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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 1997-1999 Mitsubishi DiamanteAlternator Rectifier Diode for 1997-1999 Mitsubishi Diamante
A-Premium®Part # APALR027
Alternator Rectifier Diode for 1997-1999 Mitsubishi Diamante
52 Reviews
$28.99
Low stock: Only 5 left
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2-year warranty
90 days free return
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Quantity1
Item LocatedUnited States
ConditionNew
item #101882R3
Note
【Note-1】 14 Volt; 122mm OD; 8-35A Block/Ampere Diodes; M8x54mm Battery Post.
【Note-2】 This item comes with Trio/Capacitor.
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Alternator Rectifier Diode for 1997 Mitsubishi Montero Sport
A-Premium®Part # APALR027
Alternator Rectifier Diode for 1997 Mitsubishi Montero Sport
52 Reviews
$28.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
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Quantity1
Item LocatedUnited States
ConditionNew
item #10188367
Note
【Note-1】 14 Volt; 122mm OD; 8-35A Block/Ampere Diodes; M8x54mm Battery Post.
【Note-2】 This item comes with Trio/Capacitor.
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Alternator Rectifier Diode for 2003-2006 Nissan 350Z
A-Premium®Part # APALR001
Alternator Rectifier Diode for 2003-2006 Nissan 350Z
52 Reviews
$32.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan 350Z: 2003 2004 2005 2006
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HL28
Note
【Note-1】 This item is a 12 Volt 6-35A avalanche diode with 100 mm OD and an M8×59.5 mm battery post.
【Note-2】 This item comes without trio and capacitor.
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Alternator Rectifier Diode for 1986-1989 Volkswagen Scirocco
A-Premium®Part # APALR170
Alternator Rectifier Diode for 1986-1989 Volkswagen Scirocco
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Scirocco: 1986 1987 1988 1989
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LAET
Note
This item is a 12 Volt, 6–35A diode with 114 mm OD, an M8×52.5 mm battery post, an M5×43.7 mm trio post, and trio.
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Alternator Rectifier Diode with Trio for 1995-1999 BMW 318ti
A-Premium®Part # APALR157
Alternator Rectifier Diode with Trio for 1995-1999 BMW 318ti
52 Reviews
$29.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 318ti: 1995 1996 1997 1998 1999
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HN3L
Note
【Note-1】 This item is a 14 Volt, 6–50A avalanche diode with 107 mm OD and an M8×49 mm battery post.
【Note-2】 This item comes with trio & "W" Terminal.
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Alternator Rectifier Diode with Trio for 1995-1997 Audi A6 Quattro
A-Premium®Part # APALR157
Alternator Rectifier Diode with Trio for 1995-1997 Audi A6 Quattro
52 Reviews
$29.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi A6 Quattro: 1995 1996 1997
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HLP5
Note
【Note-1】 This item is a 14 Volt, 6–50A avalanche diode with 107 mm OD and an M8×49 mm battery post.
【Note-2】 This item comes with trio & "W" Terminal.
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Alternator Rectifier Diode with Trio for 1996-1999 Audi A4 Quattro
A-Premium®Part # APALR157
Alternator Rectifier Diode with Trio for 1996-1999 Audi A4 Quattro
52 Reviews
$29.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi A4 Quattro: 1996 1997 1998 1999
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HN30
Note
【Note-1】 This item is a 14 Volt, 6–50A avalanche diode with 107 mm OD and an M8×49 mm battery post.
【Note-2】 This item comes with trio & "W" Terminal.
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Alternator Rectifier Diode with Trio for 1995-1997 Mercedes-Benz C36 AMG
A-Premium®Part # APALR157
Alternator Rectifier Diode with Trio for 1995-1997 Mercedes-Benz C36 AMG
52 Reviews
$29.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mercedes-Benz C36 AMG: 1995 1996 1997
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HP8G
Note
【Note-1】 This item is a 14 Volt, 6–50A avalanche diode with 107 mm OD and an M8×49 mm battery post.
【Note-2】 This item comes with trio & "W" Terminal.
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Alternator Rectifier Diode for 1998-2000 BMW Z3
A-Premium®Part # APALR079
Alternator Rectifier Diode for 1998-2000 BMW Z3
52 Reviews
$50.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW Z3: 1998 1999 2000
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HRZU
Note
This item is a 12 Volt, 12–50A diode with 122 mm OD, an M8×30 mm battery post, and trio.
