222-5966 Ca-terpillar Diesel Fuel Injector
Product Details
| Part Number: | 222-5966 | Product Type: | Diesel Fuel Injector |
|---|---|---|---|
| Compatible Engine: | Ca-terpillar 3126B, 3126E, C7 | Application: | Truck, Marine, Industrial & Machinery |
| Supply Option: | Brand New Or Remanufactured | Warranty Period: | 12 Months |
| Highlight |
Caterpillar diesel fuel injector,Caterpillar fuel injection system,222-5966 Caterpillar injector |
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Product Description
222-5966 HEUI Fuel Injector for Ca-terpillar 3126B, 3126E and C7 Diesel Engines
222-5966 Fuel Injector is a hydraulic electronic unit injector (HEUI) designed for selected Ca-terpillar 3126B, 3126E and C7 diesel engine applications. It uses high-pressure engine oil and electronic control to pressurize, meter and inject fuel accurately, supporting stable combustion, efficient fuel use and reliable engine performance.
It is suitable for selected commercial trucks, marine equipment and industrial applications powered by compatible Ca-terpillar 3126B, 3126E or C7 engines. Exact compatibility depends on the engine serial number, power rating and injector calibration. Please verify the original injector number, engine serial number, arrangement number and equipment model before ordering.
222-5966 HEUI Fuel Injector is designed as a direct-fit replacement for the correct engine configuration. Its commonly associated Cat Reman reference is 10R-0781, with 197-7107, 198-6605, 199-6065, 222-5926 and EX630781 frequently listed as replacement or cross-reference numbers. Professional installation, replacement of all injector seals and any required ECM calibration should follow the applicable engine service manual.
Manufactured with wear-resistant precision components and a reliable sealing structure, this injector withstands continuous vibration and demanding working conditions. It helps address hard starting, unstable idle, power loss, excessive fuel consumption and black smoke.
Every Fuel Injector we supply undergoes professional bench testing. Injection quantity, spray pattern, sealing performance and operating stability are inspected to ensure reliable fuel delivery and consistent engine performance.
Q1: What is the 222-5966 Fuel Injector?
A: The 222-5966 is a HEUI hydraulic electronic unit injector designed for selected Ca-terpillar 3126B, 3126E and C7 diesel engines.
Q2: What equipment uses 222-5966?
A: It is suitable for selected commercial trucks, marine equipment and industrial applications powered by compatible Ca-terpillar 3126B, 3126E or C7 engines. Exact compatibility must be verified before ordering.
Q3: What are the cross-references for 222-5966?
A: Its commonly associated Cat Reman reference is 10R-0781, with 197-7107, 198-6605, 199-6065, 222-5926 and EX630781 listed as replacement or cross-reference numbers. Compatibility must be confirmed using the original injector number, engine serial number and arrangement number.
Q4: Does 222-5966 require electronic programming?
A: Electronic programming is not always required. However, the ECM injector calibration settings should be checked, and installation must follow the applicable engine service manual.
Q5: Is the injector tested before shipment?
A: Yes. Each injector is professionally bench-tested for fuel delivery, injection response, sealing performance and operating stability before shipment.
Q6: Is 222-5966 available new or remanufactured?
A: We can supply new aftermarket and remanufactured replacement options, subject to compatibility confirmation and stock availability. All supplied injectors include a 12-month warranty.
Ca-terpillar Mechanical Fuel Injector Application Table
| Serial No. | Ca-terpillar OE Part Number | Cross-Reference Numbers | Compatible Engine | Compatible Vehicles & Equipment | Injector Type | Injection System | Unit Weight | Production Year Range | Connector Type | Quality Options | Installation Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 218-4109 | 0R-9349; 10R-9238; 126-0499; 131-7150; 164-3355; 169-7411; 173-4059; 173-9267; 173-9268; 196-1401; 222-5967; EX639349 | 3126 / 3126B / 3126E | Selected commercial trucks and industrial equipment powered by compatible 3126-series engines | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Confirm the original injector number, ESN and arrangement number. Replace all seals and follow the applicable service manual. |
| 2 | 222-5926 | 10R-0781; 197-7107; 198-6605; 199-6065; 222-5966; EX630781 | 3126B / 3126E / C7 | Selected 3126E truck engines and 3126B/C7 marine applications | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Verify the ESN and injector family. Do not mix different injector calibration families within one engine set. |
| 3 | 222-5963 | 10R-1262; 203-3771; 204-6714; EX631262 | 3126 / 3126B / 3126E | Selected 322C/325C excavators, M325C material handlers, 950G II/962G II wheel loaders, 570B/580B wheel harvesters, trucks and industrial equipment | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Confirm the original injector number, ESN and arrangement number. Check ECM injector calibration settings where applicable. |
| 4 | 222-5965 | 0R-9348; 145-9360; 155-1819; 171-9710; 173-1012; 173-4566; 173-9379; 188-1320 | 3126B / 3126E | Selected 325C/325CL/325CLN excavators and compatible truck or industrial applications | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Confirm the ESN and arrangement number. Install new O-rings and sealing washer and follow the specified torque procedure. |
| 5 | 222-5966 | 10R-0781; 197-7107; 198-6605; 199-6065; 222-5926; EX630781 | 3126B / 3126E / C7 | Selected 3126E truck engines and 3126B/C7 marine applications | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Verify the ESN and injector family. Do not mix different injector calibration families within one engine set. |
| 6 | 222-5967 | 0R-9349; 10R-9238; 126-0499; 131-7150; 164-3355; 169-7411; 173-4059; 173-9267; 173-9268; 196-1401; 218-4109; EX639349 | 3126 / 3126B / 3126E | Selected 3126-series truck engines and compatible industrial engine applications | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Confirm the original injector number, ESN and arrangement number. Replace all seals during installation. |
| 7 | 222-5968 | 10R-1306; 173-3922; 183-6797 | 3126B / C7 | Selected marine engines and marine equipment powered by compatible 3126B or C7 engines | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Marine calibration is application-specific. Confirm the ESN, arrangement number and original injector number. |
| 8 | 222-5972 | 0R-9350; 10R-9239; 141-7837; 169-7410; 173-1013; 173-9272; 196-4229; EX639350 | 3126 / 3126B / 3126E | Selected commercial truck engines powered by compatible 3126-series engines | HEUI hydraulic electronic unit injector | HEUI fuel injection system | Approx. 1.0 kg; confirm by actual unit | Application-dependent; verify by ESN | 2-pin solenoid connector; confirm by actual unit | Brand-new / Remanufactured | Confirm the original injector number, ESN and arrangement number. Check injector calibration and replace all seals. |
Product Highlights
222-5966 HEUI Fuel Injector for Ca-terpillar 3126B, 3126E and C7 Diesel Engines 222-5966 Fuel Injector is a hydraulic electronic unit injector (HEUI) designed for selected Ca-terpillar 3126B, 3126E and C7 diesel engine applications. It uses high-pressure engine oil and electronic control to ...
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