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How to Fix: 6.6 Duramax Coolant/Antifreeze Leak at Rear of Engine (Parts links in description⬇️) - YouTube
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2018 L5P Duramax. Two steel coolant lines that run on top of the engine, can anyone tell me what they are? : r/auto
![2018 L5P Duramax. Two steel coolant lines that run on top of the engine, can anyone tell me what they are? : r/auto 2018 L5P Duramax. Two steel coolant lines that run on top of the engine, can anyone tell me what they are? : r/auto](https://i.redd.it/2018-l5p-duramax-two-steel-coolant-lines-that-run-on-top-of-v0-d5upd1dxwii91.jpg?width=3024&format=pjpg&auto=webp&s=c2036862f88ef3a4c7e838b06862eddf5b1b7fee)
2018 L5P Duramax. Two steel coolant lines that run on top of the engine, can anyone tell me what they are? : r/auto
![Amazon.com: GXP Direct Replacement Billet Aluminum Coolant Plate with O-Ring Seal Compatible with 2001-2017 Chevy/GMC 6.6 LB7 / LLY/LBZ/LMM/LML / L5P Duramax Diesel : Automotive Amazon.com: GXP Direct Replacement Billet Aluminum Coolant Plate with O-Ring Seal Compatible with 2001-2017 Chevy/GMC 6.6 LB7 / LLY/LBZ/LMM/LML / L5P Duramax Diesel : Automotive](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/712BPgnDcPL.jpg)