Mercedes Sprinter Turbocharger – Garrett | T1N 2.7L OM647 Diesel | #6470900280 (2003–2006)

A failing turbocharger on a T1N Sprinter doesn't just rob power — it can push oil into the intake and intercooler, contaminate the charge air system, and cause progressive engine damage that turns a turbo replacement into a much larger repair. This is the Garrett GTA2256V turbocharger for T1N Sprinters equipped with the 2.7L OM647 5-cylinder diesel engine, a direct Genuine Garrett 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 a naturally aspirated engine of the same displacement. On the OM647, the Garrett GTA2256V is a variable geometry turbine (VGT) design with electronically actuated vanes that vary the turbine's effective nozzle area to optimize boost across the RPM range — delivering strong low-end torque and controlled top-end boost. When the turbo's shaft bearings wear, the compressor or turbine wheel contacts the housing, or the VGT actuator fails, boost pressure drops — triggering reduced power, fault codes, and in severe cases, oil consumption and blue smoke from the exhaust.

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 is traced back to failed turbo seals. 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.

T1N OM647 Specific — VIN Verification Required

This turbocharger is for T1N Sprinters equipped with the 2.7L OM647 5-cylinder diesel engine. It is not compatible with NCV3 Sprinters equipped with the 3.0L OM642 or VS30 Sprinters. Always verify your engine code and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2003–2006 Dodge Sprinter 2500 – 2.7L OM647 Diesel (T1N)
• 2003–2006 Dodge Sprinter 3500 – 2.7L OM647 Diesel (T1N)
• 2004–2006 Mercedes-Benz Sprinter 316 CDI – 2.7L OM647 Diesel (T1N)
• 2004–2006 Mercedes-Benz Sprinter 416 CDI – 2.7L OM647 Diesel (T1N)

✔ Genuine Garrett replacement — GTA2256V (736088)
✔ Includes mounting gaskets
✔ Always flush charge air system and intercooler after replacing a failed turbocharger
✔ Always verify VIN before ordering

Part Numbers

• Mercedes OEM: 6470900280 / A6470900280 / 647-090-02-80
• Garrett Model: GTA2256V — 736088 / 736088-5006S
• Cross-reference: 6470900080 / 68028728AA
• Manufacturer: Garrett — 73608
• SKU: 6470900280