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Genuine Mercedes Vacuum Valve Block – Engine Vacuum System, Part #1298001478
About this item
If you're chasing down vacuum leaks or restoring that smooth Mercedes idle, this is the piece you need.
It's a genuine Mercedes vacuum valve block, part number 1298001478.
No knock-offs, no imitations—just the real deal from the three-pointed star.
This little component is critical for the engine vacuum system, helping everything from HVAC controls to cruise control work properly.
It's brand new, ready to bolt on, and direct fit for the models that use it.
The interchange numbers are 129 800 14 78 if you want to double-check compatibility.
Simple part, huge impact.
Keep your Mercedes breathing right with this OEM block.
USD$ 32.50 
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