Mercedes Sprinter Turbocharger – Garrett | NCV3 3.0L OM642 Diesel | #6420908980 (2010–2017)

A failing turbocharger on a NCV3 Sprinter doesn't just rob power — it can push oil into the intake and intercooler, foul the charge air system, and cause progressive engine damage that turns a turbo replacement into a much larger repair. This is the Garrett turbocharger for NCV3 Sprinters equipped with the 3.0L OM642 V6 diesel engine, a direct replacement that restores factory boost pressure, throttle response, and power delivery.

What This Part Does

The turbocharger uses exhaust gas energy to spin a turbine wheel, which drives a compressor wheel on the same shaft that forces additional dense air into the intake manifold — allowing the engine to produce significantly more power than an equivalent naturally aspirated engine. On the OM642, the turbo is a variable geometry design (VGT) with electronically controlled vanes that adjust the turbine's effective nozzle area to optimize boost delivery across the full RPM range. At low RPM, the vanes close to accelerate exhaust gas flow and spool the turbo quickly; at high RPM, they open to prevent over-boost and protect the turbo from excessive shaft speed. This Garrett unit features a machined billet compressor wheel for improved durability and service life over the original cast wheel design.

Common Symptoms of a Failing Turbocharger

• Noticeable loss of power, particularly under load or at highway speeds
• Slow or delayed throttle response with reduced acceleration
• Excessive black or blue smoke from the exhaust at startup or under boost
• Whistling, whining, or grinding noise from the turbo area under acceleration
• Boost pressure fault codes or engine entering limp mode
• Oil consumption with no visible external leak — oil pushed into the intake via failed turbo seals

When to Replace

Replace when shaft play is confirmed, when the turbo produces abnormal noise under boost, or when boost pressure fault codes persist after ruling out hoses, actuators, and charge air leaks. Also replace when oil contamination in the intake tract or intercooler is traced back to turbo seal failure. Always flush the charge air system and intercooler after replacing a failed turbo — metal debris from a failed compressor wheel can contaminate the entire charge air path.

NCV3 OM642 Specific — VIN Verification Required

This turbocharger is for NCV3 Sprinters equipped with the 3.0L OM642 diesel engine in models requiring the exhaust gas temperature probe. Turbocharger part numbers vary by engine tune, emissions configuration, and build date — always verify your engine code and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2017 Mercedes-Benz Sprinter 2500 – 3.0L OM642 (NCV3/W906)
• 2010–2017 Mercedes-Benz Sprinter 3500 – 3.0L OM642 (NCV3/W906)
• 2010–2017 Freightliner Sprinter 2500 / 3500 – 3.0L OM642 (NCV3)

✔ Billet compressor wheel — improved durability over original cast wheel design
✔ Includes electronic VGT actuator — pre-calibrated to the turbo
✔ Always flush charge air system and intercooler after replacing a failed turbocharger
✔ This part is VIN specific — always verify before ordering

Part Numbers

• Mercedes OEM: 6420908980 / A6420908980 / 642-090-89-80
• Full OEM with suffix: 642090898080
• Cross-reference: 642090898060 / 642090898087
• Manufacturer: Garrett — 777318-0002 (GT2056V)
• SKU: 6420908980