Bosch 0986441559 Unit Injector Diesel Fuel Injection System

The Bosch 0986441559 is a genuine OEM unit injector (also known as a pump-nozzle unit) designed for diesel fuel injection systems. This electronically controlled single-cylinder injection pump features an integrated injection nozzle and solenoid valve that installs directly into the cylinder head of the diesel engine.

Key Features:

• Genuine Bosch OEM quality with precise manufacturing tolerances
• Integrated high-pressure pump and injection nozzle in one compact unit
• Electronically controlled solenoid valve for precise fuel metering
• Eliminates high-pressure fuel lines between pump and nozzle
• Tested to exact OE specifications for optimal performance
• Designed for VW/Audi 1.4-1.9 TDI diesel engines

The unit injector system offers superior fuel atomization and combustion efficiency by generating high injection pressure directly at the combustion chamber. Each injector serves a single cylinder and is actuated by the engine camshaft via a rocker lever. The fast-switching solenoid valve precisely controls injection timing and fuel quantity, ensuring optimal engine performance, fuel economy, and emissions compliance.

Cross-Reference Part Numbers: 0414720115, 0414720202, 0414720206, 0414720208, 0414720213, 0414720215, 0414720265, 0986441509, 038130073AG, 038130073AM, 038130073AQ, 038130073S, 038130079D, 038130079DX, 038130079GX

Bosch is the leading original equipment supplier of diesel fuel systems worldwide, with over 75 years of experience in diesel injection technology. This injector is manufactured with continuous improvements and the latest component upgrades to ensure reliable operation and long service life.