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Review on IFJF Adapter Duramax 1R 1807 AG121853 by Brandon Miller

Revainrating 5 out of 5

Want to ditch those nifty Duramax oil filters?

Works exactly as advertised. After quickly removing the standard threaded bushing, this replacement shaft simply threads into the engine filter base and then tightened by inserting a 1/2" ratchet into the bushing. You can now install a MUCH larger CAT oil filter for superior flow.

Pros
  • Sleek design
Cons
  • Flaws