Product Description: 1. Fitment: Perfectly works on 2008-2018 Volvo Trucks – All Models (D11, D13, D16 Engines), 2008-2018 Mack Trucks – All Models (MP7, MP8, MP10 Engines). 2. Replacement: This flywheel turning tool alternative to 88800014, 88840317. 3. Function: It helps you rotate your crankshaft with ease while performing overhead adjustment, replacing your injectors, or timing your engine. 4. Material: Made of high quality solid steel with black power coated surface, providing an unparalleled lifespan, anti-corrosion/wear. .