GMC Sierra 2500 Upper Coolant Pipe - Wehrli - Semi-Gloss Black - '20-'25. This fabricated aluminum pipe replaces the factory rubber upper radiator hose on L5P 6.6L Duramax trucks for a cleaner, more robust setup.

Designed as a direct-fit for 2020–2025 GMC Sierra and Chevrolet Silverado 2500/3500 with the L5P, it works with the OEM GM radiator. The semi-gloss black powder coat resists corrosion and heat. Silicone boots and stainless T-bolt clamps ensure secure connections. Installs with basic hand tools; no modifications required. Replaces GM part numbers 84813629 and 85122989. Note: aftermarket radiators may cause fitment issues.

Features

• Direct-fit for 2020–2025 L5P 6.6L Duramax (Sierra/Silverado 2500/3500)
• Fabricated aluminum hard pipe with semi-gloss black powder coat
• For use with OEM GM radiator
• Includes silicone boots and stainless steel T-bolt clamps
• Installs with basic hand tools; no modifications required
• Replaces GM P/N 84813629, 85122989

Have questions or want to book an install? Call our team. We offer installation and customization services at our Austin, Texas and Los Angeles, California area locations. Texas 512-982-9393, California 562-981-6800.

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

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