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Piaggio Genuine X9 500 / Nexus 500 Fuel Return Hose 621616
Piaggio Genuine X9 500 / Nexus 500 Fuel Return Hose 621616
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Product Description
Genuine fuel-resistant flexible rubber return hose (Tubo Ritorno). Connects the fuel injection pressure regulator/rail output back to the fuel tank assembly on 500cc MASTER engine maxi-scooters, routing excess fuel back to the tank to maintain stable fuel pressure.
Vehicle Compatibility
Standard Genuine replacement fitment across 500cc 4-stroke liquid-cooled MASTER engine maxi-scooter platforms within the Piaggio Group:
| Make | Model | Chassis / Engine Variant | Model Years | Application |
| Piaggio | X9 500 / X9 500 Evolution / ABS | M27000 / ZAPM27000 (500cc 4T LC) | 2001–2008 | Fuel Tank Return Line Hose |
| Gilera | Nexus 500 / Nexus 500 SP / Euro 3 | ZAPM35100 / ZAPM35200 (500cc 4T LC) | 2003–2011 | Fuel Tank Return Line Hose |
| Aprilia | Atlantic 500 / Sprint | PT000 / PT002 (500cc 4T LC) | 2001–2008 | Fuel Tank Return Line Hose |
| Aprilia | Scarabeo 500 / Light | VR000 / VR002 (500cc 4T LC) | 2002–2010 | Fuel Tank Return Line Hose |
Fitment & Technical Details
Replaces earlier revision part 576759. Pre-shaped NBR fuel hose designed specifically to handle pressurized unleaded fuel and engine bay heat without swelling or degrading. Secures onto the tank fuel pump flange return union using factory spring hose clamps (232230). Ensure the line is routed clear of the rear engine pivot movement during installation.
Important: Please ensure the part number matches your motorbike before purchasing. If you have any questions about the part or its compatibility, feel free to contact us. We’re here to help!
At Dmmotorcycles, we’ve specialized in vintage and vintage sports motorcycles and parts directly from Japan since 1998. We stock a wide selection of rare genuine and high-quality aftermarket parts and continually update our inventory to meet growing demand.
Looking for a specific part? Don’t hesitate to ask! We may have it in stock even if it’s not listed online. If not, we’ll do our best to source it for you.
We’re also happy to provide guidance on installation and offer excellent after-sales support to ensure your satisfaction.
Shipping Information
We ship worldwide, carefully inspecting and securely packing all parts to ensure safe delivery. Your order will be insured and shipped quickly, with the best available shipping option chosen for speed and reliability.
Please note:
- All parts are shipped from Cyprus (Europe).
- Customers outside the EU may incur additional import taxes based on the value of the item.

How we handle your order in 4 steps
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1. Order Verification
We confirm the order and make sure the correct part number, quantity, and any special requests match what’s on the sales confirmation
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2. Quality Check
Since our parts are new old stock we Inspect the parts for any defects, scratches, or missing components to ensure it meets quality standards. otherwise will notify you before proceeding with the order.
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3. Safe and Secure packaging
- Protective Wrapping: We use bubble wrap or foam padding to wrap the part, focusing on sharp edges or delicate components.
- Boxing: We place the wrapped part inside a sturdy box, filling gaps with packing materials to prevent movement.
- Sealing and Labeling: Securely tape the box and attach the shipping label, including orientation-specific markers like "Fragile."
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4. Finalizing of Shipment
We confirm the shipping address and contact details, give the package to the Post, keep the tracking number, and then send it to the customer along with the shipment notification.