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It might be production quality, it might not. Three things will drastically shorten the life of a water pump and one is quite common.
1. Corrosive coolant
2. Too much pulley tension
3. An air bubble trapped in the WP causing it to fail to prime and score the shaft seal.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
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