Image coming soonWehrli 2007.5-2010 LMM Duramax Twin Turbo Style Coolant Tank 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.
Running compound or twin turbos on a 2007.5-2010 Chevrolet Silverado / GMC Sierra 2500HD/3500HD 6.6L Duramax LMM? The factory coolant tank is in the way. The Wehrli Twin Turbo Style Coolant Tank Kit (Manufacturer Part # WCF100643) relocates the reservoir to the passenger fender in fabricated aluminum, clearing the space a compound setup needs. Requires relocating the passenger battery — read the Notes.
Why Choose the Wehrli Twin Turbo Style Coolant Tank Kit?
- Built for the compound turbo build – this is not a dress-up tank. It moves the coolant reservoir out of the way so an atmospheric charger and its plumbing can live where the factory tank used to sit.
- Fender mounted – relocated to the passenger side fender rather than the OEM position.
- Fabricated aluminum – available raw for a fabricated look or powder coated to match the rest of the build.
- Complete kit – tank, low coolant sensor, cap, hoses, clamps and fittings.
- Made in the USA.
Kit Includes
- Fabricated aluminum coolant tank
- Low coolant sensor
- Cap
- Hoses, clamps and fittings
Fits These Models
2007.5, 2008, 2009 and 2010 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD with the 6.6L Duramax LMM, in twin turbo / compound applications.
Specifications
- Construction: fabricated aluminum
- Mounting: passenger side fender
- Finish: raw or custom powder coat, selected above
- Made in the USA
Key Features at a Glance
- Clears the compound turbo - the reason this tank exists.
- Fender mounted - out of the engine valley.
- Sensor, cap and fittings included - complete kit.
- Raw or powder coated - pick your finish above.
Notes
- ⚠ The passenger side battery must be relocated. This tank occupies the OEM battery position and the factory location cannot be used. Plan the battery relocation as part of the build.
- Building a single turbo truck or just want a cleaner engine bay? The OEM placement tank (WCF100646) is the part you want instead.
FASS SKU: [ADD FASS SKU]
Manufacturer Part #: WCF100643
Questions? We’re Here to Help.
Planning a compound turbo build? Contact FASS Motorsports and we’ll help you spec it:
Phone: 636-429-7020
Email: info@fassmotorsports.com
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 2007, 2010 | Chevrolet Silverado 2500 HD |
| 2007, 2010 | Chevrolet Silverado 3500 HD |
| 2007, 2010 | GMC Sierra 2500 HD |
| 2007, 2010 | GMC Sierra 3500 HD |
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.
