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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 for 1992 1995-1996 Ford EscortAlternator Rectifier Diode for 1992 1995-1996 Ford Escort
A-Premium®Part # APALR046
Alternator Rectifier Diode for 1992 1995-1996 Ford Escort
52 Reviews
$33.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Escort: 1992 1995 1996
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015213E
Note
14 Volt, 107.7mm OD, 8-35 Ampere Diodes.
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Alternator Rectifier Diode for 1998 Oldsmobile Silhouette
A-Premium®Part # APALR043
Alternator Rectifier Diode for 1998 Oldsmobile Silhouette
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1998 Oldsmobile Silhouette
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Quantity1
Item LocatedUnited States
ConditionNew
item #101525E8
Note
12 Volt, 118mm OD, Diodes: 6-50A Jumbo Avalanche Button.
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Alternator Rectifier Diode for 2002-2006 Nissan Sentra
A-Premium®Part # APALR014
Alternator Rectifier Diode for 2002-2006 Nissan Sentra
52 Reviews
$41.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Sentra: 2002 2003 2004 2005 2006
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Quantity1
Item LocatedUnited States
ConditionNew
item #101523PE
Note
【Note-1】 12 Volt, 119mm OD, 8-35A Avalanche Diodes, M6×20.3mm Battery Post.;
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
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Alternator Rectifier Diode for 1998-2001 INFINITI I30
A-Premium®Part # APALR014
Alternator Rectifier Diode for 1998-2001 INFINITI I30
52 Reviews
$41.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI I30: 1998 1999 2000 2001
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Quantity1
Item LocatedUnited States
ConditionNew
item #10152447
Note
【Note-1】 12 Volt, 119mm OD, 8-35A Avalanche Diodes, M6×20.3mm Battery Post.;
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 2004-2005 Buick Park Avenue
A-Premium®Part # APALR009
Alternator Rectifier Diode with Aluminum Heat Sinks for 2004-2005 Buick Park Avenue
52 Reviews
$57.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Buick Park Avenue: 2004 2005
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Quantity1
Item LocatedUnited States
ConditionNew
item #101523VC
Note
【Note-1】 12 Volt, 117mm OD, 12-35A Avalanche Diodes, M6×34.5mm Battery Post.;
【Note-2】 This item comes with Aluminum Heat Sinks.
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Alternator Rectifier Diode for 1997-1999 INFINITI Q45
A-Premium®Part # APALR028
Alternator Rectifier Diode for 1997-1999 INFINITI Q45
52 Reviews
$43.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI Q45: 1997 1998 1999
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Quantity1
Item LocatedUnited States
ConditionNew
item #10152609
Note
【Note-1】 24 Volt, 119mm OD, 8-50A Avalanche Diodes, M6×20.3mm Battery Post.
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
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12V Rectifier with Aluminum Heat Sink 6-50A Avalanche Diodes for 2001-2006 Toyota Camry
A-Premium®Part # APALR020
12V Rectifier with Aluminum Heat Sink 6-50A Avalanche Diodes for 2001-2006 Toyota Camry
52 Reviews
$38.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Toyota Camry: 2001 2002 2003 2004 2005 2006
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Quantity1
Item LocatedUnited States
ConditionNew
item #1013GTL9
Note
【Note-1】 12 Volt, 103mm OD, 6-50A Avalanche Diodes, With M6 Battery Post (31°).
【Note-2】 This item comes with Aluminum Heat Sinks.
