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Exhaust Outlet Connection 3920955 for Cummins Engine 4B3.9 6B5.9 6C8.3 G5.9 NH855 NT855

Exhaust Outlet Connection 3920955 for Cummins Engine 4B3.9 6B5.9 6C8.3 G5.9 NH855 NT855

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Product Details

Exhaust Outlet Connection 3920955 for Cummins Engine 4B3.9 6B5.9 6C8.3 G5.9 NH855 NT855

Replacement Part Number: 3920955, 3918918

Fit For Cummins Engine: 4B3.9, 6B5.9, 6C8.3, G5.9, NH855, NT855

Product Highlights
Brand: FridayParts
Compatible Engine Brand: For CUMMINS
Engine Number: NT855, 4B3.9, 6B5.9, 6C8.3, G5.9, NH855
Replacement Part Number: 3918918, 3920955
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Thomas Bridges
Reviewed on 28/11/2025
Solid Construction, No More Leaks

The flanges are thick and the casting is clean. Replaced a cracked original on our 6C8.3 engine. This one feels robust and seals perfectly with the provided gasket. Has held up well to heat and vibration. Quality is evident.

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