Cooling System Question (Heavy Duty - Standard)

[Dirt Works]

I have noticed some different parts items listed for a standard cooling system and a heavy duty system. What's the difference? I just replaced clutch fan and found out there is a difference with a serpentine belt due to the counter rotation. But my 85 CJ7 also has a offset radiator cap opening and a 7 blade radiator fan that I couldn't find a part number for

Just trying to gain some CJ knowledge!

 

[tinman]

I was going through an issue with my radiator this summer, and I noticed some different parts for different years too.

Maybe this thread with help a little-Radiator thread

 

[Dirt Works]

Where are all the veteran CJ owners with the answers? Were the 85 CJ7 with AMC 258 i6 / 4.2l ever equipped with the serpentine belt setup?

 

[tinman]

They should, my 81 has a serpentine belt. It is a California model though.