GL281 D1503 Metal vs Graphite head gasket

[MichaelQ]

I'm replacing the head gasket from my D1503 engine with the metal gasket.
Could someone tell me if I should replace the little blue o-ring which came off the small pipe under the thermostat in the cilinderhead? In the metal head gasket there is a small hole for the pipe but no real place for the o-ring and the original gasket had a large hole which is big enough for the blue o-ring.

Best regards, Michael

 

[Russell King]

Yes you should replace that o-ring.

Most people that have experience with head gasket replacement always recommend that the head gasket is Kubota (OEM) gasket, not an aftermarket gasket.

 

[North Idaho Wolfman]

If the replacement head gasket does not match the OEM head gasket your going to have problems.
Most aftermarket head gaskets are too thick.
And yes you must replace the O-ring for the Oil pipe with the same kind of O-ring, do not go to a black or green O-ring as they are too stiff and will not let the head seal properly.

 

[MichaelQ]

If the replacement head gasket does not match the OEM head gasket your going to have problems.
Most aftermarket head gaskets are too thick.
And yes you must replace the O-ring for the Oil pipe with the same kind of O-ring, do not go to a black or green O-ring as they are too stiff and will not let the head seal properly.

Thanks for your reply,
I got the old gasket off but can't find the code for a replacement gasket. Can I simply measure the old gasket and order the same thickness?

Also I found this thread where you say this: The only gasket they list for your motors application is 16467-03310.
Could it be that the same applies to my GL281 as it's a model after the L2900 with the same engine?

 

[North Idaho Wolfman]

Thanks for your reply,
I got the old gasket off but can't find the code for a replacement gasket. Can I simply measure the old gasket and order the same thickness?

Also I found this thread where you say this: The only gasket they list for your motors application is 16467-03310.
Could it be that the same applies to my GL281 as it's a model after the L2900 with the same engine?

Give me the model and serial numbers,they are stamped on the block facing up just to the outside of the Injection pump.

 

[MichaelQ]

Give me the model and serial numbers,they are stamped on the block facing up just to the outside of the Injection pump.

1.4990
LL

 

[North Idaho Wolfman]

Look here:

Red circle: