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Cummins Common Rail & EUI Injectors for Heavy-Duty Engines

Precision Metering: Calibrated Fuel Injectors for ISX, N14 & 6BT Powerplants

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Quick Summary: Cummins Fuel Injector Solutions

Replace your failing Cummins fuel injectors to solve excessive return flow, hard starting, and black smoke. Our common rail injectors are calibrated for precise injection timing in ISX15, QSB6.7, and 6.7L Cummins engines. Fits equipment including Peterbilt 389, Dodge Ram 2500, and Komatsu excavators. Factory-direct wholesale supply.

Optimized Combustion: Fuel Delivery Solutions for Commercial Power

In the demanding logistics and industrial sectors, fuel system integrity defines operational profitability. Ruich Value supports the global supply chain with a wholesale inventory of Cummins Diesel Fuel Injectors, resolving critical shortages for mixed fleets. Whether servicing legacy mechanical N14 EUI engines or modern electronic ISX15 Common Rail powertrains, we provide calibrated injection solutions to keep commercial assets moving. Our program addresses the specific engineering challenges of high-pressure diesel combustion, focusing on spray pattern consistency and return flow specifications. By ensuring precise atomization, our components eliminate common failures such as rough idling, excessive emissions, and oil dilution. Explore our catalog to identify the exact injection solution for your engine platform, from the versatile 6BT to the high-horsepower KTA series.

Buyer’s Guide: Choosing the Right Cummins Injector System

Cummins engines utilize distinct fuel system technologies depending on the era and application. Identifying your system type is critical for ordering correct replacements.
System Technology Typical Series Key Characteristics
Common Rail (HPCR) ISB, ISC, ISL, QSB High-pressure rail storage; electronic solenoid control; precise multi-shot injection.
Electronic Unit Injector (EUI) N14, M11, L10, ISX Camshaft-actuated plunger; electronic metering valve; integrated into the cylinder head.
PT System (Pressure-Time) NT855, KTA19, KTA38, KTA50 Mechanical system; fuel pressure controlled by pump; injection timing controlled by cam.

Cummins Engine & Equipment Applications

Engine Series Compatible Equipment & Vehicles
B Series (4BT / 6BT / ISB)
  • Light to Medium Trucks (Dodge Ram, Freightliner)
  • Excavators (Komatsu PC200, Hyundai R220)
  • Agricultural Tractors (Case IH)
C & L Series (6CT / ISC / ISL)
  • Transit Buses and Motorcoaches
  • Medium-Duty Construction Loaders
  • Fire and Emergency Vehicles
Heavy-Duty (N14 / ISX / M11)
  • Class 8 Long-Haul Trucks (Kenworth, Peterbilt, Volvo)
  • Heavy Mining Dump Trucks
High Horsepower (KTA19 / KTA38 / QSK)
  • Marine Propulsion & Gensets
  • Large Mining Shovels and Haulers
  • Oil & Gas Fracturing Pumps

Why Source Cummins Injectors from Ruich Value?

  • Flow Bench Calibration: 100% Computerized Multi-Point Testing. Solves: Eliminates black smoke, rough idle complaints, and ensures balanced power across all cylinders.
  • Micro-Tolerance Nozzles: High-precision needle seating and spray hole EDM. Solves: Prevents post-injection dripping and incomplete combustion, maximizing fuel economy.
  • Return Flow Stabilization: Validated back-leakage rates. Solves: Ensures correct internal pressure maintenance, preventing hard-start issues in hot conditions.
  • Inventory Depth: Ready Stock for popular Common Rail and EUI codes. Solves: Solves urgent breakdown needs and speeds up your capital turnover.
  • Packaging: Reinforced Export Crates with VCI corrosion protection. Solves: Prevents transit damage and rust, protecting your profit margin.

Compatible Equipment Models

Our Cummins diesel fuel injectors are compatible with heavy-duty and light-duty applications including: Peterbilt 389, Dodge Ram 2500/3500 (6.7L), Komatsu PC300-8, Kenworth T680, and Case 580N series.

