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Alternator Rectifier Bridge

1376 items

An alternator rectifier bridge uses diodes to convert alternating current into direct current for the vehicle's electrical system. Choose the bridge for the alternator design, comparing assembly layout, connections and mounting. It is a service component within the alternator rather than a complete alternator replacement.

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Alternator Rectifier Diode with Aluminum Heat Sinks for 2008-2009 Buick AllureAlternator Rectifier Diode with Aluminum Heat Sinks for 2008-2009 Buick Allure
A-Premium®Part # APALR130
Alternator Rectifier Diode with Aluminum Heat Sinks for 2008-2009 Buick Allure
52 Reviews
$39.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Buick Allure: 2008 2009
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HNN7
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×49 mm battery post.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2004-2016 Toyota Camry
A-Premium®Part # APALR011
Alternator Rectifier Diode with Aluminum Heat Sinks for 2004-2016 Toyota Camry
52 Reviews
$34.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Camry: 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015255D
Note
【Note-1】 12 Volt, 117mm OD, 6-50A Avalanche Diodes, M6×33mm Battery Post.;
【Note-2】 This item comes With Aluminum Heat sinks.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 2004 Acura TL
A-Premium®Part # APALR126
Alternator Rectifier Diode with Aluminum Heat Sinks for 2004 Acura TL
52 Reviews
$37.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2004 Acura TL
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7H5
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×40 mm battery post.
Show less
Alternator Rectifier Diode for 1987-1995 Toyota Tercel
A-Premium®Part # APALR003
Alternator Rectifier Diode for 1987-1995 Toyota Tercel
52 Reviews
$55.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Tercel: 1987 1988 1989 1990 1991 1992 1993 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101522VA
Note
12 Volt, 100mm OD, 8-50A Avalanche Diodes.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 2008-2010 Chevrolet Malibu
A-Premium®Part # APALR130
Alternator Rectifier Diode with Aluminum Heat Sinks for 2008-2010 Chevrolet Malibu
52 Reviews
$39.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Malibu: 2008 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HS23
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×49 mm battery post.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2013 Toyota Matrix
A-Premium®Part # APALR011
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2013 Toyota Matrix
52 Reviews
$34.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Matrix: 2009 2010 2011 2012 2013
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101521S4
Note
【Note-1】 12 Volt, 117mm OD, 6-50A Avalanche Diodes, M6×33mm Battery Post.;
【Note-2】 This item comes With Aluminum Heat sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2007 Dodge Grand Caravan
A-Premium®Part # APALR126
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2007 Dodge Grand Caravan
52 Reviews
$37.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Grand Caravan: 2001 2002 2003 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L8PY
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×40 mm battery post.
Show less
Alternator Rectifier Diode for 1993-1995 Honda Civic del Sol
A-Premium®Part # APALR003
Alternator Rectifier Diode for 1993-1995 Honda Civic del Sol
52 Reviews
$55.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Civic del Sol: 1993 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015223L
Note
12 Volt, 100mm OD, 8-50A Avalanche Diodes.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009 Chevrolet Equinox
A-Premium®Part # APALR130
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009 Chevrolet Equinox
52 Reviews
$39.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2009 Chevrolet Equinox
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HPA0
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×49 mm battery post.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2004-2016 Toyota Tundra
A-Premium®Part # APALR011
Alternator Rectifier Diode with Aluminum Heat Sinks for 2004-2016 Toyota Tundra
52 Reviews
$34.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Tundra: 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10152364
Note
【Note-1】 12 Volt, 117mm OD, 6-50A Avalanche Diodes, M6×33mm Battery Post.;
【Note-2】 This item comes With Aluminum Heat sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2007 Honda Accord
A-Premium®Part # APALR126
Alternator Rectifier Diode with Aluminum Heat Sinks for 2007 Honda Accord
52 Reviews
$37.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2007 Honda Accord
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LD1K
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×40 mm battery post.
Show less
Alternator Rectifier Diode for 1990-1992 Toyota Celica
A-Premium®Part # APALR003
Alternator Rectifier Diode for 1990-1992 Toyota Celica
52 Reviews
$55.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Celica: 1990 1991 1992
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015251N
Note
12 Volt, 100mm OD, 8-50A Avalanche Diodes.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2016-2017 Kia K900
A-Premium®Part # APALR130
Alternator Rectifier Diode with Aluminum Heat Sinks for 2016-2017 Kia K900
52 Reviews
$39.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Kia K900: 2016 2017
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQAE
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×49 mm battery post.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2010 Pontiac Vibe
A-Premium®Part # APALR011
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2010 Pontiac Vibe
52 Reviews
$34.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Pontiac Vibe: 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10152157
Note
【Note-1】 12 Volt, 117mm OD, 6-50A Avalanche Diodes, M6×33mm Battery Post.;
【Note-2】 This item comes With Aluminum Heat sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2007 Chrysler Town & Country
A-Premium®Part # APALR126
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2007 Chrysler Town & Country
52 Reviews
$37.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chrysler Town & Country: 2001 2002 2003 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L940
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×40 mm battery post.
Show less
Alternator Rectifier Diode for 1985-1992 Toyota Pickup
A-Premium®Part # APALR003
Alternator Rectifier Diode for 1985-1992 Toyota Pickup
52 Reviews
$55.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Pickup: 1985 1986 1987 1988 1989 1990 1991 1992
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101523S6
Note
12 Volt, 100mm OD, 8-50A Avalanche Diodes.
Show less
Alternator Rectifier Diode for 1997 1999-2000 Dodge Ram 3500 Van
A-Premium®Part # APALR128
Alternator Rectifier Diode for 1997 1999-2000 Dodge Ram 3500 Van
52 Reviews
$28.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Ram 3500 Van: 1997 1999 2000
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1016VS0E
Note
【Note-1】 12 Volt, 103mm OD, 8-50A Ampere Diodes, M6×44mm Battery Post.
【Note-2】 This item comes with Ground Screw Hole.
【Note-3】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2013 Toyota Corolla
A-Premium®Part # APALR011
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2013 Toyota Corolla
52 Reviews
$34.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Corolla: 2009 2010 2011 2012 2013
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101522NQ
Note
【Note-1】 12 Volt, 117mm OD, 6-50A Avalanche Diodes, M6×33mm Battery Post.;
【Note-2】 This item comes With Aluminum Heat sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2007 Dodge Caravan
A-Premium®Part # APALR126
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2007 Dodge Caravan
52 Reviews
$37.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Caravan: 2001 2002 2003 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L9NP
Note
This item is a 12 Volt, 12–50A press-fit/avalanche diode with 117 mm OD and an M8×40 mm battery post.
Show less
Alternator Rectifier Diode for 1995-1999 Toyota Tacoma
A-Premium®Part # APALR003
Alternator Rectifier Diode for 1995-1999 Toyota Tacoma
52 Reviews
$55.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Tacoma: 1995 1996 1997 1998 1999
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101521K2
Note
12 Volt, 100mm OD, 8-50A Avalanche Diodes.
Show less
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Alternator Rectifier Bridges

