit I will check it.

 

[phatmanmike]

Re: Tohatsu M8A Parts

i had that same motor but sold it for that same reason. no parts. excellent motor otherwise

 

[TOHATSU GURU]

Re: Tohatsu M8A Parts

Hey Mike,<br /><br />How did you get that rotating diagram of the new Tohatsu 400 hp 4-stroke?

 

[badabing]

Re: Tohatsu M8A Parts

impellers for m8a/b13b m9.8a/b18d, m12a/b18c available now on ebay australia
not cheap
it's really not that hard cutting an impeller if you get the inner diameter right or close enough
impellers are not rocket science

 

[pvanv]

Re: Tohatsu M8A Parts

You do realize you are replying to 5-year-old post; I would hope the OP resolved the issue one way or the other by now.

 

[CoWallSky]

Re: Tohatsu M8A Parts

Yep, This is an old thread but there are a lot of these older (70's-early80's)Nissan/Tohatsu 2-stokes out there. I found this thread on iboats years ago while searching for this impeller for my old Nissan M8A years ago. I've searched the entire planet, (Europe needs them too), but as follow-up, only one location has them.
Australia is it, ebay.au

Search ebay.au
Title: Tohatsu Outboard Water Pump Impeller - M6A/M8A/M9.8A
Seller: AB Outboard Pty Ltd. $66.00 AU
Item number: 140458955831
Item location: Melbourne, VIC, Australia

This fella has a 100% positive rating and responded to my emails immediately. Must have had them made up special. Sold 6 in last 12 months. Will ship to the USA no problem.

Good luck!

 

[Robsta]

Re: Tohatsu M8A Parts

Did you manage to get an impeller for this model yet? I'll have some available soon for around $50 each +$11 postage to the US. They will be made of urethane so you will get a long service life.
Scott.

Hi Scott,

I understand you also manufacture the impeller for the 55A and 55B, if so what's the cost ? Thanks

 

[phph]

Re: Tohatsu M8A Parts

Have been mailing with Tohatsu, Japan about impeller for M8, 9.8A & B18D (9.8hp), and they sent me a scematic on how to modify the impeller for M9.9Ds (P/No.334-65021-0) so it can be used in the above 3 motors.

Haven?t tried it yet, but will let you all know as soon as the shop get the 334-65021-0 i ordered.

Hopefully it will get my old B18D 9.8hp up and running again

 

[RRitt]

Re: Tohatsu M8A Parts

does this mean that tohatsu motors are worthless after about 10 years because you can't fix them?

 

[TOHATSU GURU]

Re: Tohatsu M8A Parts

Since the 8A was last produced in 1984 I'm not sure what you mean. Every outboard manufacturer discontinues parts after a period of years. Some parts, on some models, of some brands may be available for 50 years...Usually because that part was used on a variety of other types of products. For instance, a set of points for a Tohatsu 3.5 produced 25 years ago is no longer available because that's all that it was used on. An Evinrude from the early 60's may still have points available for it because it was also used on a lawn mower or a go cart or some other thing.

 

[RRitt]

Re: Tohatsu M8A Parts

the original post was 2006 saying that parts were discontinued in 1996 or earlier. The post draggged on for several years with nobody even knowing where to get impellers.

Mercury will list a lot of parts as "discontinued" or "obsolete" on 199x engines even though the exact same parts are still being used on current models (with a new part #). I think it depends upon how much the manufacturer views product support as a responsibility versus a profit center. Some manufacturers will discontinue parts at the earliest opportunity in order to sell new engines.

The loser in all of this is someone who owns an older engine that is in good condition but can't be maintained due to parts shortage. I just bought a 2005 tohatsu/nissan 18hp and have noticed that a lot of parts are obsolete and superceded.

I am wondering if tohatsu drops parts off the back end ASAP. Are they like Mercury? Does this mean that in 5 years i will be unable to get even basic maintenance items?

 

[pvanv]

Re: Tohatsu M8A Parts

Firstly, if run in salt, any OB should be considered on its last legs after 10 years. Thing is that the Tohatsu motors tend to keep running long after their design life.
Then too, the 8A was discontinued decades ago, and did not share much with other motors, so when sub-contractors stopped making parts that were specific to it, no more were available.
If a Tohatsu part has a direct interchange to a different model, or has a superceded part number, that info is always updated. That's one of the really good things about Tohatsu.
The OP did not actually know when parts were discontinued, but was posting more than 20 years after the motor was NL made. He was making an assumption.
Try buying a SMEC (single-module engine controller) for a 1988 Dodge Dakota 3.9L. You'll get the same answer. NLA.

 

[TOHATSU GURU]

Re: Tohatsu M8A Parts

"I just bought a 2005 tohatsu/nissan 18hp and have noticed that a lot of parts are obsolete and superceded."

No parts are obsolete and is there something wrong with a manufacturer using superseded numbers?