Re: 2001 K1500 vs K2500HD: Air Cleaner and ducting differences?
There was only one MAF used on 2001 gas trucks. They are all interchangeable. There is only 1 listing for 4.3, 4.8, 5.3, 6.0, and 8.1 trucks. GM part # 19330121.
I did not check other years.
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