The Thwaites 1613 is a genuine OEM air filter specifically designed to provide superior filtration for various Thwaites dumper models. With an outer diameter of 100mm, an inner diameter of 50mm, and a height of 180mm, this essential component effectively protects the engine from harmful dust and debris. Installing this Thwaites air filter helps maintain optimal engine performance, improves fuel efficiency, and extends the overall lifespan of the machinery. It is suitable for a wide range of Thwaites dumpers, from 1 Tonne up to 10 Tonne capacities.