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Alternator Rectifier Diode for 1996-1999 BMW 328is
A-Premium®Part # APALR079
Alternator Rectifier Diode for 1996-1999 BMW 328is
52 Reviews
$50.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 328is: 1996 1997 1998 1999
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HNLD
Note
This item is a 12 Volt, 12–50A diode with 122 mm OD, an M8×30 mm battery post, and trio.
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Alternator Rectifier Diode for 1998-1999 BMW 323is
A-Premium®Part # APALR079
Alternator Rectifier Diode for 1998-1999 BMW 323is
52 Reviews
$50.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 323is: 1998 1999
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HL65
Note
This item is a 12 Volt, 12–50A diode with 122 mm OD, an M8×30 mm battery post, and trio.
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Alternator Rectifier Diode with Negative Heat Sinks for 2007 Chevrolet Silverado 1500 HD Classic
A-Premium®Part # APALR155
Alternator Rectifier Diode with Negative Heat Sinks for 2007 Chevrolet Silverado 1500 HD Classic
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2007 Chevrolet Silverado 1500 HD Classic
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HLA8
Note
【Note-1】 This item is a 12 Volt, 6–50A press-fit/avalanche diode with 129 mm OD, an M8×22 mm battery post (L), and an M6×51 mm battery post (R).
【Note-2】 This item comes with 129 mm negative heat sink.
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Alternator Rectifier Diode with Trio for 1991-1993 INFINITI G20
A-Premium®Part # APALR118
Alternator Rectifier Diode with Trio for 1991-1993 INFINITI G20
52 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI G20: 1991 1992 1993
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LA7Q
Note
This item is a 12 Volt, 6–35A diode with 103 mm OD and an M5×16.6 mm battery post.
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Alternator Rectifier Diode for 1977-1979 1986-1989 Ford E-350 Econoline Club Wagon
A-Premium®Part # APALR068
Alternator Rectifier Diode for 1977-1979 1986-1989 Ford E-350 Econoline Club Wagon
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-350 Econoline Club Wagon: 1977 1978 1979 1986 1987 1988 1989
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
GY-1026, D2OZ10304A, 131422, RF-09H, FR1270, D20Z10304A, GY1026A, D13
ConditionNew
item #1018SQHA
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Alternator Rectifier Diode for 1986-1989 Ford Bronco II
A-Premium®Part # APALR068
Alternator Rectifier Diode for 1986-1989 Ford Bronco II
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Bronco II: 1986 1987 1988 1989
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
GY-1026, D2OZ10304A, 131422, RF-09H, FR1270, D20Z10304A, GY1026A, D13
ConditionNew
item #1018SR2S
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12V Rectifier 8-35A Avalanche Diodes for 2004-2008 Mazda RX-8
A-Premium®Part # APALR029
12V Rectifier 8-35A Avalanche Diodes for 2004-2008 Mazda RX-8
52 Reviews
$49.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mazda RX-8: 2004 2005 2006 2007 2008
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1013GR5X
Note
【Note-1】 12 Volt, 122mm OD, 8-35A Avalanche Diodes, M5×44mm Battery Post.
【Note-2】 This item comes Without Trio.
【Note-3】 This item comes Without Capacitor.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 2011-2016 Hyundai Equus
A-Premium®Part # APALR059
Alternator Rectifier Diode with Aluminum Heat Sinks for 2011-2016 Hyundai Equus
52 Reviews
$34.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Equus: 2011 2012 2013 2014 2015 2016
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018SNEX
Note
This item comes With Aluminum Heat Sinks.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2016 Hyundai Genesis
A-Premium®Part # APALR059
Alternator Rectifier Diode with Aluminum Heat Sinks for 2009-2016 Hyundai Genesis
52 Reviews
$34.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Genesis: 2009 2010 2011 2012 2013 2014 2015 2016
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018SPE0
Note
This item comes With Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode for 1975-1979 1986-1989 Ford F-350
A-Premium®Part # APALR068
Alternator Rectifier Diode for 1975-1979 1986-1989 Ford F-350
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford F-350: 1975 1976 1977 1978 1979 1986 1987 1988 1989
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
GY-1026, D2OZ10304A, 131422, RF-09H, FR1270, D20Z10304A, GY1026A, D13
ConditionNew
item #1018SRVR
Show less
Alternator Rectifier Diode for 2006-2011 Honda Civic
A-Premium®Part # APALR087
Alternator Rectifier Diode for 2006-2011 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: 2006 2007 2008 2009 2010 2011
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183YW5
Note
14 Volt, 8-35A Block/Avalanche Diodes, With M5×44mm Battery Post
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Page 20 of 69

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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