GMC Sierra 3500 Upper Coolant Pipe - Wehrli - Sparkle Granny Smith - `20-`25
GMC Sierra 3500 Upper Coolant Pipe - Wehrli - Sparkle Granny Smith - `20-`25
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GMC Sierra 3500 Upper Coolant Pipe - Wehrli - Sparkle Granny Smith (2020-2025). This aluminum hard pipe replaces the factory rubber upper radiator hose with a durable, powder-coated upgrade.
Built for the L5P 6.6L Duramax, this direct-fit pipe is for stock trucks with the OEM GM radiator. It refreshes the engine bay and includes silicone boots with stainless steel T-bolt clamps. Installs with basic hand tools; no cutting. Replaces GM part numbers 84813629 and 85122989. Note: aftermarket radiators may cause fitment issues.
Features
- 2020-2025 GMC Sierra 3500 (L5P 6.6L Duramax)
- Fabricated aluminum upper coolant pipe
- Custom powder coat: Sparkle Granny Smith
- Silicone boots and stainless steel T-bolt clamps included
Questions? Call our Austin, TX shop at 512-982-9393 (TX) or our Los Angeles, CA area shop at 562-981-6800 (CA). We offer installation and customization at both locations.
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
Need Assistance?
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Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
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