2001-2019 GM 6.6L Duramax Oil Filter Adapter Threaded 13-16 Inch -16 Suspension Lifts " 76 percent more theoretical holding

2001-2019 GM 6.6L Duramax Oil Filter Adapter Threaded 13-16 Inch -16 Suspension Lifts " 76 percent more theoretical holdingThe CAT 1R 1807 oil filter was designed to function vertically so it lacks an anti drain back valve. When the CAT oil filter is mounted on a Duramax it is angled horizontally. Without the anti drain back valve, dirty oil flows back into the internals every time the engine is shut off. PPE recognized the need for a better filter product made specifically for the Duramax engine. Building on the platform of better performance, PPE increased the quality

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