An alternator rectifier bridge uses diodes to convert the alternator's alternating current into direct current for the vehicle's electrical system. It is one part of the alternator, rather than a complete replacement alternator.

A-Premium offers rectifier assemblies for selected alternators. Their size, connections and internal diode configuration can differ, so select a bridge for the specific alternator being repaired.

Choosing An Alternator Diode Bridge

Identify the alternator and compare the replacement's mounting shape, outside diameter and electrical connections. The vehicle application helps narrow the choices, but the rectifier must also match the alternator installed in the vehicle.

A charging warning or a weak battery does not identify a failed rectifier by itself. The battery, drive belt, wiring and voltage regulator are also part of the charging-system diagnosis.

Frequently Asked Questions (FAQ)

What is the difference between a rectifier and a voltage regulator?

The rectifier converts alternating current to direct current; the regulator controls alternator voltage for the operating conditions. They perform different jobs even when both are mounted on the alternator.

Can a faulty alternator diode drain the battery when parked?

A faulty diode can contribute to battery discharge while the vehicle is off. Other electrical loads and battery problems can also cause a drain, so the charging system needs a proper diagnosis.

Why does the battery-post size matter?

The post connects the charging output to the vehicle's electrical cable. Its diameter and length must suit the connection and available space; an M6 post and an M8 post are different mounting specifications.

What do the heat sinks on a rectifier do?

A heat sink helps transfer heat away from the electronic components. Some A-Premium bridge listings identify aluminum heat sinks, but the design and supplied parts vary by product.

Can I disconnect the battery while the engine runs to test charging?

Keep the battery connected while the alternator is operating. HELLA warns that disconnecting the battery or connections with the engine running can create voltage spikes and damage components; use the specified diagnostic procedure instead.

Related Categories

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Alternator Voltage Regulator
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Alternator
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