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Alternator Rectifier for 1992 Mitsubishi Expo
A-Premium®Part # APALR025
Alternator Rectifier for 1992 Mitsubishi Expo
52 Reviews
$36.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1992 Mitsubishi Expo
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
A860T35270, E9PZ10304B, 135252, RM-41, IMR10040
ConditionNew
item #1013GUCV
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Alternator Rectifier for 1992-1998 Hyundai Sonata
A-Premium®Part # APALR025
Alternator Rectifier for 1992-1998 Hyundai Sonata
52 Reviews
$36.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Sonata: 1992 1993 1994 1995 1996 1997 1998
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
A860T35270, E9PZ10304B, 135252, RM-41, IMR10040
ConditionNew
item #1013GRZ2
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Alternator Rectifier for 1987-1990 Mitsubishi Van
A-Premium®Part # APALR025
Alternator Rectifier for 1987-1990 Mitsubishi Van
52 Reviews
$36.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi Van: 1987 1988 1989 1990
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
A860T35270, E9PZ10304B, 135252, RM-41, IMR10040
ConditionNew
item #1013GRAV
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Alternator Rectifier for 1989 Dodge Raider
A-Premium®Part # APALR025
Alternator Rectifier for 1989 Dodge Raider
52 Reviews
$36.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1989 Dodge Raider
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
A860T35270, E9PZ10304B, 135252, RM-41, IMR10040
ConditionNew
item #1013GNXY
Show less
Alternator Rectifier Diode with Trio for 1990-1993 Mazda B2200
A-Premium®Part # APALR036
Alternator Rectifier Diode with Trio for 1990-1993 Mazda B2200
52 Reviews
$39.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mazda B2200: 1990 1991 1992 1993
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10154RVD
Note
Alternator Rectifier -- 12 Volt, 8-35 Ampere Diodes, M6×49.5mm Battery Post.
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Alternator Rectifier Diode with Trio for 1990-1993 Ford Festiva
A-Premium®Part # APALR036
Alternator Rectifier Diode with Trio for 1990-1993 Ford Festiva
52 Reviews
$39.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Festiva: 1990 1991 1992 1993
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10154SVY
Note
Alternator Rectifier -- 12 Volt, 8-35 Ampere Diodes, M6×49.5mm Battery Post.
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Alternator Rectifier Diode with Trio for 1991-1993 Nissan NX
A-Premium®Part # APALR036
Alternator Rectifier Diode with Trio for 1991-1993 Nissan NX
52 Reviews
$39.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan NX: 1991 1992 1993
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10154PCG
Note
Alternator Rectifier -- 12 Volt, 8-35 Ampere Diodes, M6×49.5mm Battery Post.
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Alternator Rectifier Diode for 2008 Volkswagen Jetta City
A-Premium®Part # APALR082
Alternator Rectifier Diode for 2008 Volkswagen Jetta City
52 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2008 Volkswagen Jetta City
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQ06
Note
This item is a 12 Volt, 6-50A avalanche diode with 120 mm OD, an M8×22 mm battery post (L) and an M8×32 mm battery post (R).
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Alternator Rectifier Diode for 1990-1991 GMC C5000 Topkick
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1990-1991 GMC C5000 Topkick
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC C5000 Topkick: 1990 1991
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HL36
Note
This item is a 12 Volt, 3-50A press-fit/avalanche diode with 102 mm OD.
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Alternator Rectifier Diode for 1990-1996 GMC C7000 Topkick
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1990-1996 GMC C7000 Topkick
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC C7000 Topkick: 1990 1991 1992 1993 1994 1995 1996
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HL0G
Note
This item is a 12 Volt, 3-50A press-fit/avalanche diode with 102 mm OD.
Show less
Alternator Rectifier Diode for 1990-1991 GMC B6000
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1990-1991 GMC B6000
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC B6000: 1990 1991
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HL79
Note
This item is a 12 Volt, 3-50A press-fit/avalanche diode with 102 mm OD.
Show less
Alternator Rectifier Diode for 1998-2001 Saturn SW2
A-Premium®Part # APALR058
Alternator Rectifier Diode for 1998-2001 Saturn SW2
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Saturn SW2: 1998 1999 2000 2001
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQ5S
Note
This item is a 12 Volt, 6-50A avalanche diode with 100 mm OD.
Show less
Alternator Rectifier Diode for 2001 2005-2009 Dodge Ram 4000
A-Premium®Part # APALR084
Alternator Rectifier Diode for 2001 2005-2009 Dodge Ram 4000
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Ram 4000: 2001 2005 2006 2007 2008 2009
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQWD
Note
This item is a 12 Volt, 6-60A diode with 120 mm OD, an M8×59.5 mm battery post (L) and an M8×22 mm battery post (R).
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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.

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