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?
-
Good service and quality parts.
Ian Herpe
-
Ordered parts easily online. They were dispatched very promptly and delivered by royal mail - the only company that can meet a delivery promise. Excellent service everytime. Its a pleasure ordering stuff from msp
Mr rik booth
-
Great source for MC parts. Time and time again I have bought parts for my Kawasaki Versys-X 300 and MSP has delivered every time. Thanks MSP. Highly recommended.
Tormod Kayser
-
Good quality parts, well packaged and superb delivery service.
John Morgan
-
Fast delivery. Good range of products.
Dean
-
It’s easy to find the part you need, given the bike schematics. Received fairly quick, original part, fits perfectly, so my zx12r is chargin the battery once again. Happy with MSP.
Janos Hajner
-
Supplies and delivered with no fuss fast the exact parts ordered.
John
-
The parts I had ordered were OEM. My order arrived accurate and in a short time. Definitely pleased with the services provided 💯✊🏾
Reddy
-
The best in the world, thank you!
Tomislav Rugole
-
They had the right part in stock. Price was ok. It was sent and delivered promptly. All good!
Matthew Duffell
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.
