ACDelco Transmission Filter - TF231 Detailed Description Transmission Filter; ACDelco Gold (Professional) Automatic Transmission Filters are a high quality alternative to Original Equipment (OE) parts. These filters help capture abrasive particles such as metal shavings or debris caused by the transmission operation, preventing them from entering or blocking fluid flow that may cause damage to the transmission's internal components. They deliver efficient filtration and outstanding fluid flow to and from your vehicle's transmission. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. Felt filter media helps deliver high-filtration efficiency and excellent fluid flow Some ACDelco Gold parts may have formerly appeared as ACDelco Professional Premium aftermarket replacement part Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models Brand Information ACDelco has a tremendous history that encompasses almost 100 years. With new advances in parts technology, new inventions and innovative ideas, ACDelco holds the highest standards in the industry. For almost 100 years, ACDelco has been sparking the automotive industry and firing customer enthusiasm with automotive products built with a pure passion for the automobile. As you might expect, it began as one man's hobby. But you may be surprised to discover ACDelco's integral part in American history with ties to the first self-starting automobile and this country's first moonwalk.Today ACDelco products are chosen the world over, an accomplishment only the past can explain.