Premium 0445120121 Cummins ISLe injector in stock. Precision-engineered for 8.9L engines including Dongfeng Kinland trucks and Yutong buses. Prevents misfire and rough idle. Global shipping available. Contact for quote!
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The Cummins ISLe common rail injector (OEM: 0445120121) is a high-precision fuel component for 8.9L engines.
It resolves cold-start misfires and idle irregularity, fitting equipment including Dongfeng Kinland trucks, Yutong buses, and Liugong CLG856 loaders.
In stock for global wholesale.
As the premier fuel injector for Yutong and King Long buses, this high-performance replacement for OEM 0445120121 is engineered to keep public transit fleets running efficiently. Designed for the powerful Cummins ISLe engine, it embodies the brand’s heritage of reliability in commercial transport. This injector is a direct cross-reference for Cummins part 4940640, guaranteeing perfect fitment and restoration of original engine performance for your bus fleet.
Built with enhanced durability to withstand the long operational hours of transit vehicles, our injectors feature precision engineering for optimal fuel spray and combustion. This leads to better fuel economy and lower emissions, making it the number one choice for fleet maintenance managers and parts wholesalers specializing in commercial bus parts.
| Specification | Value |
|---|---|
| Product Type | Fuel Injector (Common Rail) |
| Injection System | Bosch CRI / Common Rail |
| Injection Pressure | 1800 – 2000 Bar |
| Nozzle Type | Multi-hole Laser Drilled |
| Calibration | IMA Trim Code Included |
| Quality Testing | Flow Matched & Spray Pattern Tested |
| OEM Reference | 0445120121 |
| Cross Reference | 0445120231, 5263262, 5304931, 0986435532 |
| Typical Applications | Dongfeng Kinland, Yutong Bus, King Long Bus, Liugong CLG856 |
| Application Category | Heavy-Duty Logistics, Commercial Transport & Earthmoving |
| Engine Model | Application Field | Typical Equipment Brands & Models |
|---|---|---|
| Cummins ISLe (Euro 3) | City & Intercity Bus | Yutong (e.g., ZK6127H), King Long (e.g., XMQ6129Y), Higer Bus |
| Cummins ISLe (Euro 3) | Heavy-Duty Trucking | Dongfeng Tianlong, Foton Auman, JAC Gallop |
| Cummins ISLe (Euro 3) | Construction & Industrial | Sany Concrete Pumps, XCMG Cranes, Shantui Bulldozers |
Important: All fuel injector orders require OEM number verification to ensure perfect fitment. Please provide your current part number when requesting quotes.
Complete Service Solutions: Beyond replacement fuel injectors, we supply comprehensive repair kits and individual components including:
Contact our technical team for component-level solutions and repair guidance.
Ruich Value supplies a dedicated range of Cummins diesel common rail fuel injectors, including new and remanufactured replacements for various applications. Our coverage includes popular engine families such as ISF, ISB, ISL, QSB, and ISX series. Find the right Cummins fuel injectors in our catalog.
| Part Number | Engine Series | Nozzle Model | Cross-Reference Numbers | Typical Applications |
|---|---|---|---|---|
| 0445110376 | ISF2.8 | DLLA145P2168 | 445110594 | Foton Tunland, Gazelle NEXT |
| 0445120241 | ISBe, ISDe | DLLA144P1539 | 0445120070, 3976631, 4930485, 5263304 | Dongfeng, King Long Bus |
| 0445120121 | ISLe | DLLA142P1709 | 4940051 | YUTONG, KING LONG BUS |
| 0445120133 | ISDe | DLLA145P1714 | 4937065 | Cummins Applications |
| 0445120199 | ISLe | DLLA146P2161 | 4994541 | Cummins Applications |
| 0445120232 | ISDe | DLLA153P2189 | 0445120309, 5255227 | DFM Trucks |
| 0445120255 | ISF3.8 | DLLA144P2273 | 0986AD1050, 5268408 | Foton Aumark |
| 0445120304 | ISF3.8 | DLLA144P2273 | 0986AD1050, 5268408 | DFM Trucks |
| 0445120007 | ISBe, ISDe | DSLA143P970 | 2830957, 2830224, 4897271, BG5X9E526AA | FAW J5/J6, Yutong Bus |
