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M20 Tstat housing question, are New OEM & factory same ?


DanOKC

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This is on a 83 528e, the original housing was one complete cast piece, the

replacement I got from autohauz AZ, is all cast, except for the small hose outlet on the bottom, is now a press fit aluminum pipe, which came loose after first 30 minutes of operation. I'm either gonna try to tap the housing & put in a threaded brass plumbing fitting, or try to find a good used one if all new ones are made this way. The old one's surface is slightly warped and/or corroded, so even with a new cap, and seal, it tends to seep a little. Here is a link to picture of exact same one I got, says " RONAK" on it. The press fit pipe is the one poking out at the lower left.

http://www.rmeuropean.com/Part-Number/Thermostat-Housing-NOTE--Also-use--%282%29-07-11-9-919-228-plug-%282%29-07-11-9-963-200-seal-__11531730470_MTC_CB4144DE.aspx

I'd order one from maximillon if I knew it was all one cast piece

2002 owner since 1980

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The Ronak one is a POS. I tried one when they came out and when I tightened a sensor the thing cracked on me. This was of course the sensor you must do last as the fuel rail is in the way.

I used OE before and will continue to do so. I've never had a problem with the OE BMW ones.

HTH

Tom Jones

BMW wrench for 30 years, BMWCCA since 1984 at age 9
66 BMW16oo stored, 67 1600-2 lifelong project, 2 more 67-8 1600s, 86 528e 5sp 586k, 91 318i
Mom&Dad's, 65 1800TiSA, 70 2800, 72 2002Tii 2760007 orig owners, 15 Z4 N20

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The small hose fitting on the OE ones is pressed in but I have not ever had a problem with them in use of what must be over a hundred by now :)

Tom Jones

BMW wrench for 30 years, BMWCCA since 1984 at age 9
66 BMW16oo stored, 67 1600-2 lifelong project, 2 more 67-8 1600s, 86 528e 5sp 586k, 91 318i
Mom&Dad's, 65 1800TiSA, 70 2800, 72 2002Tii 2760007 orig owners, 15 Z4 N20

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