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Turbocharger Kit 4309142 49389-03520 for Cummins Engine QSB4.5 CM2250 EC

Turbocharger Kit 4309142 49389-03520 for Cummins Engine QSB4.5 CM2250 EC

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Product Details

Turbocharger Kit 4309142 49389-03520 for Cummins Engine QSB4.5 CM2250 EC

Replacement Part Number:
4309142RX, 4309142NX, 4309142, 5287215, 5291161, 5300545, 5300976, 4938903520, 4938903560, 4938903620, 49389-03520, 49389-03560, 49389-03620, 49T8903560, 49T89-03560

Fit For Cummins Engine: QSB4.5 CM2250 EC

Product Highlights
Brand: FridayParts
Compatible Engine Brand: For CUMMINS
Engine Number: QSB4.5 CM2250 EC
Replacement Part Number: 4309142, 4309142NX, 4309142RX, 49389-03520, 49389-03560, 49389-03620, 5287215, 5291161, 5300545, 5300976, 4938903520, 4938903560, 4938903620, 49T89-03560, 49T8903560
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Matthew Mick
Reviewed on 24/10/2025
Excellent Fit, Smooth Performance!

Installed this turbo kit on my Cummins QSB4.5, and it was a perfect fit. Boost is smooth, engine runs stronger, and installation was straightforward with everything included. The parts feel solid and well-made. Definitely a hassle-free way to bring your engine back to life!

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