GMC Sierra 2500 Upper Coolant Pipe - Wehrli - Aluminum for Duramax LB7/LLY - Semi-Gloss Black - `01-`05
GMC Sierra 2500 Upper Coolant Pipe - Wehrli - Aluminum for Duramax LB7/LLY - Semi-Gloss Black - `01-`05

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GMC Sierra 2500 Upper Coolant Pipe - Wehrli - Aluminum for Duramax LB7/LLY - Semi-Gloss Black - 01-05. A rugged aluminum replacement for the factory rubber upper radiator hose on 2001–2005 Chevrolet Silverado or GMC Sierra 2500/3500 with the 6.6L Duramax LB7/LLY.
Built by Wehrli Custom Fabrication (WCFab), this direct-replacement pipe offers sturdy construction and consistent routing. The semi-gloss black powder coat helps guard against corrosion, and the kit includes high-temp silicone boots and stainless steel T-bolt clamps for secure connections. Replaces GM part numbers 15792832 and 15198345. Note: this pipe does not include a WCFab badge.
Features
- Aluminum upper coolant pipe with semi-gloss black powder coat
- Includes silicone boots and stainless steel T-bolt clamps
- Fits 2001–2005 Silverado/Sierra 2500/3500 6.6L Duramax LB7/LLY
- Direct replacement for GM 15792832 and 15198345
- Made in the USA
Questions or need guidance for your build? Call us at 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area, offering installation and customization services. Buying 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


