GASKET KIT 1558698 - Caterpillar

Engine: D379 (S/N: 69B1-UP; 76B1-UP) D379A (S/N: 68B1-UP) D379B (S/N: 68B1-UP; 69B1-UP; 34Z1-UP) D398 (S/N: 67B1-UP; 75B1-UP) D398A (S/N: 66B1-UP) D398B (S/N: 66B1-UP; 67B1-UP; 35Z1-UP) D399 (S/N: 35B1-UP; 91B1-UP; 36Z1-UP) G398 (S/N: 66B1-UP)Introduction
The problem that is listed below has a known permanent solution, but parts are not yet available. Until parts become available, use the procedure that is listed below.Problem
The 0R-3037 Cylinder Pack As that are assembled in China have been identified as incorrectly assembled. The pistons and connecting rods may be assembled in an incorrect orientation. The 0R-3037 Cylinder Pack As that are assembled in the United States have been found to be correctly assembled.Solution
Illustration 1 g03809023
Correct piston and connecting rod orientation (1) Valve Reliefs (2) Rod cap bolt headsThe cylinder pack may be used once the pistons and connecting rods have been correctly oriented. Correct orientation has the valve reliefs and the connecting rod bolt heads on the same side. Refer to Illustration 1 for an example of the correct orientation