Spark arrestors use centrifugal force to separate solids from exhaust gas to reduce the likelihood that a spark can be expelled from the exhaust system. They are required for certain off-road applications per local regulations, but may also be specified depending upon the vehicle type and use.
Donaldson offers spark arrestors of different sizes so that the appropriate back pressure vs. flow can be achieved. They can be installed vertically or horizontally, depending on the vehicle need. Spark arrestors are not designed to support the tail or stack pipe without additional support.