D902 pistons for bored block

[New31127]

When I look at pistons it says serial numbers for reference but I’m assuming it’s different pistons where do I find the serial number for the engine I need to know what size it needs to be bored too idk if the pistons or 20 or 25 over

 

[New31127]

In other words from what I see you have to order the pistons according to your serial number any help would be much appreciated

 

[lugbolt]

usually on the block under the injection pump. There is a machined surface, under and to the right of the pump, that has the engine number stamped into it. Often it's not easy to find, so look real closely. It should say something like "D902E-28873" or something. Everything after the dash is the serial number.

 

[New31127]

usually on the block under the injection pump. There is a machined surface, under and to the right of the pump, that has the engine number stamped into it. Often it's not easy to find, so look real closely. It should say something like "D902E-28873" or something. Everything after the dash is the serial number.

Would be my luck block is already at the machine shop anyone’s eyes good enough to see the rest of the numbers

 

[North Idaho Wolfman]

I have really good software and a 32" computer monitor, and I can't make it out.

 

[New31127]

Thanks for you help anyway I’m hoping to get the correct size pistons the first go round

 

[TheOldHokie]

Thanks for you help anyway I’m hoping to get the correct size pistons the first go round

Size is something the shop can and should measure.

Dan

 

[chim]

Size is something the shop can and should measure.

Dan

And see the serial number?

 

[TheOldHokie]

And see the serial number?

What does the serial number tell you that size does not? Are there different pistons of the same size?

Dan

 

[chim]

What does the serial number tell you that size does not? Are there different pistons of the same size?

Dan

I don't know, but here's from the OP:
When I look at pistons it says serial numbers for reference but I’m assuming it’s different pistons where do I find the serial number for the engine I need to know what size it needs to be bored too idk if the pistons or 20 or 25 over

 

[TheOldHokie]

I don't know, but here's from the OP:
When I look at pistons it says serial numbers for reference but I’m assuming it’s different pistons where do I find the serial number for the engine I need to know what size it needs to be bored too idk if the pistons or 20 or 25 over

The OPs comment was confusing because its associating oversize with serial number. Messicks part page is evrn more confusing.

The Kubota site is much clearer. There are three serial number breaks for the piston. Within each serial number break you have options for STD, .20, and .25 oversize pistons.

So the OP needs to know the block serial number AND what oversize if any for the block.

Dan

 

[New31127]

The OPs comment was confusing because its associating oversize with serial number. Messicks part page is evrn more confusing.

The Kubota site is much clearer. There are three serial number breaks for the piston. Within each serial number break you have options for STD, .20, and .25 oversize pistons.

So the OP needs to know the block serial number AND what oversize if any for the block.

Dan

The OPs comment was confusing because its associating oversize with serial number. Messicks part page is evrn more confusing.

The Kubota site is much clearer. There are three serial number breaks for the piston. Within each serial number break you have options for STD, .20, and .25 oversize pistons.

So the OP needs to know the block serial number AND what oversize if any for the block.

Dan

Yes messicks is where I got confused so what your saying doesn’t matter the serial number they are all either .20 or .25 over that’s what the machine shop wanted to know so if it need boring they knew what size and the serial numbers and pistons confused me

 

[TheOldHokie]

Yes messicks is where I got confused so what your saying doesn’t matter the serial number they are all either .20 or .25 over that’s what the machine shop wanted to know so if it need boring they knew what size and the serial numbers and pistons confused me

I believe that to be the case.

One thing I have recently learned is Messick's pages are not always the same as Kubota's and sometimes Messick's is just plain wrong.

Dzn

 

[New31127]

I believe that to be the case.

One thing I have recently learned is Messick's pages are not always the same as Kubota's and sometimes Messick's is just plain wrong.

Dzn

I believe that to be the case.

One thing I have recently learned is Messick's pages are not always the same as Kubota's and sometimes Messick's is just plain wrong.

Dzn

Mind posting the link for kubota?

 

[TheOldHokie]

Mind posting the link for kubota?

I mainly use the search by model input box at the bottom of the page

Kubota Tractor OEM Parts, Kubota Tractor

Shop our large selection of Kubota Tractor OEM parts, original equipment manufacturer parts and more online or call at 888-458-2682

shop.kubotausa.com

Dan

 

[Russell King]

Here is another option if the one above gives you any trouble

Kubota Tractor Corporation - Illustrated Parts List

- K-PAD - Parts Lists - Illustrated Parts Lists - diagrams

apps.kubotausa.com

 

[North Idaho Wolfman]

What does the serial number tell you that size does not? Are there different pistons of the same size?

Dan

In this case yes, as there are different style of pistons.