Keep your heavy-duty engine running smoothly with this comprehensive maintenance kit compatible with Peterbilt 337, 348, 579, and Kenworth T470, T370, T270 models. Specifically designed for PX-7, PX-8, PX-9, and ISX15 engines, this TMLGB kit includes essential filtration components to maintain optimal engine performance. The kit serves as a direct replacement for AF27817 and comes with all necessary seals and O-rings for proper installation. Built to meet strict quality standards, these filters help protect your engine by effectively capturing harmful contaminants and ensuring clean fluid circulation. Regular maintenance with these filters helps extend engine life and maintain peak operating efficiency. This complete kit provides everything needed for routine filter service on compatible truck models, making it a convenient choice for fleet maintenance programs and professional mechanics.