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222-5926 Ex630781 Fuel Injector for Cat 3126B 3126E C7 Medium-duty trucks
| MOQ: | 1 pieces |
| Price: | US $234.32-254.32 |
| OE No. | 222-5926 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
Part Application Details (222-5926)
Key Specifications
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Part Number: 222-5926 / 2225926
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Interchange Part Numbers: 10R-0781, 10R0781, EX630781
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Part Name: Fuel Injector / Diesel Injector
Engine & Vehicle Fitment
| Attribute | Application Details |
| Compatible Engines | Cat (CAT) 3126B, 3126E, C7 (7.2L) |
| Compatible Equipment/Vehicles | Medium-duty trucks, freightliners, school buses, and various CAT industrial/construction equipment equipped with the above engines. |
| Year Range | 1995 - 2004 |
Wuhan Jinhong Auto Parts Co., Ltd. is a manufacturer and exporter of common rail fuel injectors integrating manufacturing,processing and R & D.
Our factory has a complete and scientific management system and professional product development team, products have been advancing with The Times, quality is also constantly improving, product quality and service have been widely recognized by the industry. Our company has its own factory, combined with the sales model of trade factory, we can provide customers with a full range of services. In addition, our company has international logistics partners to reduce transportation costs for customers. Our company is a leading manufacturer and supplier of Marine parts and auto parts in China. At the same time, we have established partnerships with hundreds of factories specializing in the production of various high-quality auto parts.
Our goal is to provide the best service at the best price, your satisfaction is our best return. Look forward to working with you. Welcome friends from all walks of life to visit, guidance and business negotiations.
Frequently Asked Questions (FAQ)
Q1: What engines and vehicles is the 222-5926 injector compatible with?
A: This injector is designed for (CAT) 3126B, 3126E, and C7 (7.2L) diesel engines. These engines are commonly found in medium-duty trucks, freightliners, school buses, dump trucks, and various CAT industrial or construction machinery manufactured between 1995 and 2004.
Q2: What are the interchangeable part numbers for 222-5926?
A: It directly replaces or interchanges with the following part numbers:
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CAT OEM: 222-5926, 2225926
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CAT Remanufactured: 10R-0781, 10R0781
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Other Aftermarket/Reman Codes: EX630781, 0R9348, 198-6610, 222-5956
Q3: Do I need to program or code these injectors after installation?
A: Yes. CAT C7 and later 3126 engines utilize Injector Trim Codes (also known as CD files or calibration codes). You must program these specific codes into the engine control module (ECM) using a diagnostic tool like CAT Electronic Technician (ET) to ensure proper fueling, smooth idling, and optimal performance.
Q4: Is this a HEUI injector or a Common Rail injector?
A: The 222-5926 is a HEUI (Hydraulically Actuated Electronically Controlled Unit Injector). It relies on high-pressure engine oil—not a high-pressure fuel rail—to actuate the injection process.
Q5: What are the common symptoms of a failing 222-5926 injector?
A: If your injectors are wearing out or clogged, you will typically notice:
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Hard starting or long cranking times (especially when the engine is hot)
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Engine misfires, rough idling, or excessive vibration
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Black or white smoke from the exhaust
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A noticeable drop in fuel economy and engine power
