Upper Coolant Pipe Kit

Features:

• Replaces factory rubber upper radiator hose
• Fabricated aluminum construction for durability
• Powder coated in custom color options
• Includes high-quality silicone boots
• Stainless steel T-bolt clamps included
• Improves engine bay appearance
• Fits with OEM GM radiator
• Easy installation with basic hand tools
• No modifications required on stock trucks

Add More Durability to your 6.6L Duramax Build

If you're looking to clean up the clutter under the hood of your L5P Duramax, the Wehrli Upper Coolant Pipe Kit is a simple upgrade that makes a big visual and functional impact. Designed specifically for 2020–2026 Silverado and Sierra HD trucks, this kit replaces the factory rubber upper radiator hose with a precision-fabricated aluminum hard pipe that not only looks great but lasts longer. Each pipe is powder coated in your choice of color, so it blends in or stands out, depending on how you want your engine bay to look. Unlike the stock rubber hose that can sag or deteriorate over time, this hard pipe gives your cooling system a clean, high-end appearance while maintaining a strong, leak-free connection. The kit includes high-quality silicone boots and stainless steel T-bolt clamps for a secure, durable fit.

Fits: 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2020–2026 Silverado/Sierra 2500HD & 3500HD with 6.6L Duramax L5P.
• Direct replacement for factory rubber upper radiator hose.
• Powder-coated finish available in custom color options.
• Works with OEM GM radiator, no modifications needed.
• Includes silicone boots and stainless T-bolt clamps for a secure seal.
• Improves engine bay appearance with a clean, high-end look.
• More durable than stock rubber hose, resists sagging and wear.
• Simple install with basic hand tools; no tuning required.
• Recommended for trucks needing both performance and style upgrades.
• Built by Wehrli Custom Fab, trusted in Duramax performance parts.