1398963 Gasket Kit Fits Caterpillar Models
1398963 Gasket Kit Fits Caterpillar Models
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One New Aftermarket Replacement Cylinder Head Gasket Kit for Caterpillar (Cat) 3400 Series Engines
This aftermarket replacement cylinder head gasket kit replaces Caterpillar (Cat) OEM part number 1398963. It is a multiple-cylinder-head gasket set designed for top-end engine rebuilds and valve grind services on Caterpillar 3400 Series diesel engines. The kit provides all necessary gaskets to ensure a reliable combustion chamber seal, preventing coolant and oil leaks into the cylinder bores. These engines are used across heavy-duty construction, marine, mining, and power generation applications.
Compatible Engine Applications
Caterpillar (Cat) 3400 Series: 3408, 3412, 3412B, 3412C, C27, C32
Note: Certain cylinder head gasket sets for the 3412 engine are designated for specific serial number prefix groups (such as 7BL, 3JK, 7HG, 9KS, 9PW). Verify your engine serial number prefix before ordering to ensure correct fitment.
Replaces Part Number(s):
1398963
Aftermarket Interchange Numbers
M-1398963 (Interstate-McBee), IPD 1398963, CT-1398963 (Bulldog), 1397040
New aftermarket replacement part - not remanufactured, not used.



