Cummins Fuel Injector Assy 4903319 for Diesel M11 Series Engine

• Customization: Available
• Certification: ISO9001
• Standard Component: Standard Component
• Model NO.: Fuel Injector
• Technics: Casting
• Material: Aluminum Alloy
• Type: Crankshaft
• Weight: 3.74lbs
• Transport Package: Packing
• Specification: 3.75*10.9*7.4In
• Trademark: Zhengwei
• Origin: China
• Production Capacity: 500000PCS/Year

Product Description

DESCRIPTION

Cummins Injector
Part #4903319

Shipment Weight: 3.74lbs

4903319 for Qsm ISM Qsm11 ISM11 M11 Diesel Engine Fuel Injector
 

Cummins Fuel Injector Assy 4903319 for Diesel M11 Series Engine

The Cummins Injector 4903319 is used primarily on Non Certified 11 liter M11 engines.

Shipment Height:3.75 In

Shipment Length: 10.9 In

Shipment Width:7.4 In

Brand new diesel fuel injector assembly for Cummins QSM11 arnd ISM11 diesel engine
Cummins part number: 4903319
Injector solenoid: 4307547
Injector control valve: CLICK HERE
Injector nozzle: 4061852, 430777, 4307519, 4384383, 3095727,41893473, 4902922, 3609923, 4926223,
4307519, 4903320, 4903474
We also have other injector parts of this injector, such as ssolenoid cable, nozzle spring, injector plunger spring
injector fuel inlet filter...

Advantage:

1. We have more than 10 years of experience in Cummins diesel engine parts.Especially in PT fuel system parts such as PT injector,PT fuel pump and parts for them.

2. We cooperate with many certificated OEM factories of Cummins who have advanced equipment and technology.

3. We provide a full range of Cummins parts for all CCEC and DCEC engines such as M11,NT855,K19,K38,K50,4BT,6BT,QSB,QSC,ISF,L10,V28,N14,QSX etc. We also have full stock for general parts so we can deliver in a short time.

4. High Quality + Reasonable Price + Quick Response + Technical Support, is what we are trying to offer you the best cooperation experience.

General Information

The Fuel Injector Assembly with part number 4903319 is a critical component for Cummins engines, designed to deliver precise fuel injection for optimal engine performance. It is manufactured to meet high-quality standards, ensuring durability and reliability in demanding operational conditions.

Part Name	Common Rail Injector
Part Number	4903319
Engine Model	Diesel engine QSM11 ISM11
Applications	Heavy duty truck, buses, engineering machinery, mining machinery, petroleum machinery, railway machinery, port machinery, stationary and mobile diesel generator set power stations, Marine propulsion unit and auxiliary power unit, pump power units and other power units, automobile industry power ships.
Packing	Standard Packing
Payment Term	T/T

Fuel Injector Assy 4903319

Application Scope
· Construction Machinery: Compatible with various loaders, excavators, and other heavy equipment. For example, it is suitable for 505 excavators equipped with Cummins KTA19 engines.

· Diesel Engine Series: Works with multiple Cummins diesel engine models, including but not limited to M11, ISM11, QSM11, L10, and KTA19.

Function and Role
1. Precise Fuel Injection: Delivers fuel into the engine's combustion chamber accurately based on engine operating conditions and control signals, ensuring optimal fuel-air mixing for efficient combustion.

2. Fuel Quantity Regulation: Adjusts fuel injection volume automatically according to parameters like engine load and speed, enabling the engine to maintain optimal fuel supply across different working states. This enhances power performance, fuel economy, and emission standards.

Working Principle
· Pressure-Driven Operation: When the engine runs, the fuel pump pressurizes fuel and sends it to the injector. The internal pressure sensor and solenoid valve of the injector follow commands from the Engine Control Unit (ECU) to control injection timing and duration.

· Atomized Injection: At the injector nozzle, high-pressure fuel is atomized into fine particles, which are evenly sprayed into the combustion chamber, mixed with air, and ignited to generate power.

Product Features
· High-Precision Manufacturing: Utilizes advanced manufacturing processes and high-precision equipment to ensure dimensional accuracy and assembly quality, guaranteeing injection accuracy and stability.

