Voltage Regulator for Vespa and ​Lambretta

4 connections


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 6V/12V direct current (DC) while maintaining a tolerable delivery level. On 6V systems we recommend that the lighting coils be connected in series to optimise power delivery to the scooters lighting system!

These are a  compact voltage regulator for all 6V/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
LAMBRETTA Junior 1001002T AC1964-1965
LAMBRETTA Junior 1251252T AC1964-1969
LAMBRETTA Junior 50502T AC1964-1968
LAMBRETTA LI 125 Serie 1125125LI2T AC1958-1959
LAMBRETTA LI 125 Serie 2125125LI2T AC1959-1961
LAMBRETTA LI 125 Serie 3125125LI32T AC1961-1967
LAMBRETTA LI 125 Serie 4125125LI42T AC
LAMBRETTA LI 125 SERVETA125125LI2T AC1961-1965
LAMBRETTA LI 125 Special Serie 3/LiS125125LIS2T AC1965-1969
LAMBRETTA LI 150 Serie 1150150LI2T AC1958-1959
LAMBRETTA LI 150 Serie 2150150LI2T AC1959-1961
LAMBRETTA LI 150 Serie 3150150LI32T AC1962-1967
LAMBRETTA LI 150 SERVETA150150LI2T AC1960-1965
LAMBRETTA LI 150 Special Serie 3/ LiS150150LIS2T AC1963-1966
LAMBRETTA LUI 50 C / CL502T AC’68-’69
LAMBRETTA LUI 75 S / SL752T AC’68-’70
LAMBRETTA SX 150 Serie 3/ X 150 Special150150SX2T AC1966-1969
VESPA 50 / N50V5A1T2T AC’63-’71
VESPA 50 L50V5A1T2T AC’66-70
VESPA 50 R50V5A1T2T AC’69-’83
VESPA 50 Revival50V5R1T2T AC’90-
VESPA 50 S50V5SA1T2T AC’63-’84(N)
VESPA 50 Special50V5A2T2T AC’69-’72
VESPA 50 Special50V5B1T2T AC’72-’75
VESPA 50 Special50V5B3T2T AC’75-’83
VESPA 50 Special Elestart50V5A3T2T AC’69-’72
VESPA 50 Special Elestart50V5B2T2T AC’72-’75
VESPA 50 Special Elestart50V5B4T2T AC’75-’76
VESPA 125 (T1/125) (D)125VNA1-22T AC’57-’59
VESPA 125 (T2/125) (D)125VNB1-62T AC’59-’65-> VNB5M 033212
VESPA 125 (T2/125) (D)125VNB1-62T AC’59-’65
VESPA 125125VM1-2T2T AC’52-’54VM1T
VESPA 125125VMA1T2T AC’65-’67
VESPA 125 GT / 125 Sprint125VNL1-22T AC’61-’73VNL1M
VESPA 125 GT / 125 Sprint125VNL1-22T AC’61-’73
VESPA 125 GTR125VNL2T2T AC’68-’78-> 145900
VESPA 125 Primavera125VMA2T2T AC’67-’83
VESPA 125 Primavera ET3125VMB1T2T AC’76-’90
VESPA 125 Super125VNC1T2T AC’65-’69
VESPA 125 TS125VNL3T2T AC’75-’78-> 18138
VESPA 150 (T4/150) (D)150VGLA-B2T AC’59-’65
VESPA 150150VBA1T2T AC’58-’60
VESPA 150150VBB1-22T AC’60-’67-> VBB2M 260197
VESPA 150150VBB1-22T AC’60-’67VBB2M 260198 ->
VESPA 150 GL150VLA1T2T AC’62-’64VLA1M 036755 ->
VESPA 150 GL150VLA1T2T AC’62-’64VLA1M -> 036754
VESPA 150 Sprint150VLB1T2T AC’65-’74
VESPA 150 Sprint Veloce150VLB1T2T AC’69-’79-> 294259
VESPA 150 Super150VBC1T2T AC’65-’79-> 412373


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voltage-regulator_85154000 Voltage Regulator

$32.50 incl GST

In stock