Quicksilver 57-861757Q Serpentine Belt
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Quicksilver Serpentine Belt
The Quicksilver 57-861757Q Serpentine Belt is a genuine factory OEM part manufactured by Mercury Marine to exacting specifications for use in Mercury outboard and MerCruiser sterndrive engine applications. At 2471mm in length, this belt is engineered as a direct replacement for Quicksilver part number 861757 and Sierra 18-15115, making it straightforward to source as a maintenance or repair item. Because it is an authentic Quicksilver part—not an aftermarket alternative—boaters can be confident in proper fitment and durability consistent with original equipment standards.
The belt is lightweight at 0.64 lbs and ships compactly, with typical package dimensions of approximately 13.75 inches in length, 4.50 inches in width, and 0.88 inches in height. It is designed to withstand the demanding operating conditions of marine engines, including exposure to heat, tension, and varying RPM loads associated with serpentine drive systems on both outboard and inboard/sterndrive configurations.
Key Features
- Genuine Mercury Marine / Quicksilver OEM factory part
- 2471mm serpentine belt length
- Direct replacement for Quicksilver 861757 and Sierra 18-15115
- Compatible with Mercury outboard and MerCruiser sterndrive engines
- Lightweight at 0.64 lbs for easy handling and installation
- California Proposition 65 warning: may contain chemicals known to cause cancer and reproductive harm
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