· Superior Durability: Exhibits excellent wear resistance, corrosion resistance, and high-temperature resistance, enabling long-term stable operation in harsh environments and reducing maintenance and replacement frequency.

· Optimal Injection Characteristics: The nozzle design ensures ideal fuel atomization and injection pattern, improving combustion efficiency and reducing pollutant emissions

This introduction covers the key aspects of the Fuel Injector Assy 4903319, including its application, function, and technical features. For more detailed specifications or purchasing information, please consult authorized Cummins dealers or suppliers.

Engine	Description	Part #	Part #	Part #	Part #	Part #
4BT	conrod bearing	3901171	3901172	3901173	3901174	3969562
4BT	conrod bearing	3939859	3939860	3939861	3939862	3971970
6BT	conrod bearing	4892795	4892796	4892797	4892798	4893693
6BT	conrod bearing	4932376	4932377	4932378
6CT	conrod bearing	3901430	3901431	3901432	3901433	3901434
6CT	conrod bearing	3950661	3966244	3901460	3950662
QSB	conrod bearing	3901170	3901230	3939380	3939390	3939859
QSB	conrod bearing	4892795	4892796	4892797	4892798	4893693
QSB	conrod bearing	4932376	4932377	4932378	5302904
ISF2.8	conrod bearing	5261124	5261125	5284536	5284537
ISF3.8	conrod bearing	4376188	4948508	4948509
K19	conrod bearing	205840	205841	205842	205843	205844
K38	conrod bearing	3047390	3047391	3047392	3047393	3047394
K50	conrod bearing	3021710	206160	3650900	4914696
M11	conrod bearing	3016760	3016761	3016762	3016763	4319786
NT	conrod bearing	203660	203661	203662	203663	203670
NT	conrod bearing	203672	203673	214950	214951	214952
NT	conrod bearing	3055145	3055146	3055147	3055148	3150011
NT	conrod bearing	3150013	3150014

Company Profile

Sichuan Zhengwei Power Technology Co.,Ltd. is a comprehensive and diversified enterprise which established in 2009. Headquartered in No. 388 Huanghe Road, Xindu District, Chengdu, Sichuan Province.The company specializes in diesel generator sets, Cummins engine assembly, Cummins pure parts sales and after-sales service. The company not only has a rich product line, including high-quality diesel generator sets and all kinds of pure accessories, but also provides a full range of after-sales service to ensure the stable operation of customers' equipment. In addition, with strong technical strength and rich experience, the company focuses on the maintenance of all kinds of construction machinery at home and abroad, and can provide customers with efficient and professional mechanical equipment maintenance services, solve all kinds of equipment failures, and ensure the normal production and operation of customers. 

Adhering to the corporate purpose of "Let customers get more value", the company will, provide customers with more and better products and services, and jointly open our better cooperation prospects!

Main Product

Production Process

Packaging & Shipping

Certifications

International Partners

FAQ

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Q: What's the lead time for orders?

A: Standard models ship in 15–30 days; customized units require 60-90days.

Q: Do you provide after-sales service?

A: Yes, We have a very comprehensive after-sales system.

Q: Can I request a customized parts?

A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?

A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?

A: Contact us via email/phone for a quote, then confirm with a PO.

 

Q: I'm not sure if this part fits my engine.

A: Please contact our customer service. We will help you identify or find the parts that fit your engine.

Q: I need other numbered parts, but they are out of stock in your store

A: You didn't want this part? Please contact us.If you can't find what you're looking for in store, it doesn't mean we're out of stock, The possible reasons are:

l The product was not put on the shelves in time

l The product link was invalid

l The keyword you searched for was incorrect

l Your part number machine model serial number was incorrect.

l Category restrictions, more optional models cannot be uploaded.

Therefore, please be sure to contact our customer service to inquiry whether the goods you need are actually in stock.l am confident that we can provide the products you need

 

Q: How long does it take to ship after payment?

A: After you make the payment,we usually need 3 business days to stock up and we will ship it to you.lf the parts you purchased are relatively rare, we will need longer time to stock them, but we will inform you via email.