-3%
Click to zoom in
SKU: WCF100420-RED
Wehrli 2006-2010 Chevrolet Silverado GMC Sierra 2500 3500 HD Duramax LBZ LMM Thermostat Housing Kit - WCFab Red
The Wehrli Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit fits 2006-2010 Duramax LBZ LMM engines in Chevrolet Silverado and GMC Sierra HD trucks. It replaces the OEM upper radiator hose crossing the driver side valve cover and the coolant return pipe with an upward forward coolant path from the thermostat. This design delivers easier access to driver side fuel system parts room for bigger aftermarket turbos and a cleaner engine bay.
Key Features
- Billet Aluminum Construction: CNC machined for strength and leak-free performance under high boost and heat
- Top Outlet Routing: Directs coolant upward and forward to eliminate cramped hoses over valve covers
- Fuel System Access: Opens space around driver side for simpler maintenance on injectors pumps and lines
- Turbo Clearance: Provides extra room for larger aftermarket turbochargers without relocation hassles
- Custom Powder Coat Finish: WCFab Red coating resists corrosion enhances engine bay style available for single CP3 setups P/N WCF100420
Product Notes
- Replaces GM part numbers 19330105 15792824 25833204 97361881
- Twin CP3 option available P/N WCF100424
- Retains OEM thermostat for straightforward coolant flow
Installation Notes
- Professional installation recommended.
- Bolts directly to factory locations no cutting or drilling required
- Includes all necessary O-rings gaskets and hardware for secure fit
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Chevrolet | Silverado 2500 HD | LS |
| 2006-2010 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2010 | Chevrolet | Silverado 2500 HD | LTZ |
| 2006-2010 | Chevrolet | Silverado 2500 HD | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LS |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LT |
| 2007-2010 | GMC | Sierra 2500 HD | WT |
| 2007-2010 | GMC | Sierra 3500 HD | SLE |
| 2007-2010 | GMC | Sierra 3500 HD | SLT |
| 2007-2010 | GMC | Sierra 3500 HD | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | WT |
| 2006 | Chevrolet | Silverado 3500 | LS |
| 2006 | Chevrolet | Silverado 3500 | LT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
| 2007-2010 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2010 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2010 | Chevrolet | Silverado 3500 HD | WT |
| 2007-2010 | GMC | Sierra 2500 HD | SLE |
| 2007-2010 | GMC | Sierra 2500 HD | SLT |
Why Choose Wehrli?
- Leaders in Duramax performance parts with billet designs built for racing and daily drivers
- Every component CNC machined in-house for exact fit and flow
- Trusted by diesel builders for reliability in high-horsepower applications
Frequently Asked Questions
-
Q: Will this kit fit both LBZ and LMM Duramax engines?
A: Yes it bolts on to all 2006-2010 6.6L Duramax LBZ and LMM without modifications -
Q: What material and finish does it use?
A: Billet 6061-T6 aluminum with durable WCFab Red powder coat for heat and corrosion resistance -
Q: Is special hardware needed for install?
A: No kit includes all O-rings fittings and bolts reuses OEM thermostat installs in under 1 hour with basic tools
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-lined box 12 x 10 x 6 inches
- Weight: 4.5 lbs
Cooling
Shop performance cooling parts at Black Ops Auto Works for premium radiators, thermostat housings, thermostats, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, water pumps, and thermal management upgrades for street, track, towing, diesel, and high-horsepower builds. Whether you are trying to control engine temps, improve reliability, or support demanding performance use, this collection is built around proven cooling-system upgrades for serious enthusiasts. Shop Cooling Parts by Category Browse automotive cooling system components across key product categories, including: Radiators Coolant reservoirs and expansion tanks Thermostat housings and thermostats Radiator hose kits and silicone coolant hoses Oil coolers and oil cooler accessories Transmission coolers Coolant bypass kits and coolant filters Fans and shrouds Radiator caps Water pumps Radiator shrouds, radiator stays, and cooling plates Thermal wrap, thermal tape, an...
View Cooling Products
Engine
This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...
View Engine Products
Thermostat Housings
Welcome to our exclusive Thermostat Housings collection! Here, you'll find a wide range of products designed to keep your thermostat protected and functioning optimally. Why Choose Our Thermostat Housings? Durability: Crafted from high-quality materials to withstand various environmental conditions. Compatibility: Designed to fit most standard thermostat models. Easy Installation: User-friendly designs that allow for quick and hassle-free setup. Stylish Options: Available in various styles and colors to complement your home decor. Shop Our Top Picks Browse through our top-rated thermostat housings: Premium Thermostat Housing Eco-Friendly Thermostat Housing Smart Thermostat Housing Designer Thermostat Housing Get Started Today! Upgrade your heating and cooling system with our Thermostat Housings. Shop now and experience quality and efficiency like never before!
View Thermostat Housings ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
Ralph J.
RHO Small Grille Badge
Looks as good as it fits
Looks as good as it fits,
zachary d.
Seibon 70-73 Datsun 240Z OE Carbon Fiber Hood
Nothing like it
I love it great sound and response
Luis P.
Legmaker Dodge Durango HEMI Short Ram CAI 2011-Present 5.7L
Car totally diferent with the whole kit
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Ding D.
2015-2023 Dodge Charger Carbon Fiber Wind Splitters
Fantastic emblem! Exactly what I was looking for
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Jacobus S.
Direct Connection Black Metallic Fender Badge
Worked great for my aftermarket hood on my Chrysler 2023 300C
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Robert G.
Windshield Washer Squirter Relocation Kit Universal
Easy to install and makes car sound even better
Easy to install and makes car sound even better love the winn
Tracy H.
Legmaker Challenger/Charger Hellcat Demon & Redeye Air Intake
Awesome customer support
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
Anonymous
Swift Spec-R Lowering springs Jeep Grand Cherokee 2011-2021
100/100! perfect CF crafted cold air intake for 6
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
srt.boizzz
Legmaker 392 TH Short Ram Jeep Grand Cherokee SRT 2012-2021
