Product Description:

OE NO	387-9431
OE NO1	254-4330
_Material	Original new CAT INJECTOR
ENGINE	CAT engine
Car Model	CAT

1. Basic Core Parameters

Parameter Item	Specific-ation Details
Part Number	387-9431 (Genuine c-at OEM Standard Part Code)
Applicable Engine Series	c-aterpillar C7 Series Heavy-Duty Diesel Engines
Product Type	Complete Fuel Injector Assembly (Integrated Nozzle, Valve Body, Seals & Precision Internals)
Material & Craft	High-strength anti-corrosion alloy body, CNC precision grinding, mirror-finish nozzle tip, heat-resistant seals
Quality Standard	100% Factory Tested & Calibrated, Complies with c-at Original OEM Standards

2. Compatible Equipment & Applic-ation Scenarios

Equipment c-ategory	Typical Applic-ation Models
Construction Machinery	c-at Excavators, Wheel Loaders, Motor Graders, Bulldozers Equipped with C7 Engines
Mining & Quarry Equipment	Mining Trucks, Crusher Units, Portable Mining Power Modules
Industrial Power Units	Medium Industrial Generator Sets, Water Pump Units, Air Compressor Systems
Commercial Vehicles & Marine	Heavy-Duty Trucks, Marine Auxiliary Engines, Port Handling Machinery

3. Performance Advantages & Core Benefits

Performance Indic-ator	Core Value & Benefit
Fuel Atomization	Optimized multi-orifice nozzle design for ultra-fine fuel droplets, ensuring complete combustion and reduced black smoke
Injection Stability	Precise fuel metering and consistent timing, eliminates fuel dripping/leakage, prevents engine misfire and rough idle
Durability	Resists high pressure, fuel corrosion and mechanical wear, maintains stable performance in harsh outdoor environments
Energy Efficiency	Reduces fuel consumption and maintenance costs, lowers equipment downtime and improves operating economy
Emission Compliance	Minimizes particulate and exhaust emissions, meets global industrial and environmental protection standards

4. Installation & Maintenance Guidelines

Item	Operation & Maintenance Notes
Installation Requirement	Follow c-at C7 Engine Service Manual, clean fuel passages thoroughly, apply specified torque for sealing
Supporting Parts	Use genuine c-at fuel filters, gaskets and seals to avoid fuel contamination and system leakage
Service Life Extension	Use clean high-quality diesel fuel, replace filters regularly, and perform routine fuel system inspections
Post-Install Check	Inspect for fuel leaks, abnormal noise and unstable idle; calibrate injection pressure if needed

C7
10R-4761	10R-4762	10R-4763	10R-4764	10R-7221	10R-7225	172-5780	188-8739	1OR-4762
1OR-4763	20R-1260	20R-8056	20R-8057	20R-8058	20R-8059	20R-8064	20R-8066	20R-8067
20R-8069	20R-8071	20R-9079	217-2570	222-5961	235-2888	235-5261	235-9649	236-0962
238-8091	238-8901	241-3228	241-3238	241-3400	243-4502	243-4503	263-8218	268-1835
268-1836	268-1839	268-1840	268-9577	269-1839	293-4071	293-4072	293-4573	295-1408
295-1409	295-1410	295-1411	295-1412	295-9166	2OR-8071	328-2582	328-2584	328-2585
328-2586	328-2587	387-9426	387-9427	387-9428	387-9429	387-9430	387-9431	387-9441
557-7627

caterpillar Fuel Injector Series - Engine - Equipment Appliccccation Table

Fuel Injector / Engine Series	Common Injection Technology	Corresponding Engine Platform	Common ccccat Models / Equipment Platforms
3116 Series	Mechanical Injection / Early Electronic Platform	3116, 3116T, 3116TA, 3116DIT	M318, M320 Wheel Excavators; 135H Motor Grader; D6M Dozer
3126 / 3126B Series	HEUI	3126, 3126B	120H Motor Grader; 950G Series II Wheel Loader; 950G Platform
3126E Series	HEUI	3126E	Commonly used in medium-duty construction and industrial platforms similar to the 3126 appliccccation range
C6.4 Series	ACERT Injection Platform	C6.4 ACERT	320D / 320D L; 323D L / LN; 320D LRR; 320D FM
C6.6 Series	ACERT Injection Platform	C6.6 ACERT	320D / 320D L (C6.6 versions); 320E LN; 323E LN
C7 Series	HEUI	C7, C7 ACERT	120K Motor Grader; 950H Wheel Loader
C7.1 Series	Common Rail / Later Electronic Injection	C7.1, C7.1 ACERT	320D2 / D2 L, 326D2, 330D2 Excavators; 950K, 950, 962, 930M Wheel Loaders; Generator Sets
C9 Series	HEUI-B	C9, C9 ACERT	330D / 330D L / 330D MH; construction and industrial platforms
C10 Series	Electronic Unit Injection Family	C10	140H, 143H, 160H, 163H, 14H, 16H Motor Graders; 814F Wheel Dozer; 815F Compactor; 816F Landfill Compactor; 966G II, 972G II Wheel Loaders; D7R II Dozer; 725 / 730 Articulated Trucks; R1600G, R1700G LHD; W345B II Wheel Excavator; 345B / 365B Excavators
C12 Series	Electronic Unit Injection	C12, C12 Marine	Widely used across 140H, 143H, 160H, 163H, 14H, 16H; 966G II, 972G II; D7R II; 725 / 730; W345B II; 345B / 365B; also widely used in marine appliccccations
C13 Series	MEUI	C13, C13 ACERT	345D L Excavator; 730C EJ Articulated Dump Truck; Generator Sets; Industrial Power Platforms
C15 Series	MEUI	C15, C15 ACERT	770 Off-Highway Truck; 374D L / 374F L Excavators; 365C Demolition Excavator; R3000H LHD; Industrial Power and Generator Sets
3406E Series	EUI	3406E	AD30 Underground Mining Truck; 16H Motor Grader; 824G Series II Wheel Dozer; 826G Series II Landfill Compactor
C18 Series15	EUI / Later Electronic Injection Platform	C18, C18 ACERT	Generator Sets; Marine Appliccccations; Large Industrial and Mining Platforms

Why Choose Us:

1 .All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.

2.We are very glad that customer give us some suggestion for price and products.

3 .If any question, please contact with us freely by E-mail or Telephone.

4.Quality is culture - professional trading experience help you solve any problem .

Contact Detail:

ADD:Huangpu Machinery City, No.585-A, No.138, Southeast Road, Huangpu District, Guangzhou City,
Guangdong Province
Cellphone:+86 13790195672 Whatsapp::+86 13790195672
Email:edwardswilliam1988@gmail.com

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