Valeo 501809 Alternator

OE-Style Charging Replacement

Valeo alternator 501809 is a 100% new charging unit built for OE-quality fitment and dependable electrical output. It is engineered for vehicles that need a 14-volt alternator with an internal regulator and internal fan design.

This Valeo alternator 501809 uses premium rare earth magnets to support strong output in a compact housing. It is tested under thermal, vibration, and electrical stress for long-duration reliability and is built with a serpentine pulley setup, 6-groove pulley, and female 3-terminal connector.

• 14-volt alternator with 115 amp output
• Internal fan and internal regulator design
• Clockwise rotation with serpentine belt drive
• 6-groove pulley included
• Female 3-terminal electrical connector

Fitment Details

Compatible With 2009-2010 Ford Explorer, N/A. Compatible With 2009-2010 Ford Explorer Sport Trac, N/A. Compatible With 2009-2010 Mercury Mountaineer, N/A.

For buyers searching for a Ford Explorer alternator, Ford Explorer Sport Trac alternator, or Mercury Mountaineer alternator, part number 501809 matches the listed applications. This part cross-references Four Seasons 12950 for the same application.

Common Replacement Uses

• Charging system output that has dropped below specification
• Battery warning light caused by alternator failure
• Electrical accessories that dim or operate inconsistently
• Noise or charging instability from a worn alternator

Installation Notes

Verify pulley type, connector style, rotation direction, and amperage rating before installation. Confirm the vehicle uses the listed 14-volt, 115 amp configuration with a serpentine belt drive and 3-terminal female connector. Part number 501809 should be matched to the exact application shown in the fitment data.

Quality Assurance

Valeo has supplied automotive electrical systems since 1923. This alternator is new, not remanufactured, and is tested for up to 1,000 hours under heat, vibration, and electrical load conditions.