Wehrli 2013-2018 6.7L Cummins Driver Side 3.5" 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.
The factory driver side charge pipe on a 2013-2018 Ram 2500/3500 6.7L Cummins is small, sharply bent and physically crushed in places. The Wehrli 3.5" High Flow Driver Side Intercooler Pipe Kit (Manufacturer Part # WCF100434) replaces it with smooth 14 gauge mandrel bent aluminum and straight silicone boots that hold real boost.
Why Choose the Wehrli Driver Side Intercooler Pipe Kit?
- Full 3.5" diameter, no dents – the OEM pipe is undersized with a flattened section; this one is round the whole way and still fits the factory location.
- Straight boots instead of angled – Wehrli deletes the angled boot at the intercooler and the long boot at the turbo. Shorter, straighter boots are the ones that stay on.
- Five-ply silicone – rated for higher pressure and temperature than the factory boots, which is where a worked 6.7L starts blowing pipes off.
- 14 gauge mandrel bent aluminum – smooth aerodynamic bends in place of the factory's sharp ones. Made in the USA.
- Fits a stock truck – installs with basic hand tools, no tuning required.
- Custom powder coat – finished in your choice of Wehrli's colors.
Kit Includes
- 3.5" driver side intercooler pipe, 14 gauge mandrel bent aluminum
- Upgraded silicone boots
- Clamps and installation hardware
Installation Highlights
Installs with basic hand tools in the factory pipe location. Compatible with stock trucks — no tuning or other modifications required.
Fits These Models
2013, 2014, 2015, 2016, 2017 and 2018 Ram 2500 and 3500 with the 6.7L Cummins.
Specifications
- Pipe diameter: 3.5"
- Construction: 14 ga. heavy duty aluminum, mandrel bent
- Boots: upgraded silicone, higher pressure and temperature rating than factory
- Shipping weight: 6.0 lbs
- Package dimensions: 24" W x 8" H x 8" L, ships in its own box
- Finish: custom powder coat, color selected above
- Made in the USA
Key Features at a Glance
- 3.5" mandrel bent aluminum - replaces the crushed factory pipe.
- Straight silicone boots - angled OEM boots deleted.
- Factory location fitment - nothing relocated.
- No tuning required - bolt on to a stock truck.
- Custom powder coat finish - pick your color above.
Notes
- ⚠ Not compatible with Banks intercoolers. If you are running a Banks unit, this pipe will not fit.
- Lead time varies by color. WCFab Red is stocked and ships in 3-5 business days. All other colors are made to order on a 10-15 business day lead time, and WCFab has flagged this part for longer than normal lead times — call us to confirm before ordering a custom color.
- The passenger (hot) side pipe is a separate part. Wehrli's Stage 1 bundle covers both sides in one kit.
FASS SKU: [ADD FASS SKU]
Manufacturer Part #: WCF100434
Questions? We’re Here to Help.
Have questions about upgrades for your 6.7L Cummins? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 2013, 2018 | Ram 2500 |
| 2013, 2018 | Ram 3500 |
Fitment is listed by year, make and model. Some applications also depend on cab, bed, drivetrain or engine — if you are not sure, call 636-429-7020 or send us your vehicle details and we will confirm before you order.

