Pro-Guard HD oil filters are the next generation in oil filter technology. Pro-Guard HD Oil Filters deliver increased flow and efficiency that are demanded from performance applications. Pro GUARD HD Oil Filter (4 Pack) GM Diesel Trucks 01-18 V8-6.6L (td) LB7/LLY/LBZ/LMM/LML/L5P GM Diesel Trucks 01-18 V8-6.6L (td) LLY/LBZ/LMM/LML/L5P
