If you get bolts from Aisin (I ordered mine from Volvo) I got a few new bolts (one for sure). It's got new anti-sieze compound on it (it's blue!). So uh...ya, replace it. why the hell not. Save the old ones to the tool box.I see that a Volvo pump comes with the bolts but I'm getting an Aisin which doesn't. Can I just clean the old ones up and put them back?