Product Video
Products Description
|
Brand |
Product Name |
Model |
Part Number |
|
Caterpillar |
CAT Fuel Injector | 349D | 249-0713 |
Product Details
|
Product Name |
CAT Fuel Injector |
|
Part Number |
249-0713 |
|
Origin |
US |
|
Brand Name |
CAT |
|
Model |
349D |
|
Price |
Negotiable |
|
Packing Details |
Standard Export Packing |
|
Delivery Time |
0-30 Days |
|
Payment Term |
L/C, T/T |
|
Price Term |
FOB, CIF, CFR |
|
Supply Capacity |
50,000 PCS/Month |
|
Minimum Order Quantity |
1 PC |
|
Material |
High Quality Steel |
|
Technology |
Precision Machining |
|
Quality |
Original Factory Standard |
|
After-Sales Service |
Full Support, Online Service |
|
Color |
Standard Caterpillar Color or Customizable |
|
Application |
Excavator |
|
Customizable |
including customized materials, surface treatment and specifications |
Product Features
Technical Specifications
Height (mm): 76.2
Width (mm): 139.7
Length (mm): 375.9
Precise Electronic Injection Control
The CAT Fuel Injector leverages HEUI (Hydraulically actuated Electronically controlled Unit Injector) technology to deliver injection pressures exceeding 2,000 bar. This enables micron-level fuel atomization, dramatically improving air-fuel mixing uniformity and ensuring more complete, efficient combustion.
Improved Fuel Efficiency
The precise fuel metering and superior combustion efficiency contribute to noticeably better fuel economy on large excavators like the 349D, helping reduce overall operating costs.
Fast Response and Accurate Control
Equipped with high-precision sensors, the injector minimizes injection timing errors. It adjusts fuel delivery in real time according to engine load, ensuring smooth, consistent power output across varying working conditions.
Durable and Heavy-Duty Design
Critical components, including the nozzle, are manufactured with reinforced materials and advanced processes. This ensures reliable performance and long service life under extreme temperatures, high pressures, and demanding applications such as mining operations.
Application Value
Improve Equipment Operating Efficiency and Reduce Downtime Losses
The highly compatible CAT Fuel Injector249-0713 restores the original power performance of CAT 349D excavators. It resolves problems including weak power and low working efficiency, greatly cutting downtime caused by breakdowns and maintenance waiting time, and effectively accelerating construction progress and boosting production capacity.
Save Fuel Costs and Lower Operating Expenses
Fine fuel atomization and precise fuel supply control significantly improve fuel combustion efficiency and reduce overall equipment fuel consumption. Remarkable fuel-saving benefits can be achieved during long-term high-frequency operation, lowering fuel procurement costs for construction enterprises.
Protect Core Engine Components and Extend Equipment Service Life
Stable injection conditions avoid carbon deposition, knocking, cylinder misfiring and other issues resulting from incomplete fuel combustion. It reduces wear and damage to key components such as engine liners, pistons and turbochargers, lowering the probability of major engine overhauls, extending the service life of the whole machine and cutting long-term maintenance costs.
Wide Application Scenarios and High Versatility for Stock Preparation
CAT Fuel Injector 249-0713 fits not only CAT 349D excavators but also multiple models equipped with C13 engines such as 345C and 345D. It is widely used in construction machinery scenarios including mining, infrastructure, earthmoving and municipal engineering, offering excellent cost performance and practicality for inventory stocking.
Maintenance Recommendations
Regular Replacement of Fuel Filter Components
Replace fuel filters and water-oil separators periodically in accordance with the equipment maintenance schedule. Timely remove impurities and accumulated water in fuel lines to prevent sediment and contaminants from entering the injector nozzles and ensure clean fuel circuits.
Strictly Control Fuel Quality
Inferior diesel with excessive impurities, water and sulfur content is the primary cause of sticking nozzles, blocked orifices and component corrosion of CAT Fuel Injector. It is recommended to use qualified high-quality low-sulfur diesel throughout equipment operation to reduce injector wear fundamentally.
Avoid Long-term Equipment Idling
When equipment is parked for an extended period, fuel inside pipelines tends to precipitate and deteriorate, forming gummy contaminants that easily block nozzle orifices. Before prolonged shutdown, drain inferior fuel and refill with premium diesel. Start the equipment regularly for idling to keep the fuel circuit unobstructed.
Standardized Disassembly and Installation Procedures
When replacing CAT Fuel Injector, always install brand-new matching sealing gaskets and O-rings. Tighten evenly in line with OEM standard torque values. After installation, fully bleed air from the fuel circuit and complete injector calibration using the CAT ET diagnostic tool.
STONE
Stone is a leading supplier of engineering machinery parts, focusing on providing high-quality parts for mining companies. Since its establishment in 2004, we have been based in Shanghai, China, and have built our own brand STONE, becoming a trusted choice in the industry. We are committed to providing a variety of parts including bulldozers, excavators and wheel loaders for well-known brands such as Caterpillar and Komatsu. Our product line covers a full range of OEM parts, such as Track Chain, Track Rollers, Sprocket, Excavator Buckets, Blades, Excavator Cylinders, Swing Circles, and various electrical and hydraulic components to ensure that our customers' stringent requirements for quality and performance are met.
quality
years experience
service
hours warrant
Q＆A
What faults on the excavator indicate the need to replace the CAT Fuel Injector?
If the following typical symptoms occur, the injector is likely worn or damaged and requires inspection or replacement:
1.Engine shakes at idle, hard to start in cold weather, and stalls occasionally
2.Weak digging power, sluggish performance under heavy loads, obvious power loss when climbing slopes
3.Black smoke from the exhaust pipe and sudden sharp rise in fuel consumption
4.Irregular abnormal engine noise and cylinder misfiring
5.Fuel injection fault codes detected via CAT ET diagnostic tool, excessive return oil flow and abnormal fuel atomization
Can I replace only one faulty injector or do I need to replace the whole set?
For minor single-cylinder faults, a single 249-0713 CAT Fuel Injector can be replaced separately. If the equipment accumulates high working hours, multiple cylinders show signs of aging, or the overall engine operating condition is poor, it is recommended to inspect and replace the full set. New and old injectors have inconsistent parameters, which will cause uneven fuel supply among cylinders, resulting in persistent shaking, unbalanced power and higher fuel consumption, and impair the operational stability of the whole machine.
Do I need to replace sealing rings and gaskets together with the fuel injector?
Hot Tags: cat fuel injector 249-0713 for 349d excavator, China cat fuel injector 249-0713 for 349d excavator manufacturers, suppliers, factory