Pay in installments of $39.99 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
Promo Codes Available:
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
4.5 ★★★★★
Based on 7 reviews
Sort
Product Reviews
★★★★★ 5
Made for aggressive chewers
Size: Small (Pack of 1)
My aggressive chewers are obsessed. This is one of the only chew toys that actually lasts for them. Always have to buy 2 so they each have their own
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
★★★★★ 5
My dogs love these sticks!
Size: Large (Pack of 1)
My dogs love these sticks! We buy them constantly because they chews on them daily and must stash them all over the house.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 3
Not interested
Size: Large (Pack of 1)
My dog is not very interested in it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
★★★★★ 5
Excellent dog chew
Size: Small (Pack of 1)
Our dog loves this and uses it everyday. Still going strong 3 months later.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 5
My 2 German shepherds love these good quality last a good bit
Size: Large (Pack of 1)
I buy these for my 2 German shepherds. My male is a heavy chewer and he will spend time with this everyday until he starts to wear it down or makes it into a makeshift shank and I replace it
Last about 3-4 months for aggressive chewers. Highly recommend (keeps them from chewing my stuff)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026