3 inch Drivers Cold Side Intercooler Pipe

Features:

• Fits 2003–2007 Dodge 5.9L Cummins trucks
• 3 inch mandrel bent aluminum construction
• Replaces factory plastic cold side pipe
• Includes high-strength silicone boots
• Stainless steel T-bolt clamps included
• Eliminates common OEM boost leaks
• Works with OEM intercooler and intake horn
• No tuning or custom work required
• Direct bolt-on installation for stock trucks
• Durable powder coat finish in custom colors
• Supports higher boost levels reliably
• Matches with 3 inch passenger side pipe

Stop Chasing Boost Leaks And Start Building Real Power

If you’ve been dealing with frustrating boost leaks or looking to prep your 5.9L Cummins for more power, upgrading the factory cold side intercooler pipe should be high on your list. The Wehrli 3 inch Driver's Cold Side Intercooler Pipe is a simple but impactful upgrade that replaces the weak, leak-prone plastic OEM pipe with a strong, mandrel bent aluminum setup. Not only does this give your truck the durability it needs to handle increased boost, it also comes with high-quality silicone boots and stainless steel T-bolt clamps to make sure every connection is tight and reliable. No tuning is required and you don’t need to hack up or replace anything else, this kit bolts right onto your stock truck without any drama. Plus, the powder coat finish gives it a clean look under the hood and some added protection from the elements. Whether you’re towing heavy loads or just want to keep your daily driver running strong, this intercooler pipe delivers performance without overcomplicating the install. It’s a quick win for any Cummins owner looking to boost confidence under pressure.

Engineered To Eliminate Weak Links In The Boost System

The Wehrli 100359 3 inch Driver's Cold Side Intercooler Pipe is precision-built for 2003–2007 Dodge 2500 and 3500 trucks equipped with the 5.9L Cummins engine. Designed to work with the factory intake horn and intercooler, this pipe offers a true bolt-on replacement for the factory plastic unit, which is known to fail under elevated boost pressures. Constructed from mandrel bent aluminum, the pipe maintains smooth airflow and structural integrity even in high-performance applications. It’s paired with heavy-duty silicone couplers and stainless T-bolt clamps, both of which contribute to leak-free operation even when boost levels exceed stock conditions. The powder-coated finish adds a layer of corrosion resistance while offering a custom look that blends well in any engine bay. This kit is ideal for trucks running additional power, as well as stock trucks looking to address a known reliability issue before it becomes a problem. When paired with Wehrli’s 3 inch passenger side pipe, it completes a balanced and reinforced intercooler system for your Cummins-powered truck.

Fits: 2003, 2004, 2005, 2006, 2007 Dodge 2500/3500 5.9L Cummins

Notes:

• Fits 2003–2007 Dodge 2500 and 3500 with 5.9L Cummins
• Replaces factory plastic cold side intercooler pipe
• Designed for use with OEM intercooler and intake horn
• Includes aluminum pipe, silicone boots, and T-bolt clamps
• Will install on a stock truck without additional upgrades
• No tuning or custom modifications are required
• Helps eliminate boost leaks under elevated pressure
• Ideal for trucks running more than stock boost levels
• Powder coat finish offers added corrosion resistance
• Pair with Wehrli passenger side pipe for best results