CAT C9 Injector 242-0857 (2420857) – Precision injection for maximum engine performance
Precision injection for maximum engine performance
The high-pressure fuel injector, reference 242-0857 (2420857), is a high-precision electro-hydraulic component designed for motors Caterpillar C9. An essential component of the fuel system, it ensures a fine and perfectly controlled fuel atomization to optimize combustion in each cylinder. Its precise operation helps restore the engine's original power, reduce fuel consumption, and limit black smoke emissions during heavy-duty work. Compatible with CAT C9 engines used in the construction, industrial, power generation, and public works sectors.
Precision engineering and resistance to harsh environments
The robust design of the 242-0857 injector ensures consistent performance even under the most demanding operating conditions.
High Precision Spray Nozzle
Equipped with calibrated micro-orifices ensuring homogeneous fuel atomization for more complete combustion and better energy efficiency.
Advanced Electronic Injection Technology
The electronic actuation system allows precise control of the flow rate and injection timing to optimize engine performance under all loads.
High-Resistance Internal Components
Made from heat-treated materials to withstand high injection pressures, temperature variations, and long periods of intensive operation.
Enhanced waterproofing
Designed to maintain a perfect seal of the injection system and protect the engine against pressure loss or contamination.
Optimized benefits for your Caterpillar equipment
| Technical Advantage | Direct impact on operations |
|---|---|
| Complete and efficient combustion | Reduction in fuel consumption and polluting emissions. |
| Engine power restoration | Improved torque and performance under load. |
| Regular engine operation | Reduced vibration, misfires and improved idle speed. |
| Easier start-ups | Increased reliability during cold and hot starts. |
| Conformity to original specifications | Direct installation without modification of the injection system. |
Hardware Specifications and Compatibility
| Attribute | Specification |
| Manufacturer Reference | 242-0857 / 2420857 |
| Associated Engine Model | Caterpillar C9 |
| Part Type | High-pressure fuel injector |
| System Type | High-pressure electronic injection |
| Main Applications | CAT C9 engines for construction equipment, generators, industrial and marine applications |
| Sustainable Commitment | Robust design suitable for dusty environments, heavy loads and harsh climates. |
Kasparts' expertise to preserve your productivity
The injector 242-0857 This product provides a reliable solution to address power loss, excessive fuel consumption, hard starting, and excessive smoke emissions. Thanks to its high-precision design, it helps maintain optimal performance of the Caterpillar C9 engine while reducing maintenance and operating costs.
By choosing Kasparts for your spare parts, you are investing in the reliability, durability and continuity of your operations, even in the most demanding working conditions.

Reviews
There are no reviews yet.