Watch out for Amazon, company called Killer Filter Inc out of Greenville UT. They sold me an air filter (Donaldson P537448) that had been dropped, not while in the box because the box was undamaged, I made the mistake of not inspecting the filter right away, after the return period lapsed then I looked at and found the damage. Its a killer filter alright, it'll kill your engine. On top of that I paid $177 for the thing on Amazon from Killer Filter and I bought the same filter from the truck parts shop for $122