oil drain plug sizes

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Oct 4, 2004 | 11:16 AM

vital49

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From: Purgatory

oil drain plug sizes

Do the 93 and 99 SE models have the same size oil pan drain plugs?

Oct 4, 2004 | 01:14 PM

glorkar

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From: Oshkosh, WI

I'm pretty sure they are still the same size drain plug. It should be a 15mm head on it.

Oct 4, 2004 | 01:58 PM

vital49

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From: Purgatory

Yes, they are both a 15 mm head, but I guess I'm looking for the thread pitches. Are the thread pitches the same size?

Oct 4, 2004 | 05:00 PM

glorkar

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From: Oshkosh, WI

I'd say they are. A plug from a 99 should thread right into a 93 and vice versa. I'm 90% possitive that GM uses the same drain plug in all of their vehicles, it'* just cheaper that way.

Oct 5, 2004 | 08:30 AM

vital49

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From: Purgatory

I tried it last night. They are NOT the same thread pitch. The 93 has finer threads than the 99.

Oct 5, 2004 | 11:13 AM

glorkar

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From: Oshkosh, WI

Huh, I guess you learn something new every day

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