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Fits: 2017 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel Did your engine block heater stop working? The heater cord can short out causing it to stop working. Help keep your engine warm for those cold morning start ups. More importantly, shorted or damaged heater cords can be a fire hazard. Even if your heater cord still works fine, but is original, it is highly recommended to replace it due to age and heat damage over time. Replace it with this updated OEM replacement heater cord. Replaces Part#: GM 23321379 GM 84303149 GM 84807829 Note: Must be used with Engine Block Heater Part# 12724955
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🇺🇸 Ship from USA · On Agora since 2025
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