I just knew it would be a pajero, almost certain its a 2.8. How do you know its cracked mate,have you had the head off?
They do crack but if its not been really overheated it may just be a gasket. What are the symptoms? if it is just overheating it may be a water pump,if it is losing coolant it may still be a water pump,check for rusty marks around the front of the engine.Get it checked by a garage to confirm that its a head/gasket problem and forget about any sealant it will cause more damage in the long run.
hope its a pump only 40 quid..
The only time to use any of these products is if y