Wehrli Custom Fabrication 2007.5–2010 LMM Duramax Coolant Bypass/Relocation Fitting (WCF100798)

🚫 No More Clearance Issues – WCFab Coolant Bypass Fitting for LMM Duramax 🔧

Fix fitment headaches on your 2007.5–2010 LMM with this simple, no-tune-needed solution.

The WCF100798 Coolant Bypass/Relocation Fitting from Wehrli Custom Fabrication solves one of the most common problems when upgrading to aftermarket up-pipes or manifold kits on your LMM Duramax. This CNC-machined fitting reroutes the factory coolant line for clean, hassle-free clearance.

✅ Key Features:

🚚 Designed for 2007.5–2010 LMM Duramax
Direct-fit solution for LMM trucks running aftermarket exhaust manifolds or up-pipe kits.

🧯 Bypass OEM Interference
OEM rear coolant line interferes with upgraded piping — this fitting fixes that instantly.

🧰 No Tuning Required
Just bolt it on and go. No tune, no codes, no worries.

🔩 Driver-Side Rear Adapter Plate Fitment
Mounts directly where the OEM coolant fitting was located on the driver-side rear of the engine.

🛠️ Clean, Professional Fitment
A must-have upgrade for any performance Duramax build.

📦 Product Details:

• Part #: WCF100798

• Brand: Wehrli Custom Fabrication

• Finish: Raw or anodized (depends on current stock)

• Install Time: Under 30 minutes with basic tools

🔥 In Stock Now | Built for Real-World Duramax Performance | Backed by Trusted WCFab Engineering