The Duramax EGR cooler your diesel came with is vital to keeping it compliant with emissions regulations and street legal. But too often, weak construction and heat stress will turn your stock EGR cooler into a ticking time bomb. A failing EGR cooler will leak coolant into your intake, burning your coolant and causing white smoke to bellow from your exhaust. And in the worst cases, when coolant drips in through your intake and pools in the cylinders, it can lead to engine-destroying hydro-lock!
Duramax EGR Coolers from Sinister Diesel
Sinister Diesel manufactures the highest quality TIG-welded stainless steel Duramax EGR coolers for your truck. Replace your Duramax EGR cooler before you’re faced with the problems the stock unit causes.
Designed and Manufactured in the USA
All of our Sinister Diesel products for your Chevy or GMC Duramax are designed and manufactured in-house for a perfect fit.And if you have questions about our EGR coolers or if you would like assistance choosing one for your truck, remember we’re always here to help by phone, email, or through our easy-to-use on-site chat feature!