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Voltage Regulator - Vespa GTS 250/300 — source gallery view 1 [P067-52301132431640]

Voltage Regulator - Vespa GTS 250/300

$99.00
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Voltage Regulator - Vespa GTS 250/300 — source gallery view 1 [P067-52301132431640]
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  • Voltage Regulator - Vespa GTS 250/300 — source gallery view 1 [P067-52301132431640]
  • Voltage Regulator - Vespa GTS 250/300 — source gallery view 2 [P067-52301132398872]
Voltage Regulator - Vespa GTS 250/300

Voltage Regulator - Vespa GTS 250/300

$99.00
Part number 641709-AFT

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An aftermarket voltage regulator rectifier from for Vespa GTS 250/300, Piaggio BV/MP3/Beverly, and Aprilia Atlantic/SportCity models running Quasar 250–300cc engines. Converts AC output from the stator into stable 14.5V DC, protecting the battery and electrical system from overcharging spikes and undercharging dropouts. Features a die-cast aluminum finned heat sink for thermal management and includes OEM-matched connectors for a plug-in installation. Replaces OEM part numbers 641709, 639110, and 58115R.

  • Regulated 14.5V DC output — matches OEM voltage tolerance
  • Die-cast aluminum finned heat sink for heat dissipation
  • OEM-matched connector harness — plug-in installation, no splicing
  • Protects battery from overcharging and undercharging
  • Replaces OEM 641709, 639110, 58115R
  • SKU: 641709-AFT

Features

  • Regulated 14.5V DC output — matches OEM voltage tolerance
  • Die-cast aluminum finned heat sink for heat dissipation
  • OEM-matched connector harness — plug-in installation, no splicing
  • Protects battery from overcharging and undercharging
  • Replaces OEM 641709, 639110, 58115R

Specifications

  • Output Voltage: 14.5V DC (regulated)
  • Type: Shunt-type voltage regulator rectifier
  • Housing: Die-cast aluminum heat sink with sealed epoxy potting
  • Replaces OEM: 641709, 639110, 58115R
  • SKU: 641709-AFT

Model Fitment

Make Model Engine
Vespa GTS 250 / GTS 300 / GTS Super / GTV Quasar 250–300cc
Piaggio BV 250 / BV 300 Quasar 250–300cc
Piaggio MP3 250 / MP3 300 Quasar 250–300cc
Piaggio Beverly 300 / Beverly 350 Fuel-injected maxi-scooter
Aprilia Atlantic 250 Quasar 250cc
Aprilia SportCity 250 / SportCity 300 Quasar 250–300cc

 

Installation note: Ensure clean metal-to-metal contact at the chassis mounting point — the regulator body requires a solid chassis ground to dissipate excess voltage. Before replacing, verify the stator output and wiring harness are in good condition, as a faulty stator can damage a new regulator.

California Prop 65 Warning: www.p65warnings.ca.gov

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