Caterpillar original Diesel Engine Fuel Injector 254-4339 for Excavator C9, Cross Reference 254-4340, 557-7633, Replacement for 387-9432, Fits 330 E330D Common Rail original new injector
Product Details
Caterpillar C9 diesel fuel injector
,254-4339 excavator fuel injector
,330D common rail injector replacement
Caterpillar original Diesel Engine Fuel Injector 254-4339 for Excavator C9, Cross Reference 254-4340, 557-7633, Replacement for 387-9432, Fits 330 E330D Common Rail original new injector
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Fuel Type |
Diesel |
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Condition |
New, aftermarket replacement, remanufactured, OEM-type supply (options vary based on seller stock) |
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Applicable Engine |
Caterpillar / CAT C9 Series Diesel Engine |
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Injector Type |
Diesel Common Rail Fuel Injector Assembly |
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Quality Standard |
Industrial-grade precision component engineered for heavy-duty operating conditions |
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Packaging |
Neutral packing, branded packing, customized export packing (options available per order requirements) |
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Fuel System |
Common Rail Diesel Fuel System |
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OE Number |
254-4339 |
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Brand |
Caterpillar (CAT) |
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Cross Number / Universal Number |
2544339 (numeric format), CA2544339 (catalog/supplier search format) |
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Vehicle / Equipment Application |
Primarily fits Caterpillar excavator models 330D, E330D, 336, 336D, E336D; additional market-listed models 325C, 328C, 330C require compatibility verification via engine arrangement, serial number and official parts catalog |
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Application Type |
Excavator, construction machinery, heavy-duty diesel engine equipment |
Engineered for the rigorous demands of construction, quarry, mining, earthmoving and fleet maintenance operations, the 254-4339 diesel fuel injector is a purpose-built heavy-duty replacement component for Caterpillar CAT C9 series diesel engines. It carries two standardized formatting options for streamlined parts lookup: 2544339 (numeric-only format) and CA2544339 (supplier catalog search format), supporting accurate sourcing across global B2B parts platforms.
As a precision common rail fuel system component, this injector delivers accurately metered diesel fuel at the required timing, pressure and spray pattern to support proper fuel-air mixing, stable combustion and consistent engine response. It also seals the interface between the fuel system and cylinder area to prevent leakage, while helping control fuel consumption, reduce smoke output and maintain reliable power delivery under sustained heavy load.
It is primarily compatible with Caterpillar 330D, E330D, 336, 336D and E336D excavators; market-listed additional models including 325C, 328C and 330C require formal verification via engine serial number, original injector part number and official parts catalog before purchase. Flexible condition, packaging and order quantity options (including single units, 6-piece sets and bulk orders) are available to serve repair shops, distributors, fleet owners and diesel engine service centers.
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