8.1L oil cooler and transmission cooler

[Georgia SeaDawg]

I've ordered the oil coolers and transmission coolers from Mr.Cool and plan on replacing them this weekend. How difficult is this task? The starboard oil cooler will be a challenge, but everything else seems straight forward. Any helpful advice in prepping?

 

[Georgia SeaDawg]

I changed the transmission coolers and oil coolers today. Not a bad job. Thank you www.mrcool.us I used part number 863832T01 for the transmission cooler and part 863904T for the oil cooler. Perfect fit.

 

[onthejob]

Good info, thanks. Any modifications or adapters needed? This is on winter project list.

 

[northern]

I got oil and transmission cooler from them and the thread size was different bigger. I had to sleeve them. It worked out fine and the price was right. Keep one each of the old ones as a spare as they do fail. Changing mine they were last changed 9 years ago and the bolts were a bit rusty. Spray the bolts with penetrating oil a day or so in advance. Makes life a bit easier. I cut the ones I did not keep as spares in two to see how they looked. Did not see any corrosion.

 

[Georgia SeaDawg]

I did not have to modify any fitting. Everything fit perfect. Thankfully.

 

[onthejob]

So it was the tranny cooler with 1/2" Inverted flare oil fittings you got for $158?
http://www.mrcool.us/863832t01-mercruiser-transmission-cooler.html

or the one with the 3/8" Inverted flare oil fittings for $166?
http://www.mrcool.us/863832t01-mercruiser-transmission-cooler-17248.html

 

[Georgia SeaDawg]

I'm not sure of the size... I used a crescent wrench. Everything matched up for me, with the existing hardware.

 

[northern]

The ones I got only came in 1/2" and my hoses are 3/8" But I have 454s not 8.1s. Mine were $110 each so are different than yours.