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Home / Products / CATERPILLAR Diesel Fuel Injectors / Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory
Quality Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping factory

Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping

Basic Properties
Place of Origin: USA
Brand Name: C-A-TERPILLA
Certification: Contact: 86+ 19959162250
Model Number: 321-0990
Trading Properties
Minimum Order Quantity: 1
Price: $400-$550
Payment Terms: L/C, D/A, D/P, T/T, Western Union, , Western Union
Supply Ability: 1000
Tags

10R-7224 Diesel Engine Fuel Injector

387-9433 Diesel Engine Fuel Injector

387-9437 C-A-TERPILLAR Diesel Fuel Injectors
Product Summary
Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping Product Description: Parts 321-0990 OEM NO 2645A743 Powerplant nozzle Payment term T/T,Western Union 1. Product Basic Specifications This table shows the core basic specifications ...

Product Details

Highlight:

Caterpillar diesel fuel injector 321-0990

,

Common rail fuel injector for C6.6 engine

,

Excavator spare parts fuel injector 10R-7668
Product Name: C-A-Terpillar Injector
OE NO: 321-0990
OE no1: 2645A743
Warranty: 12 Months
Contact: 86+ 19959162250
Quality: Brand New Genuine
Car Model: C-A-T ENGINE
AppliC-A-Tion: Fuel Injection System
Material: High Speed Steel
Type: Trck
SIZE: Origional Standard
Product Description

 

Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping


Product Description:

Parts 

321-0990
OEM NO 

2645A743
Powerplant

nozzle
Payment term T/T,Western Union 

 

1. Product Basic Specifications

This table shows the core basic specifications of the 321-0990 injector. As a genuine CCaterpillar OEM part, it is exclusively designed for C6 engines. Its advanced alloy steel body ensures durability, while the 24 Months warranty confirms its reliable quality. The Approx. 2.05 kg weight and standard design guarantee perfect fit and easy installation, laying a solid foundation for stable engine operation and long service life. Every specification is engineered to meet CCaterpillar's rigorous standards.

Part Number 321-0990 (Genuine CCaterpillar OEM)
Product Type Diesel Fuel Injector Assembly
Compatible Engine CCaterpillar C6 Series
Body Material High-strength alloy steel
Net Weight Approx. 2.05 kg
Warranty Period 24 Months (Manufacturing Defects Only)

2. Cross-Reference & Universal Part Numbers

This table provides universal part numbers for the 321-0990 injector, facilitating quick part replacement and inventory management. All listed universal numbers are fully compatible with the original part, requiring no engine modification. While interchangeable, genuine parts are recommended to maintain the injector's precision and performance, avoiding issues caused by non-certified alternatives and ensuring consistent engine efficiency. These cross-references simplify sourcing and maintenance planning.

OEM Part Number 321-0990
Universal No. 1 7E-4222
Universal No. 2 20R-8271
Universal No. 3 20R-5739
Universal No. 4 138-2203
Compatibility Note Fits CCaterpillar C6 Engines

3. Pre-Installation Preparation Steps

These pre-installation steps are critical to protect the 321-0990 injector and ensure installation success. Inspecting for damage and verifying compatibility prevents mismatches, while cleaning and preparing seals avoid fuel leaks. Proper preparation protects the injector's internal components, such as the nozzle and needle valve, laying the groundwork for smooth installation and optimal post-installation performance. Skipping these steps risks damaging the new injector or causing poor operation.

Step 1 Check for shipping damage
Step 2 Validate part number and application
Step 3 Clean fuel system components
Step 4 Remove contamination from bore
Step 5 Prepare replacement seals
Step 6 Verify tool specifications

 

C6
10R-7668 10R-7671 10R-7672 10R-7673 10R-7674 10R-7676 10R-7938 10R-7939 2645A709
2645A718 2645A734 2645A746 2645A747 2645A749 2645A751 2645A753 282-0490 292-3780
295-9130 306-9380 306-9390 310-9067 320-0655 320-0677 320-0680 320-0688 320-0690
321-0990 321-3600 382-0480            
 

 

ccaterpillar Fuel Injector Series - Engine - Equipment Appliccccation Table

Fuel Injector / Engine Series Common Injection Technology Corresponding Engine Platform Common ccccat Models / Equipment Platforms
3116 Series Mechanical Injection / Early Electronic Platform 3116, 3116T, 3116TA, 3116DIT M318, M320 Wheel Excavators; 135H Motor Grader; D6M Dozer
3126 / 3126B Series HEUI 3126, 3126B 120H Motor Grader; 950G Series II Wheel Loader; 950G Platform
3126E Series HEUI 3126E Commonly used in medium-duty construction and industrial platforms similar to the 3126 appliccccation range
C6.4 Series ACERT Injection Platform C6.4 ACERT 320D / 320D L; 323D L / LN; 320D LRR; 320D FM
C6.6 Series ACERT Injection Platform C6.6 ACERT 320D / 320D L (C6.6 versions); 320E LN; 323E LN
C7 Series HEUI C7, C7 ACERT 120K Motor Grader; 950H Wheel Loader
C7.1 Series Common Rail / Later Electronic Injection C7.1, C7.1 ACERT 320D2 / D2 L, 326D2, 330D2 Excavators; 950K, 950, 962, 930M Wheel Loaders; Generator Sets
C9 Series HEUI-B C9, C9 ACERT 330D / 330D L / 330D MH; construction and industrial platforms
C10 Series Electronic Unit Injection Family C10 140H, 143H, 160H, 163H, 14H, 16H Motor Graders; 814F Wheel Dozer; 815F Compactor; 816F Landfill Compactor; 966G II, 972G II Wheel Loaders; D7R II Dozer; 725 / 730 Articulated Trucks; R1600G, R1700G LHD; W345B II Wheel Excavator; 345B / 365B Excavators
C12 Series Electronic Unit Injection C12, C12 Marine Widely used across 140H, 143H, 160H, 163H, 14H, 16H; 966G II, 972G II; D7R II; 725 / 730; W345B II; 345B / 365B; also widely used in marine appliccccations
C13 Series MEUI C13, C13 ACERT 345D L Excavator; 730C EJ Articulated Dump Truck; Generator Sets; Industrial Power Platforms
C15 Series MEUI C15, C15 ACERT 770 Off-Highway Truck; 374D L / 374F L Excavators; 365C Demolition Excavator; R3000H LHD; Industrial Power and Generator Sets
3406E Series EUI 3406E AD30 Underground Mining Truck; 16H Motor Grader; 824G Series II Wheel Dozer; 826G Series II Landfill Compactor
C18 Series EUI / Later Electronic Injection Platform C18, C18 ACERT Generator Sets; Marine Appliccccations; Large Industrial and Mining Platforms
 

 

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Packing&Shipping:

Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast ShippingCommon Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast ShippingCommon Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping

 

Common Rail Diesel Fuel Injector 321-0990 10R-7668 2645A743 for C6.6 Engine Excavator Spare Parts in Stock Fast Shipping

 
Contact Detail:
ADD:Huangpu Machinery City, No.585-A, No.138, Southeast Road, Huangpu District, Guangzhou City,
Guangdong Province Tel:+86 020 88557755
Cellphone:+86 19959162250 Whatsapp::+86 19959162250
Email:2209396088@qq.com
 
 
 

 

Mr. Lee

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