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SKU #: WCF-WCF100024
MPN #: WCF100024
Wehrli Custom Fab CP3 Block Off Plate 01-16 GM 6.6L Duramax
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Description
Complete your Duramax fuel system upgrade with the WCFab Duramax CP3 Block Off Plate. Designed for GM 6.6L Duramax diesel engines, this billet aluminum plate seals the factory valley CP3 pump location when the original pump is removed for a CP3 relocation, dual fueler setup, or CP3 conversion build.
Precision CNC-machined from high-quality billet aluminum, this block off plate provides a secure and leak-free seal while maintaining a clean, professional engine bay appearance. The durable black anodized finish with engraved logo resists corrosion and matches other aftermarket diesel performance components under the hood.
Essential for CP3 Conversion Builds
When upgrading or relocating the factory CP3 fuel pump, the original valley location must be properly sealed to prevent leaks and contamination. The WCFab CP3 Block Off Plate provides a precise fit to securely close this opening while protecting the fuel system and keeping the engine valley clean.
Its billet aluminum construction ensures long-term durability even in high-heat diesel engine environments, making it a reliable solution for performance builds and fuel system upgrades.
FEATURES & BENEFITS:
- CNC-machined billet aluminum block off plate
- Durable black anodized finish with engraved logo
- Includes O-ring seal for leak-free installation
- Designed to seal the factory valley CP3 pump opening
- Ideal for dual fueler kits, CP3 relocations, or CP3 conversion builds
- Maintains a clean and professional engine bay appearance
About Wehrli Custom Fabrication
Born from a garage dream in Sandwich, Illinois, and now headquartered in DeKalb, Illinois, Wehrli Custom Fabrication (WCFab) has earned a formidable reputation in the diesel performance world. From its hands-on beginnings to its expansion into a team of 50-plus skilled builders, WCFab continues to elevate diesel upgrades, even as the brand evolves into fabrication and powder coating excellence.
At its core, Wehrli is dedicated to powering Duramax, Powerstroke, and Cummins trucks with rugged, high-performance parts that meet the real-world demands of hauling, towing, and racing. Every product is proudly Made in the USA, from turbo kits and cold air intakes to heavy-duty Allison transmission builds capable of handling up to 750hp, thoroughly crafted in a climate-controlled clean room.
Whether you’re upping airflow with precision CNC-machined intakes and intake horns, clearing the engine bay with billet block-off plates, or commanding raw transportation power with a 750+hp Allison transmission, Wehrli’s work is synonymous with resilience and peak performance. Products like their L5P Duramax high-flow turbo intake horn boast a 27% increase in flow, proving that function and form can coexist beautifully.
Customer support is a serious affair at WCFab they stand firmly behind their fits and finishes Led by the Wehrli brothers and a crew fueled by diesel passion, the brand’s mission is clear: deliver top-tier craftsmanship, unmatched performance, and relentless customer service.
Wehrli Custom Fabrication—where diesel dreams are forged into reality, in metal you can feel and performance you can trust.
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