Aprilia 856860 Radiator Air Deflector – Dorsoduro 750, Factory and 900 (2008-2020)

The Aprilia 856860 air deflector is the original central bodywork duct for the Dorsoduro: it is the part that directs the airflow towards the radiator and channels it out of the side panels, keeping it away from the rider's legs. It may look like an aesthetic detail, but it is a functional component: when it is missing or broken, some of the air is free to bypass the radiator instead of flowing through it, and temperatures rise in queues or traffic. It is also one of the parts that breaks first in even a slight fall, or that gets broken when the side panels are removed without loosening all the screws: the plastic is thin and the mounting tabs are fragile. This is the original Aprilia spare part, with the exact fittings and shape — the ones that make the side panels fit back into place without forcing.

✓ Strengths

• Original Aprilia spare part — factory code 856860, from the "Central Bodywork" section of the official catalog
• Standard shape and fittings: the side panels fit back into place without force or adaptation
• Covers the entire Dorsoduro family — 750, 750 Factory, and 900, from 2008 to 2020
• Restores correct airflow to the radiator, important in traffic and summer use
• Restores the aesthetics of a motorcycle missing an internal bodywork part
• Simple installation: accessed by removing the side panel

Technical features

Vehicle compatibility

List taken from the official Piaggio (B2B) spare parts catalog.

Recommended products

If you are tidying up the central bodywork of your Dorsoduro, in our catalog you will find the original screws and rubber grommets from the same section, as well as maintenance spare parts for the motorcycle. After a fall, it is also advisable to check the levers, mirrors, and protections: these are the parts that get damaged along with the plastics.

Perfect for

• Those who broke the deflector in a fall or when removing the side panels and want a new original part, not a used one with cracks
• Those who bought a used Dorsoduro that is missing the part entirely
• Workshops and body shops that are repairing a motorcycle after an accident
• Those who notice high temperatures in traffic and have discovered that the duct is broken or missing

Frequently Asked Questions

What is the Aprilia 856860 part?
It is the deflector, or duct, for the Dorsoduro's radiator air. In the official catalog, it appears in the "Central Bodywork" section under the designation "Canalisation". It directs the airflow through the radiator and channels it outwards from the side panels.

Which Dorsoduro models does it fit?
It fits the Dorsoduro 750 ABS and NOABS from 2008 to 2016, the Dorsoduro Factory 750 from 2010 to 2013, and the Dorsoduro 900 Euro 4 ABS from 2017 to 2020, in the various EMEA, APAC, LATAM, and NAFTA specifications.

Is it really necessary or just aesthetic?
It is necessary. Without the duct, some of the air bypasses the radiator instead of flowing through it, and temperatures rise, especially at low speeds and in traffic. It also has a finishing function, as it closes the compartment behind the side panel.

Is it difficult to replace?
No, it is accessed by removing the side panel. The only precaution is to loosen all screws before pulling the plastic: the mounting tabs of the Dorsoduro side panels are thin and break easily.

New or used, which is better?
Used parts for this code are readily available, but they almost always come from crashed motorcycles and arrive with cracks or already glued tabs. The new original part has intact fittings and fits back into place without forcing, which makes all the difference on a bodywork plastic part.