RX - 3rd Gen (2010-2015) Discussion topics related to the 2010 - 2015 RX350 and RX450H models

Rear differential fill plug part number?

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Old 10-14-20, 03:32 PM
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thisguy_06
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Default Rear differential fill plug part number?

As title states, does anyone have the part number on hand?

I was starting to change out the rear differential fluid but stopped since I'm pretty sure I'm going to need a new one. My 10mm hex is really doing a number on the head of the bolt.
Old 10-15-20, 05:03 AM
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Clutchless
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Start spraying it with PB Blaster then give a couple of days to soak in.

90341-18034 rear filler plug
and the same parts fit both Japan and North American built models

12157-10010 plug gasket

90341-18051 drain plug

You can look it up yourself here,

https://www.lexuspartsnow.com/parts-...ferential.html
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Old 10-15-20, 06:23 AM
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thisguy_06
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Thanks so much for that.
Old 10-15-20, 08:27 PM
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salimshah
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Originally Posted by thisguy_06
As title states, does anyone have the part number on hand?

I was starting to change out the rear differential fluid but stopped since I'm pretty sure I'm going to need a new one. My 10mm hex is really doing a number on the head of the bolt.
Dont touch the drain plug till you can loosen the filler plug.

Salim
Old 10-16-20, 04:31 AM
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RX in NC
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^^ One of the biggest mistakes that far too many inexperienced DIY owners make, regardless of marque.
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