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How to replace the alternator of the Lexus SC 430

Model: Lexus SC Z40 - Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Part: Alternator

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Video tutorial

Let's briefly go over the main instructions on how to disassemble and replace the alternator of the Lexus SC 430. First, we open the hood of the vehicle and begin to loosen and remove the alternator belt by loosening the tensioner with a 12 mm wrench.

Then, we unscrew the bolts securing the alternator and disconnect the electrical wiring to remove it, as shown in the video.

At this point, we perform the repair or replace the alternator with the new one, securing it properly and making the necessary connections; finally, we reconnect the V-belt.


Posted on 24 December 2025 by ScegliAuto


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Watch the video!


by ScegliAuto

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