Wehrli WCF100433-BR OEM Placement Coolant Tank Bengal Red 2017-2019 L5P Duramax

Vehicle Fitment

• 2017-2019 Chevrolet Silverado 2500HD (6.6L Duramax L5P, 4WD/2WD - All Trims)
• 2017-2019 Chevrolet Silverado 3500HD (6.6L Duramax L5P, 4WD/2WD - All Trims)
• 2017-2019 GMC Sierra 2500HD (6.6L Duramax L5P, 4WD/2WD - All Trims)
• 2017-2019 GMC Sierra 3500HD (6.6L Duramax L5P, 4WD/2WD - All Trims)
• 2019+ Chevrolet Silverado 4500HD / 5500HD / 6500HD (6.6L Duramax L5D - All Trims)
• 2019+ GMC Sierra 4500HD / 5500HD / 6500HD (6.6L Duramax L5D - All Trims)

Fitment Notes

• Mounts in the OEM coolant tank location using factory mounting points - no modifications required.
• Supersedes WCF100661.
• This listing is for the Bengal Red (-BR) powder coat color option.

Features

• Fabricated aluminum construction replaces the factory plastic coolant reservoir, offering superior strength, heat resistance, and long-term durability.
• Integrated coolant level sight glass allows for quick, at-a-glance coolant level checks without removing the cap.
• Includes a high-quality, replaceable float-type low coolant level sensor - directly addresses the known OEM failure point where the non-replaceable factory sensor requires a complete tank replacement to fix a false low coolant warning.
• CNC machined billet black anodized aluminum cap included for a premium, corrosion-resistant seal.
• Uses OEM mounting points and installs with basic hand tools - no additional modifications or upgrades needed.
• Overflow hose and all installation hardware included for a complete bolt-on installation.
• Finished in Bengal Red powder coat for a bold, custom underhood appearance.
• Made in the USA by Wehrli Custom Fabrication.

Specifications

• Part Number: WCF100433-BR
• Color/Finish: Bengal Red Powder Coat
• Tank Material: Fabricated aluminum
• Cap: CNC machined billet black anodized aluminum
• Low Coolant Sensor: Replaceable float-type sensor included
• Sight Glass: Integrated
• Supersedes: WCF100661
• Package Weight: 10.0 lbs
• Package Dimensions: 16.0" W x 16.0" H x 10.0" L
• Country of Origin: USA

Included Components

• 1x Fabricated aluminum coolant tank with integrated sight glass (Bengal Red powder coated)
• 1x CNC machined billet black anodized aluminum cap
• 1x Replaceable float-type low coolant level sensor
• 1x Overflow hose
• Installation hardware kit

Product Description

The Wehrli WCF100433-BR is an OEM Placement Coolant Tank Kit for 2017-2019 L5P Duramax 2500/3500 and 2019+ L5D Duramax 4500/5500/6500 trucks. It replaces the factory clear plastic coolant reservoir - which yellows and clouds with age - with a fabricated aluminum tank powder coated in Bengal Red. Beyond appearance, it directly solves a well-known OEM reliability issue: the factory reservoir's low coolant sensor is not replaceable, meaning any sensor failure requires purchasing and installing an entirely new coolant reservoir assembly. The WCFab tank uses a high-quality, serviceable float-type sensor that can be replaced independently for the life of the vehicle.

The kit includes an integrated sight glass for easy coolant level monitoring, a CNC machined billet black anodized aluminum cap, overflow hose, and all installation hardware. It mounts in the stock location using OEM mounting points with no modifications required. Made in the USA by Wehrli Custom Fabrication.