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differences between s4 and s5 water pump/thermostat housing?

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Old 06-07-04, 10:32 PM
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differences between s4 and s5 water pump/thermostat housing?

I see there are two separate FC thermostats, one with an o-ring and one without. How can I tell which year my water pump is?

Thanks,
Victor
Old 06-07-04, 10:42 PM
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All I can tell ya is that my S4 t-stat doesn't have the o-ring...Hope that helps a little...
Old 06-08-04, 12:31 AM
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The S5 thermostat housing has 3 bolts IIRC>
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