4JH3E Transmission Compatibility

D

DivinaVitae

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Dec 30, 2014
8
Hunter 40 Maryland
I have a Yanmar 4JH3E (European) that needs a marine transmission. In my quest to find and procure the correct gear, I have come across volumes of erroneous/conflicting information regarding "compatible" Kanzaki gears.

I currently have access to a Kanzaki KM35P transmission. However, some specification tables indicate this is a compatible gear; whereas, others indicate that the 4JH3E requires a KM35P-4 transmission. I'm unsure as to whether the "-4" indicates some type of adapter plate or another condition.

If someone here can advise me as to which Kanzaki parallel transmissions are indeed compatible with a 4JH3E; or, provide me with a link to a definitive source of credible information related to Kanzaki and Yanmar compatibilities, I would be most appreciative!

Thank you for your time!

Rick
 
Charles Erwin

Charles Erwin

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Jan 30, 2012
1,140
Nor'Sea 27 "Kiwanda" Portland/ Anacortes
Cant find a KM35P4. There is a KM35P that is a heavy duty model of the KM3P.

The KM3P4 is adapted for both the 3JH3E and 4JH3E.

There is a KM35A and KM35A2 which are the are the heavy duty to match with the 3JH4E and 4JH4E motor.

The mystery here is there is no KM35P4 mentioned. This is a complete guess - but if that designation actually exists it would seem logical that it would be the heavy duty version of the KM3P and the 4 seems to point to a match with the 4JH3E (Euro).

Here is the link to the match ups http://www.yanmarhelp.com/i_box2.htm.

A reasonably competent Yanmar dealer should be able to get these things straight for you or give you a lead to someone at Yanmar US HQ.

Charles

ps Why have you ruled out repairing/using the one that was already in service with your motor?
 
D

DivinaVitae

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Dec 30, 2014
8
Hunter 40 Maryland
Charles Erwin said:
Cant find a KM35P4. There is a KM35P that is a heavy duty model of the KM3P.

The KM3P4 is adapted for both the 3JH3E and 4JH3E.

There is a KM35A and KM35A2 which are the are the heavy duty to match with the 3JH4E and 4JH4E motor.

The mystery here is there is no KM35P4 mentioned. This is a complete guess - but if that designation actually exists it would seem logical that it would be the heavy duty version of the KM3P and the 4 seems to point to a match with the 4JH3E (Euro).

Here is the link to the match ups http://www.yanmarhelp.com/i_box2.htm.

A reasonably competent Yanmar dealer should be able to get these things straight for you or give you a lead to someone at Yanmar US HQ.

Charles

ps Why have you ruled out repairing/using the one that was already in service with your motor?
Click to expand
Good Evening Charles:

Thank you for the reply and the information. The 4JH3E is a bobtail that I purchased to replace a dysfunctional 4JHE in a Hunter 40 that my wife and I are refitting. The transmission connected to the existing 4JHE is a Kanzaki KBW20 (c. 1985). In addition to being 30 years old, I am unsure as to the integrity and suitability of the KBW20 gear for the more powerful 4JH3E.

I agree! I would think that Yanmar USA, or an authorized dealer would be able to provide definitive information. However, my inquiries to Yanmar USA are redirected to Mastry; and, inasmuch as I am located in Montgomery, Alabama, we do not have an authorized and knowledgeable Yanmar marine dealer with whom we can work. Our local (100 mile radius) Yanmar dealers are knowledgeable about tractors and equipment, but not so much regarding marine applications.

Additionally, I have not yet found a Yanmar dealer who will follow-through with researching and fulfilling a rather lengthy parts list for the 4JH3E. Perhaps, it is because there are so few dealers who are authorized to sell Yanmar parts to Alabama. In any event, it has been an interesting study in patience.

Any ideas/thoughts are greatly appreciated.

Thank you again for your reply.

Rick
 
Charles Erwin

Charles Erwin

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Jan 30, 2012
1,140
Nor'Sea 27 "Kiwanda" Portland/ Anacortes
KBW20 would need adapter plate - but will fit up. Check if the KM35P4 is actually a KM3P4.

In all cases as Steve says try Mack Boring come Tuesday. Otherwise there ought to be somebody in the Mobile area who knows the score?



Charles
 
D

DivinaVitae

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Dec 30, 2014
8
Hunter 40 Maryland
Steve Dion said:
Contact Mack Boring for the correct info.
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Good Evening Steve!

Thank you for the reply and the suggestion. I contacted Mack Boring last week via email, but I have not received a response. I understand that they are known for superior customer service; however, inasmuch as I reside in Alabama, they may be preclude from assisting me with Yanmar support.

As Charles has suggested, I will give them a call following the Memorial Day holiday.

Thank you again for your assistance.

Rick
 
D

DivinaVitae

.
Dec 30, 2014
8
Hunter 40 Maryland
Charles Erwin said:
KBW20 would need adapter plate - but will fit up. Check if the KM35P4 is actually a KM3P4.

In all cases as Steve says try Mack Boring come Tuesday. Otherwise there ought to be somebody in the Mobile area who knows the score?



Charles
Click to expand
Hello Charles!

Thank you again for your response. As you and Steve suggest, I will contact Mack Boring via telephone next Tuesday. I recently attempted to contact them via email, but received no reply. I assumed that inasmuch as I do not reside within their service area, they could not contact me.

For edification purposes, below, I have included a small image of the plate that is attached to the other Kanzaki transmission that I can access.

Thank you again for your assistance.

Rick
 

Attachments

woodster

woodster

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Sep 15, 2009
6,243
S2 9.2a Fairhope Al
Rick give Charlie Bell a call in P cola at Bells Marine 850 455 7639 he should know
 
S

Steve Dion

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Dec 2, 1999
15,184
Hunter Vision-36 Rio Vista, CA.
Just a FYI. We have a 3JH2E on our 1994 HV'36. I has a Kanzaki KBW10 with a 2.89 ratio.
 
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