Compression Ignition Addict
Join Date: Apr 2008
Location: Wellington Nevada
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I don't know where you got the price on a Donaldson but they cost much less shiped than what you paid for the wix. I can't argue..steel costs more than plastic..but its not the same..you also don't have a support clamp thats needed
The WIX/NAPA 6637 is not a hydrophobic (water resistant) element and using it as an open element should be avoided.
There are other concerns such as providing minimal radial clearance, isolating engine vibration, positioning away from rain drip channel, etc. But, I just wanted to draw a clear difference between copies, DIY efforts, and a Tymar product.
Aside from impeding minimal radial clearance and isolation of engine vibration, a serious cause for concern is placing the filter, especially a 6637 element, under a rain drip channel for the hood. Beyond the ambient moisture that will cause restriction as it is absorbed into the non-hydrophobic media, you will be directing water towards the filter anytime the rain drip channel flows more rain than it can hold or spills over the retainer during left turns.