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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 1993-1997 Ford ProbeAlternator Rectifier Diode with Trio for 1993-1997 Ford Probe
A-Premium®Part # APALR103
Alternator Rectifier Diode with Trio for 1993-1997 Ford Probe
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Probe: 1993 1994 1995 1996 1997
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LGYA
Note
This item is a 12 Volt, 8–35A block/ampere diode with an M5×44 mm battery post.
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Alternator Rectifier Diode for 1986-1992 Nissan Stanza
A-Premium®Part # APALR060
Alternator Rectifier Diode for 1986-1992 Nissan Stanza
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Stanza: 1986 1987 1988 1989 1990 1991 1992
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LASA
Note
【Note-1】 This item is a 12 Volt, 8–50A diode with 100 mm OD, an M6×44.4 mm battery post, and trio.
【Note-2】 This item comes with (M5+M4)×39.8 mm mounting bolt.
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Alternator Rectifier Diode for 1987-1990 Nissan Pulsar NX
A-Premium®Part # APALR060
Alternator Rectifier Diode for 1987-1990 Nissan Pulsar NX
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Pulsar NX: 1987 1988 1989 1990
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L8X5
Note
【Note-1】 This item is a 12 Volt, 8–50A diode with 100 mm OD, an M6×44.4 mm battery post, and trio.
【Note-2】 This item comes with (M5+M4)×39.8 mm mounting bolt.
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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
Check if this fits your vehicle
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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Alternator Rectifier Diode with Aluminium Heat Sinks for 2011-2016 Ford F-350
A-Premium®Part # APALR162
Alternator Rectifier Diode with Aluminium Heat Sinks for 2011-2016 Ford F-350
52 Reviews
$50.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford F-350: 2011 2012 2013 2014 2015 2016
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018SQCG
Note
This item comes With Aluminium Heat Sinks.
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Alternator Rectifier Diode with Copper Heat Sinks for 2002-2004 Honda Odyssey
A-Premium®Part # APALR056
Alternator Rectifier Diode with Copper Heat Sinks for 2002-2004 Honda Odyssey
52 Reviews
$50.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Odyssey: 2002 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018SQU9
Note
This item comes With Copper Heat Sinks.
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Alternator Rectifier Diode for 2003-2005 Ford E-350 Club Wagon
A-Premium®Part # APALR092
Alternator Rectifier Diode for 2003-2005 Ford E-350 Club Wagon
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-350 Club Wagon: 2003 2004 2005
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Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SN3T
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Alternator Rectifier Diode for 1999-2001 Ford F-250 Super Duty
A-Premium®Part # APALR091
Alternator Rectifier Diode for 1999-2001 Ford F-250 Super Duty
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford F-250 Super Duty: 1999 2000 2001
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Quantity1
Item LocatedUnited States
Kit Parts Included2x Rear Lower Forward Control Arm:xxx; 1x Rear driver Lower Rearward Control Arm:xxx
ConditionNew
item #1018XEUH
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Alternator Rectifier Diode for 2004-2007 Ford E-350 Super Duty
A-Premium®Part # APALR120
Alternator Rectifier Diode for 2004-2007 Ford E-350 Super Duty
52 Reviews
$32.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-350 Super Duty: 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Kit Parts Included2x Rear Lower Forward Control Arm:xxx; 1x Rear driver Lower Rearward Control Arm:xxx
ConditionNew
item #1018XDLS
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Alternator Rectifier Diode for 1983-1987 Honda Civic
A-Premium®Part # APALR095
Alternator Rectifier Diode for 1983-1987 Honda Civic
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Civic: 1983 1984 1985 1986 1987
Check if this fits your vehicle
Item LocatedUnited States
Kit Parts Included2x Rear Lower Forward Control Arm:xxx; 1x Rear driver Lower Rearward Control Arm:xxx
ConditionNew
item #1018XLQA
Note
【Note-1】12 Volt; 114mm OD; 6-35 Ampere Diodes.
【Note-2】This item comes With M6×48.5mm Battery Post & M5×35mm Ground Post.
【Note-3】This item comes With M5×41.5mm Mounting Bolt.
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Alternator Rectifier Diode for 2002-2007 Ford F-350 Super Duty
A-Premium®Part # APALR117
Alternator Rectifier Diode for 2002-2007 Ford F-350 Super Duty
52 Reviews
$32.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford F-350 Super Duty: 2002 2003 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101963U5
Note
12 Volt; 136mm OD; 8-35A General Diodes.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 1986 Dodge Mini Ram
A-Premium®Part # APALR129
Alternator Rectifier Diode with Aluminum Heat Sinks for 1986 Dodge Mini Ram
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1986 Dodge Mini Ram
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10184KVK
Note
【Note-1】 12 Volt, 94mm OD, 6-35 Ampere Diodes.
【Note-2】 This item comes with Trio & Aluminum Heat Sinks.
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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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