Mercedes Sprinter Fuel Injector – Genuine OEM | OM642 3.0L V6 | #6420701287 (2010–2018)

DESCRIPTION:

Common rail fuel injectors on the OM642 are precision components operating at extremely high pressure — and when one starts to fail, it shows immediately. Rough idle, misfires on a specific cylinder, excessive smoke, and increased fuel consumption are all classic signs of an injector that's worn, clogged, or leaking. This is the genuine Bosch OEM common rail injector for 2010–2018 Sprinters with the 3.0L OM642 V6 — sold individually, with six required per engine.

What This Part Does

The common rail fuel injector delivers a precisely metered, high-pressure spray of diesel fuel directly into the combustion chamber at exactly the right moment and in exactly the right quantity. The OM642 uses a high-pressure common rail system operating at up to 1600 bar — tolerances are measured in microns. Even minor wear in the nozzle tip, a sticking solenoid, or an internal leak causes combustion irregularities that the ECU can detect and flag with misfire or fuel trim codes.

Common Symptoms of a Failing Injector

• Rough idle or misfires, especially on cold start
• Cylinder contribution fault codes (specific cylinder misfiring)
• Excessive black or white smoke under load
• Increased fuel consumption
• Hard starting or long crank times

Important: 2010+ vs. 2007–2009 Sprinters

This injector (6420701287 / Bosch 0445116027) is for 2010–2018 NCV3 and VS30 Sprinters only. The 2007–2009 early NCV3 Sprinter uses a different injector — part number 6420701587 / Bosch 0445115061. Always confirm your model year and VIN before ordering.

Fitment

• 2010–2018 Mercedes-Benz Sprinter 2500 – 3.0L V6 Diesel (OM642)
• 2010–2018 Mercedes-Benz Sprinter 3500 – 3.0L V6 Diesel (OM642)
• 2010–2017 Freightliner Sprinter 2500/3500 – 3.0L V6 Diesel (OM642)

Always verify your VIN before ordering. Contact us and we'll confirm fitment before you buy.

Part Numbers

• Mercedes OEM: 6420701287 / A6420701287 / 642-070-12-87
• Bosch: 0445116027 / 0445116028
• Cross Reference: 0986435404, 0986435406, 68028404AA
• SKU: 6420701287N