OEM Quicksilver MerCruiser 3-Inch Grooved Serpentine Idler Pulley – 807757T
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Description
Description
Quicksilver 807757T is a grooved serpentine-belt idler pulley for selected MerCruiser GM-based sterndrive and inboard engines.
Product details
- Manufacturer part number: 807757T.
- Three-inch diameter pulley with six belt grooves.
- Thermal-resin construction with the bearing molded into the pulley.
- Applications include specified 4.3L, 5.0L, 5.7L, 6.2L and 8.2L engines using serpentine belts.
Fitment and selection
Use your engine serial number and accessory-drive diagram to verify 807757T. Confirm the grooved idler position; smooth idlers and other pulley diameters are separate parts. Inspect the support bushing and belt during service.



