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 Corrosion is often seen on this stock part as they age out. This can lead to blockage and reduced cooling capability. Replace your corroded OEM thermostat housing bridge with the PPE high-strength, cast-aluminum Thermostat Housing for 2001-2007 GM 6.6L Duramax LB7, LLY, LBZ. This high-quality upgrade is a direct replacement on to the OEM cylinder heads and is compatible with the factory thermostats, temperature sensor and the stock thermostat cover.
Take your build to the next level and pair it with the PPE 304 Stainless-Steel Thermostat Housing Cover.
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