GMC Sierra 3500 HD Upper Coolant Pipe - Wehrli - Semi-Gloss Black - `06-`10. This aluminum upper pipe replaces the factory rubber hose on 2006–2010 Duramax LBZ/LMM trucks for dependable, long-term service.

Built by Wehrli Custom Fabrication, the precision-formed aluminum tube with a semi-gloss black powder coat resists heat and aging far better than rubber. It helps maintain consistent coolant flow and includes silicone boots with stainless T-bolt clamps for secure, serviceable connections. Direct fit for 2006–2010 Chevrolet Silverado and GMC Sierra 2500/3500 HD Duramax LBZ/LMM; replaces GM 19330105, 15792824, 25833204. Note: this year-range pipe does not include a WCFab badge.

Features

• Aluminum upper coolant pipe
• Semi-gloss black powder coat
• Silicone boots included
• Stainless steel T-bolt clamps
• Direct replacement for OEM rubber hose
• 2006–2010 Duramax LBZ/LMM compatibility
• Made in the USA

Have questions or planning a build? Call us. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX), 562-981-6800 (CA).

Thinking about purchasing multiple items? Contact us for shipping discounts. We install on premises at both locations.

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