The BD Diesel Xtruded Double-Stacked Auxiliary Trans Cooler Kit (1030606-DS-12) is a high-performance cooling solution designed for heavy-duty applications, specifically engineered to fit 1994–2016 Cummins 5.9L and 6.7L engines, as well as 2001–2016 Duramax LB7, LLY, LBZ, LMM, and LML engines. Featuring a durable aluminum construction and 1/2-inch tubing, this double-stacked cooler provides significantly improved heat dissipation compared to stock transmission coolers. Its extruded design maximizes surface area for optimal airflow and cooling efficiency, helping to reduce transmission temperatures under load, especially when towing or hauling. This kit is ideal for diesel truck owners seeking enhanced transmission longevity and consistent performance in demanding driving conditions.
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BD Diesel Xtruded Double-Stacked Auxiliary Trans Cooler Kit 1/2 In Tube (1030606-DS-12) for 1994-2016 Cummins 5.9L / 6.7L & 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML
$1,050.95
The BD Diesel Xtruded Double-Stacked Auxiliary Trans Cooler Kit (1030606-DS-12) is a heavy-duty transmission cooling upgrade for 1994–2016 Cummins and 2001–2016 Duramax diesel engines. Made from durable aluminum with 1/2-inch tubing, its double-stacked, extruded design enhances heat dissipation and airflow, lowering transmission temperatures—especially during towing or hauling. Ideal for diesel truck owners seeking better performance and transmission durability in demanding conditions.
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