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Old 07-26-2007, 05:15 AM   #1
psyflyjohn is offline
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Workhorse parts can be hard to obtain at times. GM parts, some of which are interchangable with WH, are much more easily obtainable. Is there a way to cross reference part numbers ?

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Old 07-26-2007, 05:20 AM   #2
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What model chassis are you referring to?

If you have a W-series, the only GM component on it is the engine (and its dress-ware). Nothing else is made by GM or ever was.

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Old 07-26-2007, 09:00 AM   #3
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I have a W22 chassis. I beleive that at least some parts are able to be cross-referenced. As an example, I recently replaced the a/c compressor. The mechanic had a hard time finding a replacement for the part which had a "W" serial number. After consulting with both WH and GM folks, he was able to obtain an identical compressor with a GM parts number.
Both were made by Delphi, which is a common supplier.
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Old 07-26-2007, 10:40 AM   #4
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I have a few numbers in mind, but what was the number he ended up using?

also, not all WCC parts have a "w" in the number

the latest and greatest WCC number for the compressor is 52445253, which might look like a GM number but is not.
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Old 07-26-2007, 12:21 PM   #5
scoutmstr is offline
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Sorry parts expert but there are other parts on a W chassis made by GM. For instance the MFU on '04 W20 is the same as '97 S-10. There are others.
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Old 07-26-2007, 01:16 PM   #6
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what do you mean by an "MFU"

not a term I'm familiar with, as I may call it something else
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Old 07-26-2007, 02:12 PM   #7
vacation on wheels is offline
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I agree that I wish I could get a cross reference for GM parts. I needed a new steering column lock cylinder. It was very difficult to find the workhorse part.
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Old 08-04-2007, 11:04 AM   #8
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MFU is multi-function unit. It is the assy that houses trun signal, cruise contro, wiper control and fits around the steering column just forward of the steering wheel.FYI the GM part number is 26100985. Mine was replaced under warranty by a GM dealer not WCC in Soldatna. WCC didn't want to authorize it and gave a mighty fight, but Coach Net convinced them (WCC) that it would be cheaper than toeing me to Anchorage. Coach was nondrivabel due to hazard light switch malfunction causing no brake lights

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