Flange Adapter HX40 to HE351
🛠️ HX40 to HE351 Turbo Flange Adapter – 4.00" to 4.375" Stainless Transition | 1" Thick
This Stainless Diesel HX40 to HE351 Flange Adapter allows you to seamlessly connect an HX40-style 4.00" downpipe to an HE351 4.375" turbo outlet—perfect for turbo swaps or custom exhaust builds on 3rd Gen Dodge Cummins trucks.
CNC-machined from high-quality steel, this 1" thick flange-to-flange adapter bridges the gap between two different turbo flange styles, making it easy to run your existing HX40 downpipe with a stock HE351 turbo or vice versa.
🚀 Key Features & Benefits:
✅ Adapts HE351 Turbo Outlet (4.375") to HX40 Downpipe (4.00")
✅ Perfect for Common Rail Cummins Turbo Swaps
✅ 1.00" Thick Flange-to-Flange Design – Provides secure, durable transition
✅ CNC-Machined Steel – Strong, warp-resistant, and weldable
✅ Eliminates the Need to Fabricate or Replace Your Entire Downpipe
📦 What’s Included:
(1) HX40 to HE351 Flange Adapter (1" Thick)
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🔥 Turbo swap made easy. Adapt your downpipe without the hassle—add this flange adapter to your build today.
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