Service Pro oil filters are manufactured by a variety of suppliers, primarily under the umbrella of the company that owns the Service Pro brand, which is a part of the larger automotive supply chain. These filters are typically produced by established manufacturers in the automotive parts industry to meet specific quality standards. The exact manufacturer can vary depending on the product line and distribution agreements.
Warren Unilube
WIX makes all of NAPA's oil filters
Champion Filters (not connected with Champion Spark Plugs)
Ashland makes the oil to Kubota spec
Champion
hastings
Purolator
I have been searching on the net and found out that WIX makes the carquest oil filters. If you look at the carquest oil filter box it will say Wix Filtration.
Champion
Champion Labs.
Made by Fram.
FRAM makes garbage oil filters, I cut one open and the inside was cardboard. I will only use pennzoil oil filters because It keeps the oil clean and they are very strong filters. The WIX filters are the best in my opinion.