304 Stainless Steel Engine Coolant Return Pipe - 2001-2004 GM 6.6L Duramax

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Specifically designed for use in conjunction with the factory thermostat housing. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is pro ne to rusting and eventually leaking. Allows for installation of factory turbo coolant return thermostat. Also great for marine applications. Show more