2017-2019 L5P / 2019+ L5D Duramax OEM Placement Coolant Tank Kit

A coolant tank that looks the part

Wehrli's fabricated aluminum tank mounts in the factory coolant tank location and replaces the clear plastic reservoir, which tends to look tired with age. It has a sight glass for checking the level at a glance and a black anodized billet cap.

It fits stock trucks, uses the factory mounting points and installs with basic hand tools.

The factory tank's level sensor cannot be replaced on its own and is known to fail early, triggering a false low-coolant warning; with stock parts the fix is a whole new reservoir each time. Wehrli's tank uses a float-type sensor that can be serviced for the life of the truck.

Who it's for

6.6L L5P / 2019+ L5D Duramax owners cleaning up the engine bay or replacing a worn plastic reservoir.

Key specs (per Wehrli)

What's included

• Fabricated coolant tank
• Billet cap
• Serviceable float-type low coolant sensor
• Overflow hose
• Sight glass
• Install hardware

Fitment notes

• Fits 2017-2019 Chevrolet Silverado / GMC Sierra 2500 HD and 3500 HD with the 6.6L L5P Duramax.
• Also fits 2019-and-later L5D Duramax 4500/5500/6500 medium-duty trucks.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.