EGR Cooler (904-273) by Dorman®. Horizontally Mounted. Manufactured specifically for diesel vehicles, Dorman’s EGR Cooler is quality-engineered to cool exhaust gas and recirculate it back to the engine. Replacement prevents coolant from leaking into the exhaust manifold.
EGR reduces the oxide emissions from your vehicle by recirculating the exhaust gases to the engine's cylinders. When your engine burns fuel, it emits noxious nitrous oxides during combustion. These oxides are recirculated to engine to improve its efficiency and to reduce emissions from your vehicle. The EGR cooler cools down the hot exhaust air before it is routed into the combustion chamber to lower the temperature and oxide content.
We’ve personally had great success running Bullet Proof Diesel’s EGR Cooler on our 6.0-liter Ford Power and now they’ve taken their EGR Cooler a step further by achieving Smog legal status in California. An Executive Order number was granted by the California Air Resources Board for their square style EGR Cooler () as a fully-compliant, smog-legal upgrade.