Piaggio 850055 Diesel Fuel Pump – Quargo and Quargo Diesel 750 (2004-2017)

The Piaggio 850055 diesel fuel pump is the mechanical AC pump that transports diesel from the tank to the injection pump on the Piaggio Quargo. It is intended for the Quargo from 2007 to 2017 and the Quargo Diesel 750 cc from 2004 to 2006. It is not electric: it is mechanically operated by the engine via the lever that rests on the eccentric. The part comes with fittings protected by caps and the red gasket already mounted on the dome. Code 850055, new original spare part.

✓ Strengths

• Original Piaggio spare part – the market is full of equivalents for this code that cite the 850055 reference: here you will find the part with the manufacturer's code.
• Protected fittings – the two inlet and outlet diesel ports arrive capped, so the internal circuit remains clean until assembly (observed from the product photograph).
• Gasket already in place – the red ring between the body and the dome is fitted as standard (observed from the photograph).
• Light alloy body – silver-colored casting with slotted fixing flange and steel control lever (observed from the photograph).
• Typical maintenance spare part – on Quargos of a certain age, the AC pump is among the main causes of difficult starting and power loss.

Technical specifications

* data taken from product photographs, not declared in the Piaggio catalog.
** indicative value: weight is not declared in the catalog. A reseller indicates 0.300 kg for the equivalent pump.

Vehicle compatibility

Not sure about your Quargo version? Contact us for more information: we will confirm the exact code based on the chassis number before you order.

Who it's perfect for

It is the spare part for those who have a Quargo that struggles to start, loses power under load or stalls and has already checked the fuel filter and lines. It interests workshops that deal with work trucks and artisans or horticulturists who work with the Quargo every day: on a vehicle that needs to be on the road, mounting the original instead of an equivalent avoids having to revisit it after a few months. It is also the right opportunity for those who don't care about the box and want the manufacturer's part at the lowest price.

Frequently asked questions

Does the damaged packaging mean the part is used?
No. The pump is new and has never been mounted on a vehicle: what has been damaged is only the outer cardboard, due to storage or transport. The spare part inside is intact, with the fittings still capped and the gasket in place, and is covered by the manufacturer's warranty.

How do I know if my Quargo's fuel pump needs changing?
Typical symptoms are long starting, especially when cold, loss of power uphill or under full load, sudden stalls and difficult restarts after a long stop. Before replacing it, it is advisable to rule out a clogged fuel filter, dirty pre-filter and cracked pipes that draw in air: these cause very similar symptoms.

Is this pump an original Piaggio part or an equivalent?
It is the original Piaggio spare part with code 850055. On the market, there are several compatible pumps with the same reference – RMS, Magneti Marelli, Meat & Doria and retailers' own brands – which cost less but are not the manufacturer's part, and often have a shorter warranty.

Does it also fit the Porter Diesel?
No, the Porter 1400 Diesel uses a pump with a different code. This 850055 is the code provided for the Quargo from 2004 to 2017. If you have a Porter, write us the model and year and we will indicate the correct spare part for your vehicle.