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Piston 4345773 for Cummins Engine K19 K38 K50

Piston 4345773 for Cummins Engine K19 K38 K50

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SKU#: FPPX2511421
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Product Details

Piston 4345773 for Cummins Engine K19 K38 K50

Replacement Part Number: 4345773

Fit For Cummins Engine: K19, K38, K50

Product Highlights
Brand: FridayParts
Compatible Engine Brand: For CUMMINS
Engine Number: K19, K38, K50
Replacement Part Number: 4345773
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Top Reviews

user
Patrick Campbell
Reviewed on 24/11/2025
Solid Fit, Runs Smooth!

Installed this piston in my K50 rebuild, and it lined up perfectly. Engine fires up nice and smooth, no weird noises. Feels heavy-duty and well-made — exactly what you want.

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