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Help with Air Injection Pipes

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Old 02-02-2017, 08:03 PM
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Help with Air Injection Pipes

Finally got the new headers on Pacesetter 70-1335 Shorty.
I need to get new air injection Pipes and I've come across 4 different Part#'s but can't quite figure out the differences.
AC Delco 219-208 GM# 12550779 & 219-177 / 12552898 both for Left side but I don't know what the differences are?

AC Delco 219-209 GM# 10244578 / 12552899 ( Can't find AC #) Right Side
again don't know what the difference are?

Thanks for the help
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Old 02-02-2017, 10:02 PM
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Re: Help with Air Injection Pipes

Looking the GM part #’s up on gmpartsdirect just adds to the confusion. They are labeled left and right, but part 5 in the diagram appears to attach to the AIR pump, and the diagram appears maybe more like a 93 setup.

A.I.R Pipe | Genuine GM | 12552898 : GM Parts Direct: Your direct source for Genuine GM Parts

The Amazon ad for 219-208 shows the OEM (GM) # as 12550779

219-209 comes up on AC Delco

ACDelco 219-209 Secondary Air Injection Pipe Assembly

Amazon doesn't have 219-209 listed.

GM # is the part # GM used to build the car. AC Delco # is basically the GM replacement part. Allows GM to sell GM parts through third parties, bypassing the dealers, who sell the GM parts.... if that makes any sense.

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Old 02-04-2017, 04:45 PM
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Re: Help with Air Injection Pipes

Thank you for explaining. The parts are discontinued I was only able to find 1 of the driver side so I'll have to figure out what do on the passenger side.

Thanks again
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Old 02-04-2017, 07:20 PM
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Re: Help with Air Injection Pipes

So many people have deleted the AIR system that you may be able to find them by posting in the "parts wanted" forum.

Do the Pacesetters have female threads? If so, what diameter are the threads? Early engines (94/95) had 22mm threads, later (96/97) had 18mm threads. Some later 95's, or possibly only the 95 CA emission auto trans dual-cat cars are rumored to have 18mm.
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Old 02-05-2017, 03:14 PM
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Re: Help with Air Injection Pipes

Yes the Pacesetter have female threads and our the 22". I posted in the parts wanted.

Thanks again you are always so helpful and very knowledgeable!!!
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Old 02-05-2017, 07:57 PM
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Re: Help with Air Injection Pipes

I think I may still have the passenger side fitting. Not sure I can get up in the attic over my garage at this time if year to look for it. I gave the driver's side away about 12 years ago.
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Old 02-06-2017, 04:54 PM
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Re: Help with Air Injection Pipes

I think I might have found another drivers side that hopefully I can somehow make work for the passenger side. Thank you
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