Wehrli Custom Fabrication WCF100542-SC OEM Placement Fabricated Aluminum Coolant Tank Kit Sinister Coating

The Wehrli Custom Fabrication WCF100542-SC is a fabricated aluminum coolant tank kit designed to mount in the factory reservoir location. This kit replaces the aging, yellowed OEM plastic coolant reservoir with a durable, custom powder-coated aluminum tank finished in Wehrli's Sinister Coating — delivering a clean, aggressive look under the hood.

Engineered to bolt directly into the stock mounting position using OEM mounting points, this kit requires no cutting, drilling, or additional modifications. Installation can be completed with basic hand tools. The tank includes a black anodized CNC machined billet aluminum cap for a premium, machined appearance that complements the powder-coated finish.

What's Included:

• Fabricated aluminum coolant tank
• Black anodized billet aluminum cap
• All necessary installation hardware
• Powder coating (Sinister Coating finish)

Key Features:

• Direct OEM placement — mounts in the factory coolant reservoir location
• Uses stock mounting points — no modifications required
• Replaces OEM MOPAR part numbers: 55056493AA, 55056493AB
• Installs with basic hand tools
• Custom powder coat finish resists corrosion and heat
• CNC machined billet aluminum cap for a clean, finished look

Important Note: This kit is not compatible with 2003 or early 2004 Dodge Ram 2500 and 3500 models that have the coolant tank mounted on the radiator core support. Confirm your build date before ordering.