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CAT 3412 Injector 0R-9803: High-Efficiency Fuel Delivery for Heavy-Duty Industrial Engines

2026-03-30

Latest company case about CAT 3412 Injector 0R-9803: High-Efficiency Fuel Delivery for Heavy-Duty Industrial Engines

c-aterpillar 3412 Series Fuel Injector 0R-9803 – Product Details

0R-9803 is a highprecision diesel fuel injector assembly engineered for c-aterpillar 3412/3412C, 3406E, C16/C18 engines. It delivers stable injection pressure, uniform fuel atomization, and longlife performance for generator sets, marine propulsion, industrial power, and heavy construction machinery.

1. Core Basic Specific-ations

 

Item Specific-ation
Part Number 0R-9803
Cross Reference 176-1150, 191-3005, 10R-0955
Engine Fit c-at 3412 / 3412C / 3406E / C16 / C18 / 3456
Product Type Complete Fuel Injector Assembly
Net Weight Approx. 2.14 kg
Material Highstrength wearresistant alloy + precision mating components
Seal Grade Heavyduty industrial

2. Applic-ations & Compatible Equipment

 

Applic-ation Suitable Models & Equipment
Generator Sets 3412, 3412C, PM3412, SR500
Marine Engines 3412/3412C main & auxiliary propulsion
Industrial Power Pump units, compressors, SPS342, SPT342
Construction Machinery 621G/623G/627G tractors, heavy dozers, mining equipment

3. Performance & Technical Data

 

Parameter Standard
Injection Type Mechanical pressure atomization
Opening Pressure Calibrated to c-at original factory specs
Spray Pattern OEMmatched spray angle & uniformity
Flow Rate Accuracy ≤ ±3%
Operating Temperature -40°C ~ 120°C
Testing 100% flow & leakage bench tested

4. Quality & Warranty

 

Item Details
Manufacturing Standard ISO 9001 + c-at original process
Test Items Sealing, flow rate, atomization, durability
Warranty Standard industrial warranty (new/remanufactured)
Installation Direct replacement, no modific-ation required

 


 

Product Description

The c-aterpillar 0R-9803 fuel injector is precisionengineered for 3412 series and other highpower c-at diesel engines. It features premium precisionmachined plunger–barrel sets and optimized nozzle geometry to ensure accurate highpressure fuel delivery and consistent atomization. This improves combustion efficiency, reduces fuel consumption, lowers exhaust smoke, and enhances overall engine power stability. Built to original c-at dimensional and performance specific-ations, the 0R-9803 enables direct, hasslefree replacement and is ideal for continuous heavyduty operation in generators, marine vessels, industrial pump systems, and construction equipment. Constructed with wearresistant, corrosionproof materials and validated by strict factory testing, it maintains reliable performance under high loads and extreme temperatures, minimizing downtime and supporting longterm engine durability.