Wehrli 04.5-07 Cummins 5.9L Coolant Tank (OEM Placement) - Illusion Purple

When you're looking to clean up the engine bay on your 2004.5-2007 Dodge Ram with the 5.9L Cummins engine, replacing that aged, yellowed plastic coolant reservoir is a smart move. This fabricated aluminum coolant tank from Wehrli Custom Fabrication mounts right where your factory tank sits, making the swap straightforward. It's a great way to add a custom touch and ensure your cooling system looks as good as it runs.

This tank is built from aluminum and finished with a durable Illusion Purple powder coat, giving it a strong, custom look that stands up to engine bay heat and grime. It comes with a black anodized billet aluminum cap and a billet coolant level sight glass, so you can easily check your fluid level. All the necessary mounting hardware is included, and it uses your truck's original mounting points, meaning no other modifications are needed for installation. It’s a well-built piece that’s made in the USA.

This tank is designed specifically for the 2004.5 through 2007 5.9L Cummins engines. It will not fit earlier 2003 or early 2004 models where the coolant tank is mounted on the radiator core support. If you're looking to replace MOPAR part numbers 55056493AA or 55056493AB, this Wehrli tank is a direct replacement.