Intercooler Pipe O-Ring Seal – Mercedes W906 / W639 | OEM A6420940051
The sealing ring of the intercooler pipe in Mercedes W906, W639 (A6420940051) is an important component of the engine turbocharging system. It is designed to securely and properly mount the turbocharger to the engine and intercooler pipe. Without this seal, the turbocharger would not be able to function properly and performance would suffer significantly.
Fits OEM #A6420940051.
When to Inspect This Part
- whistling or excessive crankcase vacuum
- smoke after warm-up
What's Included
- 1 × Intercooler Pipe O-Ring Seal
OEM Part Numbers and Vehicle Fitment
Additional confirmed fitment
- Mercedes-Benz Mercedes Benz Viano (w639)
- Mercedes-Benz Mercedes Benz Sprinter (w906)
- Mercedes-Benz Mercedes Benz Vito (w639)
Part Number / PN
A6420940051, 6420940051
Important Fitment Check
Before ordering, compare the part design, dimensions, connectors, and every available OEM/P/N marking with the part installed on the vehicle. Matching OEM/P/N A6420940051 is the primary fitment check.
FAQ
How do I confirm fitment for this Intercooler Pipe O-Ring Seal?
Compare the exact OEM/P/N and physical design with the installed part. The primary reference is A6420940051. Do not select the part by vehicle model alone.
What symptoms may indicate a problem with this Intercooler Pipe O-Ring Seal?
Confirmed symptoms include whistling or excessive crankcase vacuum, smoke after warm-up. Diagnose the original assembly before ordering so another fault is not mistaken for this part.
What is included with this Intercooler Pipe O-Ring Seal?
The confirmed kit contents are: 1 × Intercooler Pipe O-Ring Seal.
Does this listing include the complete surrounding assembly?
No. It includes only the item or repair components identified for this SKU. Inspect related parts separately and replace them only when diagnosis confirms a fault.
What should be checked before installation?
Check the OEM/P/N, dimensions, connectors, orientation, and condition of the mating components. Installation should follow the correct service procedure for the specific vehicle and assembly.
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Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings