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Caterpillar original Diesel Fuel Injector 10R-0781 10R-0782 for Caterpillar 3126B 3126E C7 Engine 20R-8758, Excavator Construction Machinery Spare Parts Replacement for 10R-9239 original new injector
| Brand Name: | CATERPILLA |
| Model Number: | 10R-0781 |
| MOQ: | 1 |
| Price: | $299-$448 |
| Packaging Details: | Original Packing |
| Payment Terms: | T/T, Western Union |
Caterpillar Diesel Fuel Injector 10R-0781
,CAT Diesel Injector for 3126B Engine
,Excavator Construction Machinery Spare Parts
Caterpillar original Replacement for OEM 10R-0781 Fuel Injector Injection Valves for 3412 Truck Engine Diesel Fuel System Parts, for heavy duty diesel engine application original new injector
Fuel Type | Diesel |
Condition | OEM Reman / Replacement Available |
Applicable Engine | CAT 3412, CAT 3412B, CAT 3412C, CAT 3412D, CAT 3412 Industrial Engine, CAT 3412 Marine Engine, CAT 3412 Generator Engine, CAT 3412 Power Unit, CAT 3412 Oilfield Engine |
Injector Type | Diesel Fuel Injector Assembly |
Quality Standard | OEM Specification, Factory Tested |
Packaging | N/A |
Fuel System | Mechanical Unit Injector System |
OE Number | 10R-0781 (alternate format: 10R0781) |
Brand | Caterpillar (CAT) |
Cross Number / Universal Number | 0R3639 (service exchange format: 0R-3639), 4P9830 (alternate format: 4P-9830) |
Vehicle / Equipment Application | CAT generator sets, industrial generator packages, emergency backup power systems, data center power units, utility power generation systems, industrial power units; marine propulsion engines, tug boats, fishing vessels, cargo ships, offshore support vessels, marine auxiliary engines; mining trucks, drilling equipment, crusher systems, power modules, mobile mining equipment; oilfield equipment, heavy-duty construction equipment |
Application Type | Heavy-duty industrial, power generation, marine, mining, oilfield and construction applications |
Precision-engineered for Caterpillar’s 3412 series heavy-duty diesel engine platform, the 10R-0781 fuel injector assembly is a factory-spec component part of the brand’s official remanufactured injector program. It serves as a direct, form-fit-function replacement for legacy injector assemblies across all 3412 engine configurations, including 3412, 3412B, 3412C, and 3412D variants built for industrial, marine, generator set, power unit, and oilfield use. Its application scope covers core heavy-duty sectors including power generation, marine propulsion, mining, oilfield operations, and construction.
Built to meet strict Caterpillar OEM specifications, the 10R-0781 features precision-machined internal components and factory calibration to deliver accurate fuel metering and consistent injection timing. Its high-pressure delivery design and hardened, corrosion-resistant parts enable fine fuel atomization, improved combustion efficiency, reduced fuel consumption and exhaust emissions, enhanced power output, and extended service life even under severe-duty operating conditions.
Every 10R-0781 injector undergoes factory testing to validate performance and adherence to OEM tolerance controls, with cross-reference support for legacy part numbers 0R3639 and 4P9830. As calibration codes and compatibility vary by engine arrangement, serial number prefix, and emissions rating, verification via engine serial number (ESN) is strongly recommended prior to ordering to ensure proper fit and reliable long-term operation.
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Contact Detail:
ADD:Huangpu Machinery City, No.585-A, No.138, Southeast Road, Huangpu District, Guangzhou City,
Guangdong Province Tel:+86 020 88557755
Cellphone:+86 19959162250 WhatsApp:+86 19959162250
Email:2209396088@qq.com
