Home Products

TG-A0021539 6PCS Fuel Injectors 3944183 for Cummins ISB QSB5.9 Engines | CM550 Diesel Replacement

3 Reviews

Add Your Review

US$105.00

ITEMNO：

Package price

IN STOCK

BUY NOW ADD TO CART

Good Packaging

Safe Payment

100k+ Customers Top Choice

1 Year Warranty

90-Day Return

24/7 Service

TAGS：

Product Details Product Highlights Shipping

PRODUCT DETAILS

TG-A0021539 6PCS Fuel Injectors 3944183 for Cummins ISB QSB5.9 Engines | CM550 Diesel Replacement

Product Description

The TG-A0021539 6PCS Fuel Injector Set is a high-quality diesel replacement designed for compatible Cummins ISB and QSB5.9 engines, including ISB CM550 and QSB5.9 CM550 applications.

Manufactured with high-precision machining, these injectors are designed to support accurate fuel delivery and effective fuel atomization. Each injector is tested for flow rate, leakage, spray pattern, and durability, providing a practical replacement solution for worn or damaged injectors during engine repair and maintenance.

This complete 6-piece set is designed as a direct-fit replacement for Cummins part number 3944183 and is also compatible with reference 3944183RX.

Please verify the original part number and engine model before ordering to ensure proper compatibility.

Product Specifications

Property	Value
Product Model	TG-A0021539
Product Name	Diesel Fuel Injector
Quantity	6PCS
Main Part Number	3944183
Alternate Reference	3944183RX
Compatible Brand	Cummins
Compatible Engines	ISB / QSB5.9 / ISB CM550 / QSB5.9 CM550
Fuel Type	Diesel
Product Type	Diesel Fuel Injector
Testing	Flow Rate / Leakage / Spray Pattern / Durability Tested
Condition	Brand New
Replacement Type	Direct-Fit Replacement
Application	Cummins Diesel Engine Equipment
Package Quantity	6 × Fuel Injectors
Product Weight	1.8 kg

OEM / Cross Reference Numbers

Brand / Category	Part Number
Cummins	3944183
Cummins / Exchange Reference	3944183RX

Compatible Engines

Engine Brand	Compatible Engine Model
Cummins	ISB
Cummins	QSB5.9
Cummins	ISB CM550
Cummins	QSB5.9 CM550

Compatible Applications

Machine / Application	Compatible Models
Cummins Diesel Equipment	Equipment powered by compatible ISB engines
Cummins Diesel Equipment	Equipment powered by compatible QSB5.9 engines
CM550 Engine System	ISB CM550 applications
CM550 Engine System	QSB5.9 CM550 applications
Engine Maintenance	Fuel injector replacement, repair, and fuel system service

Packing / Weight / Package Information

Property	Details
Package Quantity	6PCS
Net Weight	1.8 kg
Gross Weight	To Be Confirmed
Carton Size	To Be Confirmed
Package Volume	To Be Confirmed
Package Contents	6 × Fuel Injectors 3944183
Packing Method	Protective Packaging + Carton

PRODUCT HIGHLIGHTS

Product Highlights

Precision Fuel Atomization	Tested Replacement Quality	Complete 6PCS Set
High-precision machining supports accurate fuel delivery and effective atomization	Tested for flow rate, leakage, spray pattern, and durability	Includes 6 fuel injectors for complete engine service
Helps support reliable combustion and engine operation	Direct-fit replacement for Cummins 3944183	Suitable for ISB and QSB5.9 CM550 applications

SHIPPING

Item Details

Processing Time Orders are processed within 1-3 business days after payment confirmation

Shipping Methods DHL/UPS/ FedEx/ TNT/ Air Freight/ Sea Freight

Estimated Delivery Time Express shipping: 3-7 business days, depending on destination

Packaging Export-standard cartons with protective inner packing

Tracking Tracking number will be provided once the order is shipped

Shipping Cost Calculated based on weight, dimensions, and destination

Need Help?

Our product experts will respond to your email within 24 business hours.

Question *

Name *

Email *

Verification code *

WARRANTY POLICY

All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.

SHIPPING POLICY

We offer express and standard shipping options to ensure your off-road machine gets back in action—fast and reliably. For more details, please visit our Shipping Policy .

EASY RETURN POLICY

We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.

PRODUCT RECOMMENDATION