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  View original topic: GTI Engine Number
VW Nevada Tue Feb 26, 2008 8:22 pm

I know Mk1 GTI's are suppose to have a JH code engine, but what does
that mean? Am I suppose to be able to see JH and then a number listed
somewhere, like on my engine like on my air cooled motor? (ex. AH code
engine) Where is this number suppose to be?

plasticman1432 Wed Feb 27, 2008 8:28 am

The engine serial number is on the side of the block facing the radiator, down between the #2 and #3 cylinders; look for a flat(machined) area with stamped letters and numbers on it....you might need to clean the area with degreaser and a wire brush to see it, but it's there.

The first two or three digits of a watercooled VW engine number are the engine code - in your case, JH. The remaining six or seven digits are the actual production number of the engine.



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