Description
Description
Rebuilt fuel injector for Cummins M11 engines.
Each injector is professionally rebuilt, ultrasonically cleaned, calibrated, and flow tested to OEM Cummins specifications. Every injector is verified before shipping to ensure proper fuel delivery, reliable engine performance, and long service life.
This injector is engineered to:
- Restore precise fuel atomization
- Improve throttle response and power delivery
- Reduce excessive smoke and rough idle
- Eliminate common injector performance issues
- Support consistent combustion and fuel efficiency
Designed for heavy-duty diesel applications, this injector helps restore engine performance while maintaining OEM fuel flow and spray pattern standards.
This injector replaces OEM Cummins injector part number 3083863 and compatible superseded references. Fitment and calibration are confirmed by engine serial number (ESN) before shipment.
Common Cross References
- 3083863
- 3083863RX
- 3083863PX
- EX63083863
(Exact injector supplied depends on CPL and ESN — fitment is verified before shipping.)
Compatible Engines
- Cummins M11
- Cummins M11 CELECT
- Cummins M11 CELECT Plus
Commonly used in heavy-duty truck, vocational, agricultural, and industrial applications.
Commonly installed in:
- Freightliner FLD Series
- Kenworth T600 / T800
- Peterbilt 357 / 377
- International 9000 Series
- Various industrial and vocational equipment applications
Need Fitment Confirmation?
📞 Call or text (909) 639-4195
Have your engine serial number (ESN) ready and we’ll confirm the correct calibration before you order.
When your truck is down, speed matters. We verify fast and ship fast.
Why Choose This Injector?
- Rebuilt to OEM Cummins fuel-flow and spray-pattern specifications
- Fully bench-tested for pressure, leakage, and performance
- Restores horsepower, fuel efficiency, and smooth idle
- Built for long-term heavy-duty reliability
- Tested, verified, and engineered for uptime
Core Policy
A core refund is available when your old injector is returned.
Cores must be received within 30 days of purchase to qualify.
Shipping & Support
- Free UPS Ground shipping
- Expedited shipping available
- Backed by direct Samperio Turbo Rebuild technical support
You’ll speak to diesel experts, not call centers. Reliable support from people who know heavy-duty engines.





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