You can choose the Sealants you need, whether you are reassembling your headlights or adding engine components to your 2019-2023 Ram 6.7L Diesel. Due to their silicone manufacturing, these RTVs can withstand high temperatures. There is engine specific, all-purpose, and headlight specific RTVs available. You'll find to brands such as Ford Motorcraft, ACDelco, MAHLE, Oracle, and DEI at XDP.