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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 1995-1998 Ford WindstarAlternator Rectifier Diode for 1995-1998 Ford Windstar
A-Premium®Part # APALR092
Alternator Rectifier Diode for 1995-1998 Ford Windstar
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Windstar: 1995 1996 1997 1998
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Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SQC0
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Alternator Rectifier for 1989-1994 Mitsubishi Montero
A-Premium®Part # APALR025
Alternator Rectifier for 1989-1994 Mitsubishi Montero
52 Reviews
$36.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi Montero: 1989 1990 1991 1992 1993 1994
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Quantity1
Item LocatedUnited States
Part interchange
A860T35270, E9PZ10304B, 135252, RM-41, IMR10040
ConditionNew
item #1013GR6U
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Alternator Rectifier Diode with Trio for 1986 BMW 528e
A-Premium®Part # APALR110
Alternator Rectifier Diode with Trio for 1986 BMW 528e
52 Reviews
$31.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1986 BMW 528e
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183ZTX
Note
12 Volt, 120mm OD, 6-35 Ampere Press-fit, With Trio
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Alternator Rectifier Diode with Trio & Copper Heat Sinks for 1984-1985 Mazda 626
A-Premium®Part # APALR073
Alternator Rectifier Diode with Trio & Copper Heat Sinks for 1984-1985 Mazda 626
52 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mazda 626: 1984 1985
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Quantity1
Item LocatedUnited States
ConditionNew
item #10184PZ3
Note
【Note-1】 14 Volt, 85 mm OD, 6-35 Ampere Diodes, M5×43mm Battery Post.
【Note-2】 This item comes with Trio & Copper Heat Sinks.
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Alternator Rectifier Diode for 1999-2000 Honda Civic
A-Premium®Part # APALR042
Alternator Rectifier Diode for 1999-2000 Honda Civic
52 Reviews
$31.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Civic: 1999 2000
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183XH5
Note
14 Volt, 6-35A Block/ Ampere Diodes, M5×44mm Battery Post
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Alternator Rectifier Diode for 2011-2018 Ram 3500
A-Premium®Part # APALR076
Alternator Rectifier Diode for 2011-2018 Ram 3500
52 Reviews
$43.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ram 3500: 2011 2012 2013 2014 2015 2016 2017 2018
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183YZA
Note
12 Volt, 128mm OD, 12-50 Avalanche Diodes, M8×59.5mm Battery Post.
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Alternator Rectifier Diode with Trio/Capacitor for 1991-1995 Mitsubishi 3000GT
A-Premium®Part # APALR122
Alternator Rectifier Diode with Trio/Capacitor for 1991-1995 Mitsubishi 3000GT
52 Reviews
$32.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi 3000GT: 1991 1992 1993 1994 1995
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Quantity1
Item LocatedUnited States
ConditionNew
item #101840N6
Note
【Note-1】 12 Volt, 6-35A General Diodes, With M6×49.5mm Battery Post.
【Note-2】 It not fits the model with 90 Amp.
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Alternator Rectifier Diode for 1990-1991 Eagle Vista
A-Premium®Part # APALR144
Alternator Rectifier Diode for 1990-1991 Eagle Vista
52 Reviews
$26.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Eagle Vista: 1990 1991
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018419H
Note
【Note-1】 12 Volt, 96.7mm OD, 6-35A Diodes, M5×49mm Battery Post, with Trio.
【Note-2】 For Mitsubishi Mirage, this item fits the model to 4/1988.
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Alternator Rectifier Diode for 2002-2004 Chevrolet Avalanche 1500
A-Premium®Part # APALR039
Alternator Rectifier Diode for 2002-2004 Chevrolet Avalanche 1500
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Avalanche 1500: 2002 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183ZTK
Note
12V, 116mm OD, 6-50A Avalanche Diodes, M6×53.5mm Battery Post
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Alternator Rectifier Diode with Trio for 1998-2001 Mercedes-Benz E430
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 1998-2001 Mercedes-Benz E430
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mercedes-Benz E430: 1998 1999 2000 2001
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183YN0
Note
【Note-1】 12 Volt, 122mm OD, 12-50A Avalanche Diodes, M8×30mm Battery Post.
【Note-2】 This item comes with Trio.
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Alternator Rectifier Diode with Trio for 2001-2002 Mercedes-Benz CL55 AMG
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 2001-2002 Mercedes-Benz CL55 AMG
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mercedes-Benz CL55 AMG: 2001 2002
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183YHZ
Note
【Note-1】 12 Volt, 122mm OD, 12-50A Avalanche Diodes, M8×30mm Battery Post.
【Note-2】 This item comes with Trio.
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Alternator Rectifier Diode for 1990 GMC C7000
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1990 GMC C7000
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 #1015HKX7
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 1991 GMC Jimmy
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1991 GMC Jimmy
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1991 GMC Jimmy
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HLKD
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 1992-1995 GMC K1500 Suburban
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1992-1995 GMC K1500 Suburban
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC K1500 Suburban: 1992 1993 1994 1995
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQ7U
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 1989-1990 GMC C6000
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1989-1990 GMC C6000
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC C6000: 1989 1990
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HRNQ
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 1992-1995 GMC C2500 Suburban
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1992-1995 GMC C2500 Suburban
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC C2500 Suburban: 1992 1993 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HR2C
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 1986-1990 Cadillac Eldorado
A-Premium®Part # APALR070
Alternator Rectifier Diode for 1986-1990 Cadillac Eldorado
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 #1015HR8R
Note
This item is a 12 Volt, 3-50A press-fit/avalanche diode with 102 mm OD.
Show less
Alternator Rectifier Diode with Trio for 1988-1991 Honda Civic
A-Premium®Part # APALR096
Alternator Rectifier Diode with Trio for 1988-1991 Honda Civic
52 Reviews
$28.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Civic: 1988 1989 1990 1991
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LLQL
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 1998-2002 Saturn SC2
A-Premium®Part # APALR058
Alternator Rectifier Diode for 1998-2002 Saturn SC2
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Saturn SC2: 1998 1999 2000 2001 2002
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HN1P
Note
This item is a 12 Volt, 6-50A avalanche diode with 100 mm OD.
Show less
Alternator Rectifier Diode for 1995-1999 Nissan Sentra
A-Premium®Part # APALR135
Alternator Rectifier Diode for 1995-1999 Nissan Sentra
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Sentra: 1995 1996 1997 1998 1999
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
L170G-13201, L170G-53203, 23230-0M000, 23230-0M001, CQ1080555, GD109578B
ConditionNew
item #1015LAXT
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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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