ELRING 199.340 Fuel Injectors

ELRING 199.340 Fuel Injectors are a high‑performance component designed for modern diesel and gasoline engines that require precise fuel delivery and robust thermal protection. These injectors combine advanced metallurgy, precision machining, and innovative sealing technology to deliver exceptional reliability in demanding automotive applications.

Key Features

Precision Engineering: Each injector is manufactured using high‑grade copper alloy, ensuring excellent conductivity and resistance to corrosion. The internal geometry is optimized for uniform fuel atomization, which improves combustion efficiency and reduces emissions.

Thermal Protection: A dedicated heat shield disc (Wärmeschutzscheibe) surrounds the injector body, protecting it from the high temperatures generated during operation. This feature extends component life and maintains consistent performance even under extreme engine loads.

Sealing Excellence: The injector incorporates a seal ring (Dichtring) that secures the nozzle holder against fuel leakage. The seal is engineered to withstand high pressure and temperature variations, ensuring long‑term reliability in both light‑duty and heavy‑duty vehicles.

Compatibility: Designed for a wide range of manufacturers—including MERCEDES‑Benz, CHRYSLER, DODGE, INFINITI, JEEP, FREIGHTLINER, and MITSUBISHI—the 199.340 injector fits models from the early 2000s to current production lines. Its dimensions (7.1 mm × 15 mm × 1.96 mm) match OEM specifications, making it a direct replacement for original equipment.

Applications

The ELRING 199.340 is ideal for:

• Diesel engines requiring high‑pressure fuel injection and low emissions.
Gasoline engines that benefit from precise atomization for improved throttle response. Commercial vehicles such as trucks, vans, and buses where durability is paramount. Performance tuning projects that demand reliable injector performance under increased load.

Installation Overview

Installing the ELRING 199.340 involves:

1. Removing the old injector and cleaning the nozzle holder to eliminate debris.
2. Aligning the new injector with the engine’s fuel rail, ensuring the seal ring sits flush against the housing.
3. Securing the injector with the supplied mounting hardware, tightening to manufacturer torque specifications.
4. Reinstalling the heat shield disc, if separate, and verifying proper clearance.
Testing the system for leaks and performance before returning the vehicle to service.

Performance Benefits

When integrated into an engine, the ELRING 199.340 delivers:

• Improved fuel economy through precise delivery and reduced pumping losses.
• Lower emissions thanks to consistent atomization and reduced unburnt hydrocarbons.
Enhanced engine responsiveness, particularly in high‑load scenarios. Extended injector lifespan due to superior material properties and thermal protection.

Quality Assurance

Each unit undergoes rigorous testing:

• Pressure tolerance tests up to 2000 psi to confirm structural integrity.
• Thermal cycling from –40 °C to +120 °C to validate heat shield performance.
Leakage checks ensuring the seal ring maintains a pressure rating of 150 bar. Dimensional verification against OEM tolerances with micrometer precision.

Maintenance Tips

To keep the ELRING 199.340 operating at peak performance:

• Regularly inspect the heat shield disc for cracks or wear that could compromise thermal protection.
• Check the seal ring integrity during routine maintenance; replace if any deformation is observed.
Use high‑quality fuel additives to prevent particulate buildup inside the injector. Follow manufacturer torque specifications when reinstalling to avoid over‑ or under‑tightening.

Conclusion

The ELRING 199.340 Fuel Injectors represent a blend of advanced materials, precise engineering, and robust design that delivers reliable performance across a broad spectrum of automotive applications. Whether you are maintaining a fleet of commercial vehicles or upgrading a high‑performance engine, this injector offers the durability, efficiency, and compatibility needed to meet modern driving demands.