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Oil Filter doesn't fit!

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Old Dec 21, 2011 | 08:24 PM
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Default Oil Filter doesn't fit!

I am running a 5.3 out of a 2003 suburban. However, I am using the H3 muscle car oil pan. I tried the Napa Gold 1042 filter and it would not screw on. Is it because the H3 uses a different thread pattern. If I got the Napa Gold 7060 would it have the correct pattern? What do you guys recommend for this pan? Car will be driven a lot and raced extremely hard on weekends. I will change the oil about every other month.

Thanks.
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Old Dec 21, 2011 | 08:30 PM
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AC Delco PF48 or equivalent, the newer pans have a larger diameter threaded nipple.
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Old Dec 21, 2011 | 08:59 PM
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^^^Exactly.

You need a filter with a 22mm metric thread instead of the smaller diameter standard pitch threads. Try a 2007 6.0 Silverado filter, works for me.
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Old Dec 21, 2011 | 09:05 PM
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I use the 07 Hummer filter, or Caddy.
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Old Dec 21, 2011 | 10:06 PM
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Okay. Thanks everyone. I figured it had to be a metric thread. Dang these filters sure are small though.
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Old Dec 21, 2011 | 11:30 PM
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One thing swappers should do is to make note of where parts come from and a list of part numbers you need.

I ran into this exact thing the other weekend changing my oil. I picked up a filter for an '04 GTO... forgetting I used an H3 pan... If I had of just kept a list of little things like that to my my "parts needed" list it would have saved some trouble.
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Old Dec 22, 2011 | 07:04 AM
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I found that the '05 6.0L Silverado filter looked pretty small.... but the 2006 Trailblazer filter was taller (more filter area ?) and fit without issue (AC Delco PF61--- Now PF61E). It "may" fit the H3 pan also ???

Last edited by Doug G; Dec 22, 2011 at 02:55 PM.
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Old Dec 22, 2011 | 03:29 PM
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The part number for the nipple to use the older style filter is 12552357. Lists for around $8 from GM.
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Mobil 1 filter...M1-113
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Old Dec 22, 2011 | 11:02 PM
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Thanks everyone. I am keeping a list. Remember, I haven't run this engine yet so I don't know what works and what doesn't. However, I was told that the H3 pan used a metric thread and had to use something in a 2007 or newer. So ***** and giggles I purchased an oil filter for a 2006 silverado and a a2007 silverado. The 1042 did not fit and the 7060 did fit. So it stood true. Thanks for everyones help. I was worried I had stripped threads or something. That would have sucked.
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