Circle G

New User
I have a 1550 diesel. I have two
hoses running from the water pump
to a plate in the rear of the
motor the plate has two metal
lines coming out. What is this? Is
it a transmission cooler?
 
Also -- if you're new to your 1550, those hydrapower coolers have a tendency now 50+ years later to exchange more than heat. You may want to look for oil (ATF) floating on the top of your coolant when you open the radiator cap. If you have oil in your coolant, your cooler could leaking -- through pinholes in the heat exchanger tubing. This happened to me.
 
I removed the old cooler and installed a Hayden automotive trans cooler in front of the radiator. I think that is what Oliver used on the 1555's (I know the 1655's had them).

Hayden 678 Cooler (about $60)
Hayden Automotive 250 Quick-Connect Coupler
5/8 trans hose
 

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