Balmar Pulley Kit f/Yanmar 2GM20-F, 3GM30-F, 3GM-F [48-YSP-3GM-B] Marine Plumbing & Ventilation | Thru-Hull Fittings Refresh Rate - 25/30Hz

Refresh Rate - 25/30Hz

Bulk: Replaces 70–80% of the battery’s state-of-charge at the fastest possible rate

Ultra High-Definition scanning sonar (no black box required)

The low profile wall indicator ensures there are no protruding switches for an unobtrusive look on a vessel

Improved with ORB hydraulic ports and threaded cable collars for increased durability

Balmar Pulley Kit f/Yanmar 2GM20-F, 3GM30-F, 3GM-F [48-YSP-3GM-B] Marine Plumbing & Ventilation | Thru-Hull Fittings Refresh Rate - 25/30HzPulley Kit for Yanmar 2GM20 F, 3GM30 F, 3GM F AltMount Serpentine Pulley Conversion Kit for Yanmar Diesel Engines Yanmar Engines Covered: 3GM30 F, 3GM F Kit Includes: Three Ten Groove (J10) Pulleys, Two J10, 40 Circumference Serpentine Belts (one spare) & Mounting Hardware Note: If you specify an AT 200A Alternator, a longer belt length may be required. This product may not be returned to the original point of purchase. Please contact the manufacturer