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| Bought a used tractor and found that someone has pur a valve coming off the water pump for heater hose. I would assume this is to turn heater hose flow on or off. So, I've not seen this before. I've had a 4640 for the last 5 years and a took a look at it.. It has one too. The kicker, I went and looked at the ol 4020... It has one too. I did not put the valve on any of the tractors and had never even noticed it. Is there some advantage/ disadvantage to this? | |
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jd 40 series heater hose question
