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Discussion Starter #1
Hey, I'm new to this site, but I was wondering if anyone might know where to find a crank shaft for the Yanmar in my Gator?

Engine Family: SYD739U6D2RA
Serial #: CH3007D000870
Model #: 3007D003
659 ccm
 

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Have you tried the John Deere dealer? What model Gator is it?
 

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I was trying to avoid the price gouging.

Should I just go there to find the part number?

It doesn't seem like any place has a listing for these engines.

It's a 6x4 Diesel Gator I got from craigslist that didn't come with a user manual.
 

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So your Gator has the Yanmar 3TN66C-EJUV engine in it. The Deere part number for your crankshaft is AM875020 @ about $1000 from what I can see on-line.

All you can do is serach for it. Maybe fond one on Ebay or used somewhere....
 

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So your Gator has the Yanmar 3TN66C-EJUV engine in it. The Deere part number for your crankshaft is AM875020 @ about $1000 from what I can see on-line.

All you can do is serach for it. Maybe fond one on Ebay or used somewhere....

Thanks, JimR

How did you find all that? I have been searching for months online.
 

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I did a search on your Gator model number and found a couple of replacement engines listed for it. Copied the engine model number and then did a search on "3TN66C-EJUV crankshaft" and came up with several links to the Deere parts listing for it.
 

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Why do people assume because a dealer sell's it it's "price gouging"?

Highstreet, look here, its free to register ans its the same basic system the dealers use: www.jdparts.com
 

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Why do people assume because a dealer sell's it it's "price gouging"?

Highstreet, look here, its free to register ans its the same basic system the dealers use: www.jdparts.com
He's probably been hanging out on TBN
 

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Discussion Starter #10
Highstreet,

The Yanmar in the Gator is very similar to the 3TN66-UJ engine used in the 332 tractors, apart from some of the accessories. Here is a manual excerpt that might be useful...
View attachment 42506

...and here is an excerpt from the Gator TM1518 manual if it is not too large to attach...
View attachment 42511

Hope these can be of some help.

Chuck
Thanks!
Yea, I just found a guy on eBay selling the short block from a 332 and he says he may be able to pull a crank from another he has.
 

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Why do people assume because a dealer sell's it it's "price gouging"?

Highstreet, look here, its free to register ans its the same basic system the dealers use: www.jdparts.com
Thanks, Kenny. I'll check it out.

When it is listed for $1000 and I have people offering it to me for $300 on eBay, that is quite a markup. JD also doesn't allow used parts dealers to carry replacements parts in order to restrict supply.
 

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Thanks, Kenny. I'll check it out.

When it is listed for $1000 and I have people offering it to me for $300 on eBay, that is quite a markup. JD also doesn't allow used parts dealers to carry replacements parts in order to restrict supply.
Are the Ebay ones new or used?
 

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Why do people assume because a dealer sell's it it's "price gouging"?
A few years ago I rebuilt an Isuzu diesel engine in an Onan generator. I found that the same model engine was used in several machines including a Hitachi excavator that is sold under the John Deere name. I priced parts through several different brands, Deere beat everyone else's prices.
 

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A few years ago I rebuilt an Isuzu diesel engine in an Onan generator. I found that the same model engine was used in several machines including a Hitachi excavator that is sold under the John Deere name. I priced parts through several different brands, Deere beat everyone else's prices.
Exactly my point, one shouldn't automatically assume.
 

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Discussion Starter #16
You may be right on those prices.

Hey, does anyone know of an online/printable Service or Tech Manual for this Gator Crank? Is the best way to just grab a used one off ebay, or is there an online version?
 

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Highstreet,

I am a little puzzled by your last post above...in my post #7 to this thread in the first page I attached the complete engine section from the diesel Gator. Did you open it up and look at it? (it is a PDF document...) As further information/backup I also included theCTM3 manual for the similar 322 engine...

The specs on the crank are listed early in the document as:

Crankshaft and Main Bearings:
Main Bearing Cap Screw Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . 54 N•m (40 lb-ft) Connecting Rod Journal OD Standard . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.97 - 35.98 mm (1.4161 - 1.4165 in.)
Connecting Rod Journal OD Wear Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . 35.92 mm (1.414 in.) Crankshaft Maximum Bend . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02 mm
(0.0007 in.) Connecting Rod Journal OD Standard . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . 35.97 - 35.98 mm (1.4161 - 1.4165 in.) Connecting Rod Journal OD Wear Limit . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.92 mm (1.414
in.) Main Bearing Journal OD Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 39.97 - 39.98 mm (1.5736 - 1.5740 in.) Main Bearing Journal OD Wear Limit . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39.92 mm (1.572 in.)
Main Bearing ID Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . 0.15 mm (0.0059 in.) Main Bearing ID Standard . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40.00 - 40.042 mm (1.575 -
1.577 in.) Main Bearing ID Wear Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . 40.07 mm (1.578 in.)

Sorry for the formatting above -- that is why you should open the PDF. Further in the document is information on bearing installation (along about page 199 or so...)

Let me know if you are having trouble downloading the manual excerpt.

Chuck
 
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