The BD Diesel Deep Sump Transmission Pan (1061650) is a high-performance upgrade designed specifically for 2001-2018 GM Duramax diesel trucks equipped with the Allison 1000 transmission, including LB7, LLY, LBZ, LMM, LML, and L5P engine variants. Constructed from durable cast aluminum, this deep sump pan increases fluid capacity for improved cooling and transmission longevity under heavy-duty use or towing conditions. Its finned design enhances heat dissipation, while the magnetic drain plug helps capture metal particles for cleaner fluid and extended component life. The BD Diesel pan also features a pre-drilled port for a temperature sensor, making it easy to monitor transmission performance. This upgrade is ideal for Duramax owners seeking improved reliability and efficiency from their Allison transmission.