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Old 11-21-2020, 09:57 PM   #1
Scooby Newbie
Member#: 520435
Join Date: Nov 2020
Default 2019 Wrx oil drain plug thread pitch

Hello all new here first post. I was changing my oil and I definitely over tightened the drain plug... I know I'm a dumby but it happened.. so I'm hoping it was only the plug and not the pan but before I pull it to see i wanna have a new one.. what size is the thread pitch for the 2019 wrx.. one site I see m20x1.5 and then another m16x11 any help greatly appreciated
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Old 11-23-2020, 12:22 PM   #2
Samurai Jack
Scooby Guru
Member#: 21145
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Not in my own time
2002 Enemy of Aku


Is the oil leaking? Is that why you think you have an issue or just the fact you over-tightened it?

Typically, if there is damage from over-tightening the oil pan drain plug, the damage is to the pan, not the plug.

Two options if true:
1. Replace pan
2. There are over-sized drain plugs that self-tap.

Obviously, if there is damage, don't do it again!
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Old 11-23-2020, 01:46 PM   #3
Scooby Specialist
Member#: 492327
Join Date: Oct 2018
Location: A car lounge in the midwest
19 WRX 16 STI
17Golf-R 16FiST 20Supra



This is the Fumoto valve I'm using on my 2019 WRX Limited.. so 16x1.5mm

If you know you broke the plug but not leaking, I'd just do the oil change using an extractor from the top.
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