DIESEL TORQUE It’s time to rev up your engines. The Diesel is back again and this time it’s all torqued up. Updated from the NBT Hybrid cover to the Juiced Solid cover, this new Diesel brings a ton of performance to Hammer’s mid performance category. You better find some oil for this big rig. Updated with Hammer’s patent pending carbon fiber outer core, this Diesel carries Hammer’s industry leading three year warranty.