3rd Gen 6.7L Cummins Transmission

Handle massive torque output, prevent dangerous clutch slip, and ensure reliable power transfer on your 2007.5–2009 3rd Gen 6.7L Cummins with heavy-duty transmission parts and complete upgrades. Factory automatic and manual transmissions on 6.7L common rail diesels are notoriously vulnerable to failure when subjected to increased fueling, custom tuning, or heavy towing loads. Upgrading to a heavy-duty torque converter, robust valve body, reinforced clutch packs, or a built performance transmission ensures crisp, firm shifts and bulletproof durability under extreme-duty use. Shop top-tier transmission components engineered for exact fitment and severe-duty performance.