Mercedes Sprinter Turbo Charge Air Pipe – Genuine OEM | NCV3 3.0L OM642 | #6420905937 (2010–2022)

A cracked or leaking turbo charge air pipe on a NCV3 Sprinter bleeds pressurized boost before it reaches the intake manifold — causing power loss under load, sluggish acceleration, under-boost fault codes, and a boost leak that progressively worsens until the pipe is replaced. This is the Genuine Mercedes-Benz OEM turbo charge air pipe for NCV3 Sprinters equipped with the 3.0L OM642 V6 diesel engine, a direct replacement that restores a sealed, unobstructed charge air path between the turbocharger and intercooler system.

What This Part Does

The turbo charge air pipe is a rigid molded duct that routes compressed, hot-side charge air from the turbocharger outlet toward the intercooler. Unlike the flexible rubber hoses at the connection points, the charge air pipe is a structural component that must maintain its form under sustained boost pressure and the cyclic thermal stress of heating and cooling with each engine cycle. It connects to the flexible hose sections at each end using bayonet-style quick-disconnect fittings secured by metal clips — a system that is reliable when intact but creates an immediate boost leak if the pipe cracks, its ends split, or the connection points degrade. On the OM642, this hot-side charge air plumbing runs from the turbocharger compressor outlet through the engine bay to the intercooler inlet, and even a small crack in the pipe wall or fitting area causes immediate, detectable boost loss.

Common Symptoms of a Failing Charge Air Pipe

• Hissing or whooshing sound from the engine bay under boost or during acceleration
• Loss of power or sluggish throttle response, particularly under load at speed
• Under-boost fault codes or boost pressure plausibility codes from the ECU
• Black smoke under hard acceleration from uncorrected air-to-fuel ratio caused by boost loss
• Visible cracking, splitting, or deformation at the pipe body or connection ends

When to Replace

Replace when the pipe is found cracked, split at a fitting end, or physically deformed. Also replace any time the boost system is being inspected for a leak and this pipe shows age-related degradation — surface cracking that hasn't yet caused a full split will eventually fail under load. Always replace the flexible hose sections and clips at both connection points at the same time.

NCV3 OM642 Specific — VIN Verification Required

This charge air pipe is for NCV3 Sprinters equipped with the 3.0L OM642 V6 diesel engine. It is not compatible with NCV3 Sprinters equipped with the 2.1L OM651 or VS30 Sprinters. Always verify by VIN and confirm the existing part number before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2018 Mercedes-Benz Sprinter 2500 – 3.0L OM642 (NCV3/W906)
• 2010–2018 Mercedes-Benz Sprinter 3500 – 3.0L OM642 (NCV3/W906)
• 2010–2018 Freightliner Sprinter 2500 / 3500 – 3.0L OM642 (NCV3)

✔ Always replace flexible hose sections and connection clips at the same time
✔ Always verify by VIN — charge air pipe configurations vary by build date and engine spec

Part Numbers

• Mercedes OEM: 6420905937 / A6420905937 / 642-090-59-37
• Cross-reference: 9065282582 / 9065282682
• Manufacturer: Genuine Mercedes-Benz
• SKU: 6420905937OE