2A000021, Union, Aprilia, Derbi, Moto Guzzi, Vespa, Gilera, Piaggio
Guaranteed
Genuine
Piaggio
Parts
The Union is number 4 in the part drawing below.
- Brand(s):
- Aprilia, Derbi, Moto Guzzi, Vespa, Gilera, Piaggio
- Part number:
- 2A000021
- Description:
- Union
- Stock Availability:
- If your part is not in stock, it will take 3-5 days to reach MSP
Price: EUR 87.73 inc. VAT
Unsure if it’s the right part?
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Good site easy to manage
Max Baker romax
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Good service
Baz
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Exellent! I have done 2 trades with MSP, no problems good comunication and quality parts.
Gaute
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I found everything I needed at the dealer. You can also get a discount
Andrejs Zonbergs
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Quick delivery.spot on.
john haswell
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Every time, everything perfect!
Christos Petropoulos-trakas
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The parts arrive quickly and on time, they fit perfectly. And it's very convenient that there is a detailed drawing to help you figure out exactly what you're looking for.
Иван Желязков
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Easy to navigate website & reasonable postage considering delivery from the Netherlands to UK. Found what I needed for my 22 year old GSXR. Would definitely use MSP again
Stevie G
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The right parts and fast delivery
Göran Persson
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Perfect, recommended
Szabolcs Banos
The Union is a genuine spare part manufactured by Piaggio so you have peace of mind the Union part being sold by Motorcycle Spare Parts is both original and new.
Part number 2A000021 is a fuel system vacuum union connector used on the throttle body assembly of the Aprilia Caponord 1200 and Caponord 1200 Rally models. It acts as a junction point for vacuum or breather hoses, playing a direct role in maintaining stable intake pressure and correct engine management signals.
Manufactured to precise OEM tolerances, this connector must seal correctly to avoid vacuum leaks that can cause unstable idle, hesitation, or stalling. It is typically replaced during throttle body service or when age-related cracking is found.
