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Caterpillar original Fuel Injector 20R-1270 386-1758 386-1754 for Caterpillar Generator Set Marine 3508B 3512B 3516B, Replacement for OEM 10R-3255 original new injector
| Brand Name: | CATERPILLA |
| Model Number: | 386-1758 |
| MOQ: | 1 |
| Price: | $299-$515 |
| Packaging Details: | Original Packing |
| Payment Terms: | T/T, Western Union |
Caterpillar 20R-1270 fuel injector
,Caterpillar 3508B 3512B 3516B injector
,OEM 10R-3255 replacement injector
Caterpillar original Fuel Injector 20R-1270 386-1758 386-1754 for Caterpillar Generator Set Marine 3508B 3512B 3516B, Replacement for OEM 10R-3255 original new injector
Fuel Type | Diesel |
Condition | New (Original Equipment Replacement) |
Applicable Engine | CAT 3512B / 3512B HD / 3512B Marine, CAT 3512C / 3512C HD, CAT 3516B / 3516C, CAT 3508B / 3508C, and selected CAT 3512E industrial applications |
Injector Type | Diesel Fuel Injector Assembly |
Quality Standard | Manufactured to OEM specifications |
Packaging | Please contact us for packaging details |
Fuel System | Direct Injection |
OE Number | 386-1758 (3861758) |
Brand | Caterpillar (CAT) |
Cross Number / Universal Number | 10R-0957 (Reman), 330-1758, 336-1758, 212-8475, 387-9433, 392-0204 |
Vehicle / Equipment Application | CAT generator sets, marine propulsion engines, mining trucks, drilling equipment, offshore platforms, locomotive support systems, industrial pumping stations |
Application Type | Power generation, marine propulsion, mining, oil & gas, industrial equipment |
Consistent, precisely metered fuel delivery is what keeps a Caterpillar 3500 Series engine productive under continuous heavy load. The CAT 386-1758 fuel injector (OEM 3861758) is a heavy-duty diesel injection component engineered for CAT 3512B, 3512C, 3516B, 3516C, 3508B, and 3508C engines, including HD and marine configurations. It is widely deployed in generator sets, marine propulsion systems, mining trucks, drilling equipment, offshore platforms, and industrial pumping stations.
As a precision metering and atomization device, the injector accumulates high-pressure diesel within its chamber and releases a finely atomized spray into the combustion chamber at exactly calculated timing. This controlled injection event improves thermal efficiency, lowers fuel consumption, increases power output, and reduces exhaust smoke and particulate formation, while also supporting improved cold-start performance. Manufactured to OEM specifications, the 386-1758 is built to withstand extreme operating temperatures, high injection pressures, and demanding industrial environments.
Under normal operating conditions, service life may exceed 10,000-15,000 operating hours when supported by clean, high-quality diesel fuel, scheduled filter replacement, and periodic injector balance testing. The injector cross-references reman number 10R-0957 and alternative OEM numbers 330-1758, 336-1758, 212-8475, 387-9433, and 392-0204; because fitment can vary by engine serial number, arrangement, and emissions level, buyers should always confirm compatibility by ESN before ordering. Contact us today for quotations, stock availability, and technical support.
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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
