Hi C.J.
I do not see any cross, or any reference to 4B6431,where did you get that number?
Other numbers for 8B0438 are 2A5613, 5F6722, 3H6012.
Josh 4B4631 is liners for the gas engine R2 thought they might interchange with the D2 liners I believe the engine blocks are the same and the crankshaft is the same also. Thanks
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