YOSHIMURA DUPLEX Small Parts BUY NOW(*´ω`*)Replacement Parts

If you have a Yoshimura Duplex installed and have never replaced it before
this is a must-see

The other day, I also got my hands on a Yoshimura Duplex Cyclone for the Zephyr X.

It’s in that typical Duplex condition—spring flying off and gasket popping out.
Wait, what was the part number again? (‘Д’)

When I search around, I end up finding my own blog…
That’s amazing~
If I organize it more carefully, it becomes more useful? Profitable? It’s growing.

123-001-0000 Chamber Stopper
124-001-0000 Chamber Spring
125-001-0000 Chamber Washer
126-001-0000 Chamber Gasket

Only the first three digits of the number change~it’s easy to remember(*´ω`*)

Currently, 125-001-0000 is out of stock and unavailable.

Spring breakage leads to stopper loss
You definitely want to install genuine Yoshimura parts properly.

This applies to aftermarket mufflers in general
it’s good to replace the spring after a certain amount of mileage.
It doesn’t cost much, so please do it.

The washers and gaskets also become all worn out…
Don’t ignore it—get the parts while they’re still available.

It’s quite rusty and corroded.
If this part is in good condition, it reduces damage to the exhaust pipe side.

125-001-0000 Chamber Washer is currently out of stock
You can also use the washer by adding an R-shape yourself.

123-001-0000 Chamber Stopper *4

124-001-0000 Chamber Spring *4

126-001-0000 Chamber Gasket *4

I think it’s a good idea to order 2 sets at a time.
Even inexpensive items can become unavailable at any time…
It makes you worry, doesn’t it?

If you polish them during replacement, I think your attachment to them will grow.

Table of Contents “Oil-Cooled” Parts Summary
OEM Parts/Yoshimura/FCC/Repro

(*´Д`)Wow! It’s in stock at Monotaro too.

PartsBoxSystemJapan
¥860 (2026/09/22 13:35時点 | 楽天市場調べ)
PartsBoxSystemJapan
¥860 (2026/09/22 13:35時点 | 楽天市場調べ)
ヨシムラ
¥159 (2023/08/17 18:57時点 | Yahooショッピング調べ)
ヨシムラ
¥106 (2023/08/17 18:58時点 | Yahooショッピング調べ)
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