Wehrli 20-26 Chevy 2500HD/3500HD GMC 2500HD/3500HD 6.6L Duramax L5P 3" Driver Side Intercooler Pipe Kit
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Why Choose the WCFab 3" Driver Side Intercooler Pipe Kit?
- High Flow 3" Design – Replaces the restrictive OEM two-piece intercooler pipe design with a one-piece 3" high-flow pipe for improved airflow and durability.
- Increased Boost Reliability – Upgraded silicone boots withstand higher pressure and temperatures than factory boots to help prevent failures.
- Heavy Duty Construction – Designed to provide improved reliability over the factory intercooler piping system.
- Eliminates Factory Boot Failures – Helps reduce the possibility of blown factory boots during demanding driving conditions.
- Direct Bolt-On Upgrade – Installs on stock trucks with no tuning or additional modifications required.
- Stock Truck Compatible – Designed specifically for 2020-2026 L5P Duramax applications.
Kit Includes
- 3" high flow driver side intercooler pipe
- Upgraded silicone boots
Installation Highlights
The WCFab 3" Driver Side Intercooler Pipe Kit is a direct bolt-on replacement for the factory two-piece intercooler pipe design. No tuning is required, and the kit installs on stock trucks without additional modifications.
Fits These Models
2020-2026 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD equipped with the 6.6L L5P Duramax engine.
Specifications
- Pipe Diameter – 3"
- Design – One-piece high flow intercooler pipe
- Replacement GM Part Numbers – 84660608, 84870726
Key Features at a Glance
- 3" High Flow Pipe - Replaces the restrictive factory two-piece design.
- Upgraded Silicone Boots - Handles increased pressure and temperature compared to factory boots.
- Boost Leak Protection - Helps prevent blown intercooler boots and lost boost pressure.
- No Tuning Required - Installs on stock trucks without calibration changes.
- Direct Fit Installation - Designed specifically for L5P Duramax applications.
Notes
- Fits stock trucks with no additional modifications or upgrades required.
- MPN: Not provided.
Questions? We’re Here to Help.
Have questions about upgrades for your vehicle? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
