Voltage Regulator for Vespa and ​Lambretta

4 connections
12V AC/​DC


AC: bridge the two AC connections, the input and output points on the voltage regulator should be connected to keep the voltage constant despite varying loads!

DC: Output to charge the battery.

Earth: Connection to scooters frame/engine casing, voltage regulator/stator plate and wiring loom.

A voltage regulator prevents the wiring loom and its connected components from any peaks and overloads in power delivery, so keeping all bulbs intact. It is also responsible for supplying any fitted battery with power and to ensure that it remains loaded when the scooters engine is not running. This particular voltage regulator, with four connections, also serves as a voltage rectifier to convert the alternating current (AC) into 12V direct current (DC) while maintaining a tolerable delivery level.

These are a compact voltage regulator for all 12V scooter models that also require a DC power supply to supplement the AC power produced by the stator/flywheel.

Product fitment guide

Model / manufacturerccTypeEngineYear of constructionAdditional
VESPA 100 (UK) / 100 Sport (US)100V9B1T2T AC’78-’9050001 ->, with indicator
VESPA 125 Primavera ET3125VMB1T2T AC’76-’9063201 -> (CH), with indicator
VESPA P125X125VNX1T2T AC’77-’82with indicator
VESPA P150 S150VBX1T2T AC’78-’90with indicator
VESPA P150X / PX150 E150VLX1T2T AC’78-’85with indicator
VESPA P200E / PX200 E200VSX1T2T AC’77-’83
VESPA P80X/PX80 E80V8X1T2T AC’81-’83
VESPA PK 50 S / Elestart50V5X2T2T AC’82-’84(A) (D) (GB), with indicator
VESPA PK 50 S / Elestart50V5X2T2T AC’82-’84
VESPA PK 50 S Lusso / Elestart50V5X2T2T AC’85-’88(A) (D) (GB), with indicator
VESPA PK 50 SS / Elestart50V5S1T2T AC’83-’86
VESPA PK 50 SS Automatica / Elestart50VAS1T2T AC’84
VESPA PK 50 XL / Elestart50V5X3T2T AC’85-’90
VESPA PK 50 XL2 / Elestart50V5X3T2T AC’90-
VESPA PK 80 S / Elestart80V8X5T2T AC’82-’86
VESPA PK 80 S Automatica / Elestart80VA81T2T AC’84
VESPA PK 80 S Lusso / Elestart80V8X5T2T AC’85-’88
VESPA PK100 S / Elestart100V9X1T2T AC’82-’84
VESPA PK125 ETS / Elestart125VMS1T2T AC’84-’85
VESPA PK125 S / Elestart125VMX5T2T AC’82-’84
VESPA PK125 S Automatica / Elestart125VAM1T2T AC’83-’84
VESPA PX 80 E Lusso/ EFL/ Arcobaleno / Elestart80V8X1T2T AC’83-’90
VESPA PX100 E100VIX1T2T AC’83-’84
VESPA PX125 E125VNX1T2T AC’81-’83
VESPA PX125 E Lusso/EFL/Arcobaleno / Elestart125VNX2T2T AC’83-’97
VESPA PX150 E Lusso/EFL/Arcobaleno / Elestart150VLX1T2T AC’83-’97
VESPA PX200 E Lusso/ EFL/ Arcobaleno / Elestart200VSX1T2T AC’83-’97
VESPA T5 / Elestart125VNX5T2T AC’85-’90
VESPA T5 Classic125VNX5T2T AC’92-’95


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voltage-regulator_85154000 Voltage Regulator

$36.50 incl GST

In stock