| 0445120231 | QSB6.7, SAA6D107E-1 | DLLA128P1510 | 0445120059, 4945969, 5263262 | Komatsu PC200-8, Hyundai Equipment |
| 0445120122 | ISLe | DLLA144P1707 | 4937065 | YUTONG, King Long Bus |
| 0445120123 | ISDe 4 & 6 Cylinder | DLLA140P1723 | 4939061 | Dongfeng Cummins |
| 0445120134 | ISF3.8 | DLLA141P2146 | P1112010-29D | FOTON Auman |
| 0445120210 | ISBe, EEA | DLLA143P5501 | 5255184 | Dongfeng TIANLONG |
| 0445120236 | QSL9 | DLLA118P2203 | 4947582 | Komatsu PC300-8, PC350-8 |
| 0445120289 | ISLe | DLLA142P2262 | 5256025 | Dongfeng Cummins |
| 0445120297 | ISF2.8 | DLLA145P2270 | 5253221 | FOTON Cummins |
| 0445120367 | ISD4.5 | DLLA127P2402 | 5283275 | Dongfeng Trucks |
| 0445120128 | ISLe | DLLA144P1707 | 4937065 | YUTONG, King Long Bus |
| 0445120041 | 6BTAA | DSLA143P5501 | 3965721 | Cummins Marine, Industrial |
| 0445120006 | ISB, QSB | DSLA143P970 | 3949619 | Dodge Ram, Cummins Industrial |
| 0445120188 | ISLe | DLLA146P2161 | 0445120342, 5256034 | Cummins Engines |
| 3928228 | 6BT | N/A | Cummins Industrial, Marine | |
| 0445120229 | ISDe | DLLA144P1707 | 4940170 | Cummins Engines |
| 0445120059 | QSB6.7 | DLLA128P1510 | 0445120231, 4945969, 5263262 | Komatsu, Hyundai Equipment |
| 0445120066 | D6D | DLLA144P1565 | 2112999 | Volvo, Renault Truck |
| 0445120106 | dCi 11 | DLLA153P1721 | 0445120310, D5010222528 | Renault Trucks, Dongfeng TIANLONG |
| 0445120153 | Kamaz 740.63-400 | DLLA147P1814 | 02-10-04-01 | KAMAZ Trucks |
| 0445120212 | ISBe, EEA | DLLA143P5501 | 5255184 | Dongfeng TIANLONG |
| 0445120214 | WD10 | DLLA152P1768 | 0445120169, 612600080731 | Shaanxi Delong, Foton Auman |
| 0445120215 | CA6DM2 | DLLA149P2166 | 0445120394, 612630090012 | FAW JIEFANG J5, J6 |
| 0445120218 | D2866, D2876 | DLLA146P1339 | 51101006125, 0445120030 | MAN Truck |
| 0445120244 | WP6 | DLLA150P1781 | 0445120150, 612600080618 | Shanxi Delong |
| 0445120294 | YC6J190 | DLLA150P2282 | YC6J190-1112100 | Yuchai Engines |
| 0445120321 | D10 | DLLA148P2369 | VG1034080002 | Sinotruk |
| 0445120368 | D10 | DLLA154P2406 | VG1034080001 | SINO Truck |
| 0445120391 | WP12 | DLLA147P2474 | 6.1263E+11 | Weichai Engines |
| 3922929 | 6CT | N/A | Classic Medium-Duty Trucks, Industrial | |
| 4954434 | ISX, QSX | N/A | 2872544, 4954434RX | Heavy-Duty On-Highway Trucks (Class 8) |
| 2872544 | ISX, QSX | N/A | 4954434, 2872289 | Heavy-Duty On-Highway Trucks (Class 8) |
| 3076132 | N14, K-Series | N/A | 3077715, 3095773 | Heavy-Duty Trucks, Mining, Power Generation |
A1: Symptom: Rough engine idle, loss of power under load, and excessive fuel consumption. Diagnosis: In 8.9L ISLe engines, the high-pressure solenoid may become sluggish due to carbon buildup or water contamination in the common rail fuel system. Solution: Our 0445120121 replacement injectors feature updated valve assemblies and anti-corrosion needle coatings that resist fuel-borne contamination, ensuring stable spray timing in demanding heavy truck applications.
A2: Technical Detail: The injector must be coded with the provided IMA trim code in the engine ECU. Pro-Tip: Always replace the injector copper washer (crush ring). A reused washer will allow exhaust gas to blow back into the fuel system, which will contaminate the oil and destroy the new injector within a few hundred engine hours.
A3: Diagnosis: Manufacturing tolerances for high-pressure injection volumes vary slightly between units. Our Solution: Every injector we provide comes with a verified Trim Code. Programming this code allows the engine management system to balance the injection volume across all cylinders, which is critical for preventing vibration and maximizing the fuel efficiency of heavy engines like the Dongfeng Kinland.
Get a quote or ask a technical question about the Cummins ISLe bus injector 0445120121.
For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business
