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Where did you source these from? If they are defective from the manufacturer is there no resolution? Mine is still going strong but I have heard of a few duramax guys finding a bad batch of filter heads. I tried to source a GM part to avoid this issue - but with most everything made in the...

Duramax Fuel Filter installed and up running. Line size @ filter is closer to 1/2 inch but fresh 3/8" line will stretch into place over the Duramax inlet & outlet. I do have the fuel heater wired up using new DIY weather pack connectors. I have not wired up the water separator yet as I wish...

Mounting bracket made. Stock location tested. Hunting down plugs for Duramax fuel heater and water indicator tomorrow. Sent from my SM-S902L using Tapatalk

As cheap as the late model Duramax 04 - 13 filter assemblies have become @ $120-ish (Part # 12642623 With GM filter). I had to order one and give it a try. With factory Primer / Fuel heater / Water indicator / and slip on hose fittings (No Brass adapters necessary) it seems like a winner...