Aftermarket Denso Voltage Regulator IN447

• Bosch 0 986 045 831; Denso 102211-1950, 102211-1951, 102211-1960, 102211-2780, 102211-5260, 102211-5380, 102211-5650, 102211-9070, 102211-9100, 102211-9540, 9662219-195; Marelli 063377442010; Scion 27060-21030, 27060-21030-84, 27060-21031, 27060-21031-84, 27060-21140, 27060-21140-84; Toyota 27060-21010, 27060-21010-84, 27060-21020, 27060-21020-84, 27060-21030, 27060-21030-84, 27060-21031, 27060-21031-84, 27060-21040, 27060-21041, 27060-21042, 27060-21140, 27060-21140-84, 27060-33010, 27060-33040

Vehicle Application

Scion Car
xA L4 1.5L 1497cc 91cid 2004

Scion Van
xB L4 1.5L 1497cc 91cid 2004-2006

Toyota Car
Echo L4 1.5L 1497cc 91cid 2000-2001
Echo L4 1.5L 1497cc 91cid 2000-2003
Echo L4 1.5L 1497cc 91cid 2004-2005
Yaris L4 1.3L 1299cc 79cid 2004-2005

Toyota - Europe Car
Yaris 1300, 16V, 2NZ-FE 1999-2002
Yaris 1500, 16V 2001-2010
Yaris Verso 1300, 16V 2001-2010
Yaris 1400, 1ND-TV 2001-2005
Yaris Verso 1400, 1ND-TV 2002-2006

Features & Benefits

• Precision aftermarket replacement part

• Regulates alternator output voltage

• Helps maintain proper battery charging

• Supports stable charging system performance

• Manufactured to match original specifications

• Designed for dependable long-term operation

• Ideal for alternator rebuilding and repair

• Cross-referenced to OEM and aftermarket part numbers

What Does a Voltage Regulator Do?

The voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system.

A properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.

Common Signs Replacement Is Needed

Replace the voltage regulator if you notice:

• Battery overcharging

• Battery not charging

• Low charging voltage

• High charging voltage

• Battery warning light illuminated

• Intermittent charging problems

• Headlights that brighten or dim with engine speed

• Charging system failure during testing

• Voltage regulator failure discovered during alternator rebuilding

Installation Recommendations

Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage.

Always verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.

While You're Rebuilding

Inspect other common wear components to help maximize charging system reliability:

• Bearings

• Brushes

• Brush Holder

• Slip Rings

• Rectifier

• Diodes

• Rotor

• Clutch Pulley

• Insulators

Why Buy From RC Auto Electric?

RC Auto Electric specializes in alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of OEM and aftermarket electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.

Disclaimer

Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original part, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.