Piaggio 8329915 Flywheel Side Cover Complete – Gilera GP 800 and Aprilia SRV 850 (2007-2014)

The complete Piaggio 8329915 flywheel side cover is the right crankcase of the twin-cylinder engine that equips the Gilera GP 800 and the Aprilia SRV 850. It is the aluminum alloy casting that encloses the crankcase on the flywheel side and houses the circular stator seat (observed from product photographs). It is replaced when the crankcase is cracked, scratched after a fall, or no longer holds on the sealing surface. This is an original Piaggio Group spare part, with the catalog name "Coperchio L. Volano compl." (Flywheel L. Cover complete).

✓ Strengths

• Original Piaggio Group spare part – code 8329915, the same casting as the original equipment
• Complete cover – not just a simple cap or small cover: it is the entire flywheel side crankcase
• Die-cast aluminum alloy with sealing surfaces and seats already machined (observed from product photographs)
• Integrated stator seat – circular housing with a central perforated flange on the inner side (observed from product photographs)
• Metallic gray exterior finish with cooling fins and inspection cap (observed from product photographs)
• Direct mounting – holes, planes, and dimensions identical to the original, no adaptation needed

Technical specifications

Vehicle compatibility

List taken from the official Piaggio spare parts catalog (B2B). If your vehicle is not in the table, please write us the VIN number before ordering.

Who is it perfect for

It is the spare part for those who are keeping a GP 800 or an SRV 850 alive — two discontinued maxiscooters, with engine spare parts now rare — and find themselves with the flywheel side crankcase damaged by a fall, an impact, or a leak on the sealing surface. It is also the part needed by those who are putting a recovered engine back on the road: without the right cover, the stator and flywheel do not have their seat. Being an original casting, the planes, holes, and dimensions match the crankcase, which no adapted spare part can guarantee.

Frequently asked questions

Which motorcycles does it fit?
On Aprilia SRV 850 4T 8V E3, ABS and NO-ABS versions (2012-2014), and on Gilera GP 800 in the 2007-2008, 2009-2011 series and in the GP 800 Centenario of 2009. The list comes from the official Piaggio spare parts catalog.

Is the stator included?
No. The cover is complete in the sense of the Piaggio catalog designation, meaning the casting with its machining: stator, flywheel, gasket, and screws must be ordered separately.

Is it original or an imitation?
It is the original Piaggio Group spare part, code 8329915, not an aftermarket crankcase or a recovered part from a used engine.

Is it suitable for both the ABS and non-ABS versions?
Yes: the spare parts catalog indicates the same code for SRV 850 ABS and NO-ABS. The braking system does not change the engine crankcase.

Do I also need to change the gasket?
Yes, always. The crankcase gasket is single-use: reassembling it after disassembly almost certainly means an oil leak. It is advisable to order it together with the cover.

Can I install it myself?
Replacement requires draining the oil, removing the flywheel with an extractor, cleaning the sealing surfaces, and reassembling by cross-tightening to the torques specified in the manual. This is not an operation to be performed without equipment: consult a workshop.

Data sources: official Piaggio spare parts catalog (B2B) for the code, designation, and vehicle list; official product photographs for material, finish, and visible components; specialized European retailers for price and availability confirmation.