Description
Description
Rebuilt fuel injector for Caterpillar C10 and C12 engines.
Each injector is professionally rebuilt, ultrasonically cleaned, calibrated, and flow tested to OEM Caterpillar 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This injector replaces OEM Caterpillar injector part number 10R0963 and compatible superseded references. Fitment is verified before shipment.
Common Cross References
- 10R0963
- 0R8479
- OR8479
- 1278210
- 127-8210
(Exact injector supplied depends on engine serial number and application — fitment is verified before shipping.)
Compatible Engines
- Caterpillar C10
- Caterpillar C12
- Caterpillar C12 ATAAC
Commonly used in heavy-duty highway trucks, vocational trucks, construction equipment, agricultural equipment, marine applications, and industrial power units.
Commonly installed in:
- Peterbilt 357
- Peterbilt 378
- Kenworth T800
- Freightliner FLD
- Western Star 4900
- Various Caterpillar-powered industrial and marine applications
Need Fitment Confirmation?
📞 Call or text (909) 639-4195
Have your engine serial number ready and we’ll confirm the correct injector before you order.
When your equipment is down, speed matters. We verify fast and ship fast.
Why Choose This Injector?
- Rebuilt to OEM Caterpillar 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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