871521, Sprag Clutch, Aprilia, Derbi, Moto Guzzi, Vespa, Gilera, Piaggio
Guaranteed
Genuine
Piaggio
Parts
The Sprag Clutch is number 17 in the part drawing below.
The Sprag Clutch is number 8 in the part drawing below.
- Brand(s):
- Aprilia, Derbi, Moto Guzzi, Vespa, Gilera, Piaggio
- Part number:
- 871521
- Description:
- Sprag Clutch
- Stock Availability:
- If your part is not in stock, it will take 3-5 days to reach MSP
Unsure if it’s the right part?
Price: EUR 153.07 inc. VAT
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Excellent service again. Well done MSP. All parts delivered in a timely manner and well packaged.
PCMK
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Small items ordered but prompt and excellent service.
Paul from Somerset
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Original part at a good price and shipped quickley.
Jan
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Excellent service
Andrew Matheson
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that its easy to use and fast
Russell Ladlow
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Everything is organized and made understandable. It's easy to find what you're looking for and just as easy to order.
Lyudmil Lyudmilov
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The company is amazing and the customer service is great . Will definitely come back .
Cristian Vicol
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sempre efficienti e veloci
Lorenzo Pasini
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From litva to slovenia in 4days..everything like described..top
Hamza
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Great service, my order was processed quickly after purchasing, and freight costs we’re realistic, there are alot of companies clipping the ticket when it comes to freight which I refuse to purchase from , MSP is not one of those companies ...
Keiron Mckee
The Sprag Clutch is a genuine spare part manufactured by Piaggio so you have peace of mind the Sprag Clutch part being sold by Motorcycle Spare Parts is both original and new.
A Sprag Clutch with the manufacturer part number of 871521 is a significant component in several automotive brands such as Aprilia, Derbi, Moto Guzzi, Vespa, Gilera, and Piaggio. It's an OEM (Original Equipment Manufacturer) replacement part, meaning it is designed and produced by the same company that originally made that part for the vehicle. An OEM part offers an assured compatibility and quality match with your vehicle.
The main purpose of a Sprag Clutch, also known as a one-way clutch or freewheel clutch, is to allow rotation in one direction and prevent it in the opposite direction. This clutch engages when driven in one direction, but will freely spin without resistance when spun in the opposite direction. This one-way function is vital for many machines, including these mentioned vehicles, to operate correctly.
In the context of automotive applications, a Sprag Clutch can be used in the starter system of an engine, manual transmissions, and some automatic transmissions. In the starter system, it allows the starter motor to be disengaged safely once the engine has started. In transmissions, it contributes to the smooth, seamless shifting of gears.
Apart from its one-way rotation feature, the Sprag Clutch is also recognizable by its unique design. It incorporates a set of “sprags” - the elements, typically shaped like wedges or cams, which lock rotation in one direction. These sprags tilt from a freewheeling position to a locking position, depending on the direction of rotation.
Remember that for maintaining optimal performance and ensuring the longevity of the vehicle's transmission system, it is important to verify the part's compatibility with your specific model before replacement. The manufacturer part number 871521 should be cross-verified with the specific model number of your vehicle. This assures you acquire an accurate and proper fit, preserving the integrity of the overall mechanic system.
