Description
Description
Rebuilt fuel injector set (6 injectors) for Caterpillar C10 and C12 engines.
Each injector in the set is professionally rebuilt, ultrasonically cleaned, calibrated, and flow tested to OEM Caterpillar specifications. Every injector is verified before shipping to ensure proper fuel delivery, balanced cylinder performance, and long-term reliability.
This injector set is engineered to:
- Restore precise fuel atomization
- Improve throttle response and power delivery
- Reduce excessive smoke and rough idle
- Eliminate common injector balance rate issues
- Support consistent fuel delivery across all cylinders
Replacing the full set helps ensure even fuel distribution throughout the engine and prevents performance imbalances caused by mismatched injectors. Many diesel technicians recommend installing injectors as a complete set to maintain consistent fuel output and optimal combustion efficiency.
This set replaces OEM Caterpillar injector part number 20R0056 and compatible superseded references. Fitment is verified before shipment.
Common Cross References
- 20R0056
- 10R1815
- 0R9858
- OR9858
- 1278230
- 127-8230
(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 set before you order.
When your equipment is down, speed matters. We verify fast and ship fast.
Why Choose This Injector Set?
- 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
- Balanced injector set for consistent cylinder performance
- Built for long-term heavy-duty reliability
- Tested, verified, and engineered for uptime
Core Policy
A core refund is available when your old injectors are 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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