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Piston 3051556 for Cummins Engine NH NT 855

Piston 3051556 for Cummins Engine NH NT 855

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Product Details

Piston 3051556 for Cummins Engine NH NT 855

Replacement Part Number: 3051556

Fit For Cummins Engine: NH 855, NT 855

Product Highlights
Brand: FridayParts
Compatible Engine Brand: For CUMMINS
Engine Number: 3051556
Replacement Part Number: NH 855, NT 855
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Kelli Manning
Reviewed on 24/11/2025
Heavy-Duty Part That Gets the Job Done

Dropped this piston into my NT855 rebuild, and it’s been rock solid from day one. Everything matched up cleanly — no weird sizing issues, no extra work needed. Once it was in, the engine fired up smooth and has been running strong ever since. The build quality feels legit, nice and sturdy, exactly what you want when you’re dealing with a big Cummins. If you’re freshening up an NH or NT855, this is one of those parts you don’t have to worry about. Would absolutely buy again for the next overhaul.

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