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RD6 Piston

RD6 Piston

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fordhook
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Would like to know what piston will fit the 2H series RD6 Diesel Engine. Original part number no longer available from Caterpillar.

Piston from 17A series is still available for a cost of approx. $350. Do not know about wrist pin dia. or any other reason that would prevent using in the 2H series engine.
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Sun, Oct 28, 2012 7:54 PM
ErnieinTucson
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Hello fordkhook

I am just finishing RD6, got new old stock piston from Jim Zimmerman, but it has been 2 or more years ago.

Ernieintucson
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Sun, Oct 28, 2012 10:34 PM
tiredIron
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Reply to ErnieinTucson:
Hello fordkhook

I am just finishing RD6, got new old stock piston from Jim Zimmerman, but it has been 2 or more years ago.

Ernieintucson
I'm currently working on a 2H myself. if I can find relative info.. I'll pass it on. I'm just getting started on my." More than a no load miss".#2cyl.cold .😞
I'm new to club. looking forward to R D 6 info. mind if I tag along?

Best to you from " High Desert Country'
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Sun, Oct 28, 2012 11:09 PM
Mike Meyer
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Reply to tiredIron:
I'm currently working on a 2H myself. if I can find relative info.. I'll pass it on. I'm just getting started on my." More than a no load miss".#2cyl.cold .😞
I'm new to club. looking forward to R D 6 info. mind if I tag along?

Best to you from " High Desert Country'
The RD7 and RD8 used the same piston, have you tried Florin Tractor Parts in Sacramento?
regards
Mike
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Mon, Oct 29, 2012 3:00 AM
terrywelch_archive
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Reply to Mike Meyer:
The RD7 and RD8 used the same piston, have you tried Florin Tractor Parts in Sacramento?
regards
Mike
If you cannot find one, I may have one, but may need to use it in a RD6 my son has, If not it can go. What is the bore?
Terry
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Mon, Oct 29, 2012 5:31 AM
Old Magnet
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Reply to terrywelch_archive:
If you cannot find one, I may have one, but may need to use it in a RD6 my son has, If not it can go. What is the bore?
Terry
What is the s/n of the RD6? or even better the part number of your piston if you know it.
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Mon, Oct 29, 2012 6:55 AM
fordhook
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Reply to Old Magnet:
What is the s/n of the RD6? or even better the part number of your piston if you know it.
Old Magnet,

Here is the info you asked for:

Serial # 2H3738W
Piston Number (Inside of Piston) 6B3912
Piston Diameter : 5 3/4"
Wrist Pin Diameter: 2 3/8"
6 Ring Grooves: 4 Compression, 2 Oil
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Mon, Oct 29, 2012 10:41 AM
fordhook
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Reply to fordhook:
Old Magnet,

Here is the info you asked for:

Serial # 2H3738W
Piston Number (Inside of Piston) 6B3912
Piston Diameter : 5 3/4"
Wrist Pin Diameter: 2 3/8"
6 Ring Grooves: 4 Compression, 2 Oil
Mike,

Yes, I have tried Florin Tractor. They were unable to supply the piston.

I really like the people at Florin Tractor. They do an excellent job and have a good supply of parts.
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Mon, Oct 29, 2012 10:51 AM
Mike Meyer
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Reply to fordhook:
Old Magnet,

Here is the info you asked for:

Serial # 2H3738W
Piston Number (Inside of Piston) 6B3912
Piston Diameter : 5 3/4"
Wrist Pin Diameter: 2 3/8"
6 Ring Grooves: 4 Compression, 2 Oil
[quote="fordhook"]Old Magnet,

Here is the info you asked for:

Serial # 2H3738W
Piston Number (Inside of Piston) 6B3912
Piston Diameter : 5 3/4"
Wrist Pin Diameter: 2 3/8"
6 Ring Grooves: 4 Compression, 2 Oil[/quote]

I just looked at my RD6 Parts Number Books 2H1-2H3247, and 2H3248-2H8966, neither book mention a 6B3912 piston in all the different pistons used, and a look on the Parts Machinery Search with that P/N doesn't show a cross number reference, or stock anywhere in the world, which is kind of weird because there were a lot of 3, 4 and 6 cylinder Cat. motors built using that 5 3/4" piston. I'm sure someone schmarter than me will chime in with a number for you, or even some pistons..

I really like Florin and buy a lot of parts through them, I reckon Judy is really on the ball and the rest of the staff I met there a year ago really impressed me.
regards
Mike
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Mon, Oct 29, 2012 12:41 PM
edb
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Reply to Mike Meyer:
[quote="fordhook"]Old Magnet,

Here is the info you asked for:

Serial # 2H3738W
Piston Number (Inside of Piston) 6B3912
Piston Diameter : 5 3/4"
Wrist Pin Diameter: 2 3/8"
6 Ring Grooves: 4 Compression, 2 Oil[/quote]

I just looked at my RD6 Parts Number Books 2H1-2H3247, and 2H3248-2H8966, neither book mention a 6B3912 piston in all the different pistons used, and a look on the Parts Machinery Search with that P/N doesn't show a cross number reference, or stock anywhere in the world, which is kind of weird because there were a lot of 3, 4 and 6 cylinder Cat. motors built using that 5 3/4" piston. I'm sure someone schmarter than me will chime in with a number for you, or even some pistons..

I really like Florin and buy a lot of parts through them, I reckon Judy is really on the ball and the rest of the staff I met there a year ago really impressed me.
regards
Mike
Hi Team,
by way of an explaination :- the number cast into the piston is usually the body casting/forging Part Number. The actual part number can be another Part Number stamped into the top surface of the piston crown, or, indeed it could the casting number on these old pistons as they have no steel inserts for the top rings.
In the parts book the numbers given are for piston assemblies---ie---they have the rings fitted so, are another number again---confusing, yes, it is Yellow Fathers way of doing things.
Sorry, I can not help further.
Cheers,
Eddie B.
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Mon, Oct 29, 2012 3:39 PM
Rome K/G
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Reply to edb:
Hi Team,
by way of an explaination :- the number cast into the piston is usually the body casting/forging Part Number. The actual part number can be another Part Number stamped into the top surface of the piston crown, or, indeed it could the casting number on these old pistons as they have no steel inserts for the top rings.
In the parts book the numbers given are for piston assemblies---ie---they have the rings fitted so, are another number again---confusing, yes, it is Yellow Fathers way of doing things.
Sorry, I can not help further.
Cheers,
Eddie B.
I heard a piston from a D13000 engine will work, not sure about that.
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Mon, Oct 29, 2012 7:02 PM
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