Standard Ignition VR-850 Voltage Regulator

Charging System Voltage Regulator Overview

Standard Ignition VR-850 is a 12-volt charging system voltage regulator for alternator-mounted applications. It is built with a female oval connector, male blade terminals, and a compact regulator housing sized for direct replacement service on select Volkswagen and Audi charging systems.

Compatible With Bosch alternator applications on select Volkswagen Beetle, Jetta, Passat, GTI, Eos, CC, Golf City, and Audi A3 models, this regulator supports stable alternator output in vehicles that rely on precise voltage control.

Key Features

• Brand: Standard Ignition
• Part number: VR-850
• Charging system voltage regulator for 12-volt systems
• Alternator mounting location
• Female oval connector with 1 connector interface
• 2 male blade terminals
• Regulator only; no mounting bracket included
• No instructions included

Detailed Product Description

The Standard Ignition VR-850 is a replacement voltage regulator used to control alternator charging output and maintain proper system voltage. It measures 109.474 x 71.374 x 38.1 mm (4.31 x 2.81 x 1.5 in.) and is configured for alternator installation with a female oval connector and blade-style terminals. This part cross-references 06F903803 and VR1148 for the same application. Use VR-850 when servicing Bosch alternator-equipped Volkswagen and Audi charging systems that require this regulator style.

What This Part Helps Address

• Battery warning light caused by unstable charging voltage
• Overcharging or undercharging conditions
• Dim lights or electrical accessories affected by low system voltage
• Charging system faults traced to the alternator regulator
• Intermittent voltage output from a worn regulator

Installation Notes and Tips

Verify alternator type, connector shape, terminal style, and voltage before installation. This regulator mounts on the alternator and does not include mounting brackets, hardware, or instructions. Confirm vehicle application by year, make, model, and Bosch alternator configuration before ordering. Fits 2006-2014 Volkswagen Jetta, Bosch Alternator; Fits 2009 Volkswagen CC, Bosch Alternator; Fits 2007-2009 Volkswagen Eos, Bosch Alternator; Fits 2006-2009 Volkswagen Passat, Bosch Alternator; Fits 2006-2008 Audi A3, Bosch Alternator; Fits 2006-2008 Audi A3 Quattro, Bosch Alternator; Fits 2006-2007 Volkswagen GTI, Bosch Alternator; Fits 2000-2006 Volkswagen Beetle, Bosch Alternator.

Quality Assurance

Standard Ignition supplies replacement electrical components for charging system service. VR-850 is specified for direct-fit use on listed applications when the alternator and connector configuration match the vehicle requirements.