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How to replace the transmission oil in the Harley-Davidson Sportster?

Model: Harley Davidson Sportster
Part: Transmission fluid

Video tutorial

In this tutorial, we will see how to replace the transmission oil in a Harley-Davidson Sportster, a very simple and quick operation. First of all, let's make sure that the engine is cool enough to operate safely.

Then, we position a container underneath the transmission case, locate the drain hole bolt, and unscrew it using a 16mm socket wrench. We let all the oil in the system drain out, then tighten the bolt, open the fill hole cap with a 4mm hex key, and insert the necessary amount of oil to reach the maximum level.


Posted on 27 December 2025 by ScegliAuto


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by ScegliAuto

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