Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Fuel Injector Kit 5579421PX/RX Compatible with Cummins X15 ISX15 QSX15 ISX12 QSK60 EnginesCondition: New Aftermarket Part Note: We recommend replacing the entire set of fuel injectors to ensure the engine's optimal performance. Due to differences in oil output and atomization concentration between genuine and aftermarket parts, they should not be mixed. Replacing the entire set of injectors helps avoid potential issues. Replacement part number: 5579421, 5579421PX, 5579421RX, 5579421NX Fit For Cummins Engine: ISX12 G CM2180 EJ, ISX15 CM2350
Condition:
New Aftermarket PartNote:
We recommend replacing the entire set of fuel injectors to ensure the engine's optimal performance. Due to differences in oil output and atomization concentration between genuine and aftermarket parts, they should not be mixed. Replacing the entire set of injectors helps avoid potential issues.Replacement part number:
5579421, 5579421PX, 5579421RX, 5579421NXFit For Cummins Engine:
ISX12 G CM2180 EJ, ISX15 CM2350 X101, QSK60 CM850 MCRS, X15 CM2350 X114B, X15 CM2350 X116B, X15 CM2350 X123B, X15 CM2350 X129B, X15 CM2450 X124B, X15 CM2450 X134B, X15, ISX15, QSX15
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 219 reviews
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Product Reviews
★★★★★ 5
easy replacement
Very good quality, perfect size and super easy replacement for my Honda Accord 2023. It is a really good valye for money. 100% recommended
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Reviewed in the United States on June 14, 2025
★★★★★ 5
Got it when they couldn't
In stock and fast shipping was the selling point. My local auto parts stores didn't have this in stock anywhere. I got it in two days and cheaper than they could get it to me. Fits great and works like it should. I'm on top of my maintenance for all my vehicles, so it will get changed on time. Life span should not be an issue.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
as good as the original.
easy to install and works as good as the original.
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Reviewed in the United States on July 13, 2025
★★★★★ 5
Don’t over pay for auto filters
Great filter for reasonable price. Great fit in vehicle
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Great price
Great price
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Reviewed in the United States on October 31, 2025