E46Fanatics - View Single Post - DIY: ECS Tuning level II cooling system refresh + 3 cooling hoses (Step by step)
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Old 10-08-2011, 12:31 PM   #50
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Join Date: Apr 2011
Location: VA/DC, USA
Posts: 495
My Ride: 2004 330i (ZHP) x2
Warning about the water pump stud bolts. They break pretty easily. I thought it was the torque wrench releasing, but it was actually the aluminum bolts/studs breaking. I was was able to back them out with a pair of Vice Grips-thankfully there was enough room to grab the remaining stub.

After more research, it appears the OEM numbers are 07129901921 or M6X30-8.8-ZNS. Anyone know of alternate sources to buy them? I'd prefer something more substantial than the OEM aluminum (?) ones. --Other than that the project is going fine... B-]

It appears ECS Tuning might have them: Mfg Part#07129904544, ECS Part# ES16061 @ $1.04/ea. Trying to verify with them now.

Last edited by ELCID86; 10-08-2011 at 12:42 PM. Reason: update
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