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Genuine Piaggio 50cc 2T SAS Secondary Air Box SAS 8318594
Genuine Piaggio 50cc 2T SAS Secondary Air Box SAS 8318594
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Product Description
Factory-original Secondary Air System (SAS) auxiliary air filter box housing assembly. Feeds clean, filtered fresh air into the SAS emissions pulse-valve/exhaust stream on Hi-PER2 50cc 2-stroke engines to reduce unburnt hydrocarbon emissions and comply with Euro 2 regulations.
Vehicle Compatibility
Standard factory fitment for Piaggio Group 50cc 2-stroke scooter engines (Euro 2 / Hi-PER2):
| Make | Model | Engine / Chassis Variant | Application |
| Piaggio | Liberty 50 2T / Fly 50 2T / NRG Power 2T | 50cc 2T E2 (2004–2017) | SAS Auxiliary Air Box |
| Piaggio | Typhoon 50 2T / Zip 50 2T | 50cc 2T E2 | SAS Auxiliary Air Box |
| Vespa | LX 50 2T / S 50 2T / Primavera 50 2T | 50cc 2T E2 | SAS Auxiliary Air Box |
| Aprilia | SR 50 R / SRMotard 50 / Scarabeo 50 2T | 50cc 2T Piaggio Engine | SAS Auxiliary Air Box |
| Gilera | Runner 50 SP / Stalker 50 | 50cc 2T E2 | SAS Auxiliary Air Box |
Fitment Details
Mounts near the secondary air reed valve and flywheel cover casing. Ensure internal foam filter element is clean and properly seated, and secure all secondary air supply hoses with spring tension clamps to prevent unmetered air leaks into the exhaust valve line.
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.