Piaggio Genuine Vespa ET4 / Liberty / Skipper 125–150cc Intake Manifold 485587
Piaggio Genuine Vespa ET4 / Liberty / Skipper 125–150cc Intake Manifold 485587
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Product Description
Brand new official Piaggio factory intake manifold designed for widespread 125cc and 150cc four-stroke air-cooled Leader engine platforms. Precision-molded to exact factory inner diameter (33mm outer spigot), port alignment angles, and high-durometer rubber compound specifications, engineered to eliminate vacuum leaks, prevent dangerous lean running conditions, and restore stable idle and crisp throttle response.
Vehicle Compatibility
Engineered explicitly for Vespa, Piaggio, and Derbi 125cc/150cc 4-stroke air-cooled automatic scooter platforms utilizing Leader engine architectures.
Verified catalog fitment layout:
| Make | Model Family | Engine Type / Displacement | Model Years |
| Vespa | ET4 125 / 150 (Leader Engine Models) | 124cc–150cc (4-Stroke Air-Cooled Leader 4T AC) | 2000–2005 |
| Piaggio | Liberty 125 / 150 / Skipper 125 / 150 / ZIP 125 | 124cc–150cc (4-Stroke Air-Cooled Leader 4T AC) | 1998–2006 |
| Derbi | Boulevard 125 / 150 | 124cc–150cc (4-Stroke Air-Cooled Leader 4T AC) | 2002–2005 |
Fitment & Technical Details
Clean the cylinder head intake mating surface completely, removing all traces of old gasket material or rubber bonding residue. Inspect the mounting studs and vacuum nipple connection line, fit the manifold with the correct orientation, and cross-torque the flange nuts evenly to prevent flange distortion or vacuum leaks.Verification: Manifold seals airtight against the cylinder head and carburetor spigot with zero secondary air intrusion, maintaining steady intake vacuum pressure across all throttle transitions.
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.
