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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 Trio for 1993 Land Rover Defender 110Alternator Rectifier Diode With Trio for 1993 Land Rover Defender 110
A-Premium®Part # APALR054
Alternator Rectifier Diode With Trio for 1993 Land Rover Defender 110
52 Reviews
$26.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1993 Land Rover Defender 110
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LA10
Note
This item is a 14 Volt, 8–35A press-fit/ampere diode with 104 mm OD, an M6×41 mm battery post (L), and an M4×17 mm battery post (R).
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Alternator Rectifier Diode for 1996-1998 Land Rover Range Rover
A-Premium®Part # APALR080
Alternator Rectifier Diode for 1996-1998 Land Rover Range Rover
52 Reviews
$26.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Land Rover Range Rover: 1996 1997 1998
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LC1E
Note
This item is a 12 Volt, 8-50A press-fit/ampere diode with 111 mm OD and an M8×50 mm battery post.
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Alternator Rectifier Diode for 2006-2008 Volkswagen GTI
A-Premium®Part # APALR082
Alternator Rectifier Diode for 2006-2008 Volkswagen GTI
52 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen GTI: 2006 2007 2008
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HNHS
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 with Trio for 1995-2002 Kia Sportage
A-Premium®Part # APALR102
Alternator Rectifier Diode with Trio for 1995-2002 Kia Sportage
52 Reviews
$30.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Kia Sportage: 1995 1996 1997 1998 1999 2000 2001 2002
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L9Q2
Note
This item is a 12 Volt, 6-35A diode with an M5×44 mm battery post.
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Alternator Rectifier Diode for 1997-2000 GMC C7500 Topkick
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1997-2000 GMC C7500 Topkick
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC C7500 Topkick: 1997 1998 1999 2000
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HNNK
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 1986 Oldsmobile Delta 88
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1986 Oldsmobile Delta 88
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HRSH
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 1987-1990 Cadillac Allante
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1987-1990 Cadillac Allante
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQ4R
Note
This item is a 12 Volt, 3-50A press-fit/avalanche diode with 102 mm OD.
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Alternator Rectifier Diode with Trio for 1985-1986 Mitsubishi Mirage
A-Premium®Part # APALR096
Alternator Rectifier Diode with Trio for 1985-1986 Mitsubishi Mirage
52 Reviews
$28.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi Mirage: 1985 1986
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LHX7
Note
【Note-1】 This item is a 12 Volt, 6-35A block/ampere diode with trio.
【Note-2】 For Dodge & Plymouth Colt L4 1.6L, this item only fits the vehicle built before 5/1986.
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Alternator Rectifier Diode for 2012-2016 Audi A1
A-Premium®Part # APALR146
Alternator Rectifier Diode for 2012-2016 Audi A1
52 Reviews
$27.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi A1: 2012 2013 2014 2015 2016
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LCDH
Note
This item is a 12 Volt, 6-50A avalanche diode with 120 mm OD, an M8×32 mm battery post (L) and an M8×26 mm battery post (R).
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Alternator Rectifier Diode with Trio for 1988-1989 Ford Festiva
A-Premium®Part # APALR097
Alternator Rectifier Diode with Trio for 1988-1989 Ford Festiva
52 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Festiva: 1988 1989
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L6U2
Note
This item is a 14 Volt, 6-35A block/ampere diode with an M5×49 mm battery post.
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Alternator Rectifier Diode for 1995 Subaru Legacy
A-Premium®Part # APALR125
Alternator Rectifier Diode for 1995 Subaru Legacy
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1995 Subaru Legacy
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LGSU
Note
This item is a 12 Volt, 8-35A avalanche diode with 114 mm OD.
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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
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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
Show less
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
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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 2003-2004 Nissan Pathfinder
A-Premium®Part # APALR105
Alternator Rectifier Diode for 2003-2004 Nissan Pathfinder
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Pathfinder: 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LCLL
Note
【Note-1】 This item is a 12 Volt, 8–35A avalanche diode with 100 mm mounting length and an M8×59.5 mm battery post.
【Note-2】 This item comes without trio/capacitor.
【Note-3】 For 2003-2004 Nissan Pathfinder, this item fits the model built before 12/03.
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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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