Available Cummins Diesel Fuel Injector Range

To ensure precise combustion performance, matching the correct injector group is critical. Please cross-reference your specific OEM Part Number or Engine CPL in the catalog below to verify compatibility.
Part NumberEngine SeriesNozzle ModelCross-Reference NumbersTypical Applications
0445110376ISF2.8DLLA145P2168445110594Foton Tunland, Gazelle NEXT
0445120241ISBe, ISDeDLLA144P15390445120070, 3976631, 4930485, 5263304Dongfeng, King Long Bus
0445120121ISLeDLLA142P17094940051YUTONG, KING LONG BUS
0445120133ISDeDLLA145P17144937065Cummins Applications
0445120199ISLeDLLA146P21614994541Cummins Applications
0445120232ISDeDLLA153P21890445120309, 5255227DFM Trucks
0445120255ISF3.8DLLA144P22730986AD1050, 5268408Foton Aumark
0445120304ISF3.8DLLA144P22730986AD1050, 5268408DFM Trucks
0445120007ISBe, ISDeDSLA143P9702830957, 2830224, 4897271, BG5X9E526AAFAW J5/J6, Yutong Bus
0445120231QSB6.7, SAA6D107E-1DLLA128P15100445120059, 4945969, 5263262Komatsu PC200-8, Hyundai Equipment
0445120122ISLeDLLA144P17074937065YUTONG, King Long Bus
0445120123ISDe 4 & 6 CylinderDLLA140P17234939061Dongfeng Cummins
0445120134ISF3.8DLLA141P2146P1112010-29DFOTON Auman
0445120210ISBe, EEADLLA143P55015255184Dongfeng TIANLONG
0445120236QSL9DLLA118P22034947582Komatsu PC300-8, PC350-8
0445120289ISLeDLLA142P22625256025Dongfeng Cummins
0445120297ISF2.8DLLA145P22705253221FOTON Cummins
0445120367ISD4.5DLLA127P24025283275Dongfeng Trucks
0445120128ISLeDLLA144P17074937065YUTONG, King Long Bus
04451200416BTAADSLA143P55013965721Cummins Marine, Industrial
0445120006ISB, QSBDSLA143P9703949619Dodge Ram, Cummins Industrial
0445120188ISLeDLLA146P21610445120342, 5256034Cummins Engines
39282286BTN/ACummins Industrial, Marine
0445120229ISDeDLLA144P17074940170Cummins Engines
0445120059QSB6.7DLLA128P15100445120231, 4945969, 5263262Komatsu, Hyundai Equipment
0445120066D6DDLLA144P15652112999Volvo, Renault Truck
0445120106dCi 11DLLA153P17210445120310, D5010222528Renault Trucks, Dongfeng TIANLONG
0445120153Kamaz 740.63-400DLLA147P181402-10-04-01KAMAZ Trucks
0445120212ISBe, EEADLLA143P55015255184Dongfeng TIANLONG
0445120214WD10DLLA152P17680445120169, 612600080731Shaanxi Delong, Foton Auman
0445120215CA6DM2DLLA149P21660445120394, 612630090012FAW JIEFANG J5, J6
0445120218D2866, D2876DLLA146P133951101006125, 0445120030MAN Truck
0445120244WP6DLLA150P17810445120150, 612600080618Shanxi Delong
0445120294YC6J190DLLA150P2282YC6J190-1112100Yuchai Engines
0445120321D10DLLA148P2369VG1034080002Sinotruk
0445120368D10DLLA154P2406VG1034080001SINO Truck
0445120391WP12DLLA147P24746.1263E+11Weichai Engines
39229296CTN/AClassic Medium-Duty Trucks, Industrial
4954434ISX, QSXN/A2872544, 4954434RXHeavy-Duty On-Highway Trucks (Class 8)
2872544ISX, QSXN/A4954434, 2872289Heavy-Duty On-Highway Trucks (Class 8)
3076132N14, K-SeriesN/A3077715, 3095773Heavy-Duty Trucks, Mining, Power Generation

Detailed View: Select a specific item below to view detailed technical specifications, OEM cross-reference data, and high-resolution physical photos.

Looking for more components? Explore our complete Cummins Diesel Fuel Injection Components Catalog

Technical Q&A: Cummins Fuel Injectors

What is the most common cause of Cummins fuel injector failure?

The most common failure is excessive internal return flow, often caused by fuel contamination and abrasive particles. This prevents the common rail from reaching the required starting pressure, causing hard-start or no-start conditions.

How can I identify a faulty Cummins fuel nozzle?

Look for black smoke, rough idling, and engine misfires. These indicate a nozzle clogging or a “leaky” injector that is failing to atomize fuel correctly. Our replacement injectors feature precision-engineered nozzle holes for perfect spray patterns.

Why are new injector calibration codes required during installation?

Every Cummins common rail injector has slight flow variations. The calibration code (IMA/ISA code) tells the engine’s ECU how to adjust the pulse width for that specific injector to ensure perfectly balanced cylinder performance.

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We also supply control valves, nozzles, and solenoids for bulk fleet maintenance orders.

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