Description
The OEM Temperature Sensor O-Ring (Part Number: A0229979848) is a genuine Mercedes-Benz sealing component designed to provide a tight, leak-free seal for temperature sensors installed in engine coolant, oil, or intake systems. This O-ring prevents fluid leaks and ensures accurate sensor readings by maintaining proper system pressure.
Manufactured to Mercedes-Benz factory specifications using high-quality, heat- and chemical-resistant elastomer materials, this O-ring offers precise fitment, durability, and long service life. A worn or damaged O-ring can cause coolant or oil leaks and incorrect temperature readings. Replacing it with an OEM O-ring restores proper sealing and reliable sensor performance.

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