I've tried buying seals for the 20V pump without any luck. they are a shit to get apart anyway, and it is not economically viable, so we just sell new pumps. all the 4A pumps physically bolt on , but all 3 versions have different offsets meaning the pulleys dont line up. buy EXACTLY what you have on it now and save the agro. I keep all versions in stock at work if you cant buy locally.
the problem is this..
the FWD 4AGE pump, be that GZE/GE/20V are offset a certain amount.. these you must use with a FWD water pump pully..
the RWD 4AGE/4AC pump, has a bigger offset (sticks out towards the radiator more) and must be used with a 4AC V belt pully, or 4AGE RWD pully.. as the RWD pully has more depth and offset to it..
crank pully's are crank pully's not much to know.. some have different sizes.. 16V smallport and bigport are solid steel ones.. the GZE ones have a rubber dampener in them, and i can't remember what a 20V is..
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