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Old 10-10-2023, 04:23 PM   #1
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Join Date: Jul 2023
Location: Great Falls, VA
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Question What part # for these bolts?

Does anyone know what part # for the bolts that go here? I'm fairly certain they're M8 flange head, almost 80mm. The official parts catalog (as you can see on the diagram) does not include them anywhere that I can see. I've searched it repeatedly. Thanks Porsche. I just want to make sure I order the correct replacements, as bolt metals can vary wildly. Torque spec on these is 65 Nm / 48 ft-lb.

(2000 986 2.7L 5-speed manual transmission)

I measured the length of the thread of the ones that came out, which showed about 78mm. I replaced them with some temporary Dorman bolts from the local auto parts store, intending to order replacements, but stupidly I threw the originals away (and the receipt apparently) because ALL THREE originals failed as I was torquing them! In the second pic you can see where it was twisting @ around 57mm.

Last edited by rntrg; 10-10-2023 at 04:30 PM.
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Old 10-10-2023, 06:14 PM   #2
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Location: Laval QC
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The version of the Katalog that I have has these part numbers:
Tiptronic 900 378 022 09 hexagon-head bolt M 8 X 25 (M249)
5-speed 900 378 175 09 hexagon-head bolt M 8 X 65 (M481)

Arctic Silver 2000 Boxster S - bought with a broken engine, back on the road with the engine replaced
Green 2000 Boxster 5-speed and 1978 928 auto
1987 924S 5-speed (Sold) - Blue 2000 Boxster 5 spd (Sold)
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986 , boxster , muffler , transmission

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