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Oil Pump 5304284 for Cummins Engine QSB3.3

Oil Pump 5304284 for Cummins Engine QSB3.3

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Product Details

Oil Pump 5304284 for Cummins Engine QSB3.3

Replacement Part Number: 5304284

Fit For Cummins Engine: QSB3.3 CM2250 B137, QSB3.3 CM2250 EC

Product Highlights
Brand: FridayParts
Compatible Engine Brand: For CUMMINS
Engine Number: QSB3.3 CM2250 EC, QSB3.3 CM2250 B137
Replacement Part Number: 5304284
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Andrew French
Reviewed on 23/10/2025
Smooth and Reliable!

Replaced the oil pump on my Cummins QSB3.3, and it works perfectly. Oil pressure is steady, and the engine runs nice and smooth—no weird noises or drops. Fit was spot-on, and installation was straightforward. Feels solid and built to last. Definitely a great replacement if your engine needs a reliable pump!

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