2001-2019 CAT Converted Duramax 6.6L High-Efficiency Oil Filter (1R-1807) 2005-2006 GM Engine Components Each unit is precision cast

Each unit is precision cast and CNC machined for maximum performance and flawless installation

but bypasses the factory transmission cooler in the event it is contaminated from a transmission failure

Cracked transmission tail shaft housings (located between the transfer case and the transmission) are a common problem for GM Allison-equipped 4x4 pick-ups in off-road and drag racing applications

or a 7/8" Threads

New Design Traps Water Internally

2001-2019 CAT Converted Duramax 6.6L High-Efficiency Oil Filter (1R-1807) 2005-2006 GM Engine Components Each unit is precision cast2001 2019 CAT Converted Duramax 6. 6L High Efficiency Oil Filter (1R 1807) Cat Advanced Efficiency Engine Oil Filters provide superior protection against particles that can make their way into the lubrication system during service or component wear. Although all engine oil filters remove some abrasive particles, many competitive elements are not effective at capturing and retaining the particles that are most damaging to lubrication system components.