GMC Sierra 3500 Upper Coolant Pipe by Wehrli — Bengal Blue (2020–2025). Fabricated aluminum hard pipe that replaces the factory rubber upper radiator hose on L5P 6.6L Duramax trucks.

Built as a direct-fit for stock Chevrolet Silverado and GMC Sierra 2500/3500 L5P trucks, this kit pairs a Bengal Blue powder-coated tube with silicone boots and stainless T-bolt clamps. It installs with basic hand tools and is intended for use with the OEM GM radiator; aftermarket radiators may cause fitment issues. Also replaces GM part numbers 84813629 and 85122989 while cleaning up engine bay routing.

Features

• 2020–2025 6.6L Duramax L5P fit (Chevrolet Silverado/GMC Sierra 2500/3500)
• Fabricated aluminum; Bengal Blue powder coat
• For OEM GM radiator; no truck modifications required
• Silicone boots and stainless steel T-bolt clamps included

Questions about fitment or finish? Call our Austin, Texas shop at 512-982-9393 or our Los Angeles, California area shop at 562-981-6800. We offer installation and customization services at both locations.

If you are considering multiple items, contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov