Mercedes Engine / Fluid System O‑Ring A0239978548 – Original Equipment

Description

Ensure a reliable, leak-free seal with the genuine Mercedes‑Benz O‑Ring A0239978548. Designed to meet OEM specifications, this rubber seal provides precise fitment and durability for critical connections in engine, transmission, or fluid systems.

Over time, O‑rings can become brittle, cracked, or deformed due to heat, pressure, or chemical exposure, leading to fluid leaks, decreased system performance, and potential damage to connected components. Replacing worn O‑rings with the correct OEM part restores proper sealing and maintains system integrity. (spareto.com)

Key Features:

• Part Number: A0239978548

• Genuine Mercedes‑Benz OEM O‑Ring / seal

• Made from durable, heat-resistant rubber/elastomer material

• Provides precise, leak-free sealing for engine or fluid systems

• Direct replacement – exact fit without modification

Applications / Fitment Notes:
This O‑Ring is widely used in Mercedes‑Benz engines and related components such as oil lines, hoses, coolant systems, or other fluid connections. Always check your vehicle’s VIN or OEM parts catalog to confirm fitment before installation. (partsouq.com)

Why Choose OEM?

• Ensures exact size and material specification

• Prevents leaks that could damage expensive components

• Maintains system performance and vehicle reliability