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Piaggio Genuine 50cc-180cc 2T Reed Valve Assembly 479285
Piaggio Genuine 50cc-180cc 2T Reed Valve Assembly 479285
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Product Description
Piaggio Genuine factory intake reed valve block assembly (Valvola Lamellare). Installed between the intake manifold rubber union and the engine crankcase mouth, it features vulcanized rubber sealing faces and flexible fiber/metal reed petals that maintain one-way fuel/air charge flow into the crankcase.
Vehicle Compatibility
Standard Genuine replacement fitment across 50cc to 180cc 2-stroke Piaggio, Gilera, Vespa, Aprilia, and Derbi platforms (both AC and LC Hi-Per2 and Big Block engines):
| Make | Model | Chassis / Engine Variant | Model Years | Application |
| Piaggio | Zip 50 2T / Zip SP / Fast Rider | ZAPC25000 / ZAPC11000 / SSP1T | 1996–2017 | Engine Intake Reed Valve Assembly |
| Piaggio | Typhoon 50 / NRG MC2 / MC3 / Power | ZAPC29000 / ZAPC18000 / ZAPC45100 | 1995–2020 | Engine Intake Reed Valve Assembly |
| Gilera | Runner 50 / 50 SP / Purejet | ZAPC14000 / ZAPC36200 / ZAPC46100 | 1997–2020 | Engine Intake Reed Valve Assembly |
| Gilera | Runner FX 125 / FXR 180 2T | ZAPM07000 / ZAPM08000 (125/180cc 2T) | 1997–2003 | Engine Intake Reed Valve Assembly |
| Vespa | ET2 50 / LX 50 / S 50 / Primavera 50 | ZAPC16000 / ZAPC38100 / C53200 | 1997–2017 | Engine Intake Reed Valve Assembly |
| Aprilia | SR 50 R / SR Motard 50 | ZVFA00 / ZAPC50200 (Piaggio 2T Engine) | 2003–2020 | Engine Intake Reed Valve Assembly |
Fitment & Technical Details
Legacy 6-digit reference 479285, fully superseded across master dealer catalogs by part numbers 82775R, 82727R, and 830185. Secures to the upper crankcase intake port using two M6 socket-head bolts beneath the rubber intake manifold flange. Always install a new intake reed valve base gasket (285080 / 82774R) to prevent crankcase air leaks.
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.