My First Real Tractor!

   / My First Real Tractor!
  • Thread Starter
#71  
55x35x11 is correct. What are the numbers on the new seal? It is possible that the seal manufacturer put the wrong seal in the box. Did the seal you took out have any numbers on it?

EDIT: Haha.. we posted at the same time. I'm sorry for the inconvenience and we will get the correct seal out today.

No worries, glad we figured it out!
 
   / My First Real Tractor! #73  
   / My First Real Tractor! #74  
Yes it is the correct oil. Pretty much anything with 303 in the name is going to be correct. The description says replacement fluid for John Deere 303, J20-A which is what you want.
 
   / My First Real Tractor! #75  
Advance Owns CARQUEST now a days.

Yea and What Aaron (Hoye Tractor) said.
 
   / My First Real Tractor! #77  
I'm slow but do not see where you read John Deere 303 on the description. Maybe 303 just automatically stands for John Deere? I do see where it says not to use in tractors later than 1974.
 
   / My First Real Tractor! #78  
I'm slow but do not see where you read John Deere 303 on the description. Maybe 303 just automatically stands for John Deere? I do see where it says not to use in tractors later than 1974.

The name is "303 fluid" which is short for JD303 fluid. They cannot name their fluid "JD303 fluid" as that name is copyrighted by JD. So they cut it short and call it 303 fluid. They can list JD303 in the spec as its a descriptor but can't name it that. All these 303 fluids are made after the old common JD spec of 303.
 
   / My First Real Tractor! #79  
Yamar's manuals recommend Deere's '303' spec UTF (Universal Tractor Fluid) for their 1970's designed geared tractors. I think for Kustrud's YM1700 it's fine.

Deere's later J20A spec superceded 303. It's mutigrade, so better for cold weather warmup.

I run cheap 303 in my geared YM240 and the backhoe. (and don't run them below 45 degrees). I use Tractor Supply's better Premium UTF in the YM186D where its Powershift, like an automatic transmission, is likely more sensitive to cold weather viscosity. This TSC premium UTF is multigrade (SAE 10W-30) and claimed compliant to J20A.
 
   / My First Real Tractor! #80  
I know you guys are correct but with no mention on the container of transmission/hydraulic fluid and stating not to use on later than 1974 would take it off my list to use. Just hard headed and can't seem to help it.
 

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