Combination Electronic Voltage Regulator & Rectifier. 

Replaces BOSCH 3-phase diode board / rectifier and voltage regulator. Advanced metal ceramic heat transfer technology replaces the BMW R Airhead & Moto Guzzi diode board system. Mounts remotely outside the alternator cover for high reliability and performance.

NOTE: Not wired for warning indicator lamp; requires voltage monitor (not included ). Voltage setting 14.2 V / 450 watts .


Vehicle Manufacturer: BMW, Moto Guzzi
Application: BMW R 1970-1995 & Moto Guzzi w/ BOSCH Alternators 1970-1992
Make/Model: BMW, Moto Guzzi: All Model 247's & Moto Guzzi to 1992
Model Years: 1970 to 1995
Manufacturer #: Not Available from Dealer
Type: Retrofit BOSCH Charging System 3-phase / diode board & voltage regulator


NOTE: Not Compatible with lithium iron batteries as supplied by Shorai or dry cell batterys as supplied by Odyssey. THE USE OF ODYSSEY BATTERY ( DRY CELL DESIGN) AND LITHIUM IRON BATTERY IS NOT RECOMMENDED NOR SUPPORTED FOR WARRANTY


The voltage regulation and AC / DC rectification of the BOSCH 3-phase charging system is updated to modern technology. 

Sophisticated electronics housed in finned cast-aluminum housing. 

Features highly advanced metal ceramic heat transfer construction providing ample cooling

Mounts remotely for increased cooling and reliability. 

Designed & manufactured to modern OEM Specifications by OEM manufacturer. 

Aluminum casting finned on both side for increased cooling capacity and improved reliability! 

Purchase and install it now to make the last improvement to overheated BOSCH diode plate/ rectifier.

EnDuraLast Voltage Regulator / Rectifier

SKU: EDL-VoltRect




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    (604) 513-1376

    19862 96 Ave #3, Langley, BC V1M 3C1, Canada

    (604) 513-1378

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