Wehrli 2001-2010 & 2017-2025 Duramax Low Coolant Level Sensor

Correct replacement sensor for WCFab Fabricated Coolant Tanks designed for LB7, LLY, LBZ, LMM and L5P Duramax trucks Replacement Coolant Level Sensor for 2001-2010 & 2017-2025 Duramax's using a WCFab Fabricated Coolant Tank. NOTE: This is not a direct replacement for your truck's plastic OEM tank. If you have a defective stock plastic coolant tank with the non-removable sensor and are looking to replace that, please see our complete replacement aluminum coolant tank options which use this serviceable sensor option.