CTA, 93mm, 36-Flute Oil Filter Wrench, CTA-A253, Black The CTA A253 is a precision-stamped, deep-reach cap wrench designed for a perfect fit when removing both aftermarket and OE spin-on filters and filter housings. This 93mm, 36-flute oil filter wrench ensures efficient oil filter removal, reducing maintenance time and costs for fleet operations. It fits Motorcraft filters and features a 3/8 square drive for compatibility with standard tools.