Identifying CAT 977 (K or L) help

pittsburgh cat man said: The x on the end of casting number only means it was made in japan Click to expand... All the more reason to believe that the block is original and belongs to the same motor the tractor was built with. I just checked and the 5S6777 Part Number is discontinued with no listed replacement.

I would guess some where it would go to a spacer plate block

Nige said: 5S6777 Part Number is discontinued with no listed replacement. Click to expand... In the Parts Manual the block is listed as 5S6778. It's shown as being used in the 11K US-built 977L from S/N 11K3919 to 11K4257, all of which were equipped with a D333C engine. In the 11K machine the 3306 engine, still with pre-combustion chambers, didn't arrive until 11K5083.

Casting numbers are usually one number off part number

My info on casting numbers for the block show the 5S6777 used on both the D333C and 3306 along with a whole string of other interchange casting numbers.

pittsburgh cat man said: Casting numbers are usually one number off part number Click to expand... The spread between casting and part numbers depends on the number of machining operations

Check the water pump....

It's been a BUSY month but I've been able to do fluid and filter changes, get about 4 hours of heavy run time on this.......it's a BEAST. This engine runs extremely well, shifts smooth, steers smooth, and I am very pleased with the condition this machine is in. Such a huge blessing to my family and our needs. I wanted to say a huge THANK YOU to everyone who posted on here to help me. Your wisdom and knowledge are invaluable. I do have one issue where I'm getting coolant in the hydraulic fluid but I will start a different post for this. I downloaded and purchased the parts manual for this machine but I don't see where coolant ties in with the hydraulic system.

Is there an oil cooler on the bottom of the rad?