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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 1998-2003 Nissan MaximaAlternator Rectifier Diode for 1998-2003 Nissan Maxima
A-Premium®Part # APALR014
Alternator Rectifier Diode for 1998-2003 Nissan Maxima
52 Reviews
$41.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Maxima: 1998 1999 2000 2001 2002 2003
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Quantity1
Item LocatedUnited States
ConditionNew
item #101522S3
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 2001-2004 Cadillac Seville
A-Premium®Part # APALR009
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2004 Cadillac Seville
52 Reviews
$57.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Cadillac Seville: 2001 2002 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #101525YQ
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 with Aluminum Heat Sinks for 2006 Chevrolet Equinox
A-Premium®Part # APALR009
Alternator Rectifier Diode with Aluminum Heat Sinks for 2006 Chevrolet Equinox
52 Reviews
$57.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2006 Chevrolet Equinox
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015234Q
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 2000-2001 Chevrolet Tracker
A-Premium®Part # APALR042
Alternator Rectifier Diode for 2000-2001 Chevrolet Tracker
52 Reviews
$31.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Tracker: 2000 2001
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Quantity1
Item LocatedUnited States
ConditionNew
item #101840XH
Note
14 Volt, 6-35A Block/ Ampere Diodes, M5×44mm Battery Post
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Alternator Rectifier Diode for 1999-2001 Suzuki Vitara
A-Premium®Part # APALR042
Alternator Rectifier Diode for 1999-2001 Suzuki Vitara
52 Reviews
$31.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Suzuki Vitara: 1999 2000 2001
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183ZR0
Note
14 Volt, 6-35A Block/ Ampere Diodes, M5×44mm Battery Post
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Alternator Rectifier Diode with Trio for 1984-1985 Volkswagen Quantum
A-Premium®Part # APALR053
Alternator Rectifier Diode with Trio for 1984-1985 Volkswagen Quantum
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Quantum: 1984 1985
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Quantity1
Item LocatedUnited States
ConditionNew
item #101840E4
Note
【Note-1】 12 Volt, 8-35 Ampere Diodes, M8×52mm Battery Post.
【Note-2】 This item comes with Trio.
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Alternator Rectifier Diode for 1980-1981 Plymouth Arrow Pickup
A-Premium®Part # APALR123
Alternator Rectifier Diode for 1980-1981 Plymouth Arrow Pickup
52 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Plymouth Arrow Pickup: 1980 1981
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018416T
Note
【Note-1】 12 Volt, Mounting Length: 85mm, 6-35A General Diodes.
【Note-2】 This item comes with Copper Heat Sinks & Trio.
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Alternator Rectifier Diode with Aluminum Heat Sink for 1983-1987 Nissan Sentra
A-Premium®Part # APALR136
Alternator Rectifier Diode with Aluminum Heat Sink for 1983-1987 Nissan Sentra
52 Reviews
$21.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Sentra: 1983 1984 1985 1986 1987
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Quantity1
Item LocatedUnited States
ConditionNew
item #10184EET
Note
14 Volt, 111mm OD, 6-35 Ampere Press Fit Diode, With M5×33.5mm Mounting Bolt
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Alternator Rectifier Diode for 1993-1998 Volkswagen Jetta
A-Premium®Part # APALR017
Alternator Rectifier Diode for 1993-1998 Volkswagen Jetta
52 Reviews
$31.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Jetta: 1993 1994 1995 1996 1997 1998
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Quantity1
Item LocatedUnited States
ConditionNew
item #101886HD
Note
14 Volt, Diodes: 6-50A Avalanche, Diameter OD: 112mm, With M8x30mm Battery Post, With Triot.
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Alternator Rectifier Diode for 1992-1993 Volkswagen Transporter
A-Premium®Part # APALR017
Alternator Rectifier Diode for 1992-1993 Volkswagen Transporter
52 Reviews
$31.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Transporter: 1992 1993
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101889Y2
Note
14 Volt, Diodes: 6-50A Avalanche, Diameter OD: 112mm, With M8x30mm Battery Post, With Triot.
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Alternator Rectifier Diode with Trio for 1992-1997 Volkswagen Passat
A-Premium®Part # APALR065
Alternator Rectifier Diode with Trio for 1992-1997 Volkswagen Passat
52 Reviews
$37.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Passat: 1992 1993 1994 1995 1996 1997
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Quantity1
Item LocatedUnited States
ConditionNew
item #10184LLA
Note
12 Volt, 122mm OD, 8-50A Avalanche Diodes, M8×30mm Battery Post, with Trio.
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Alternator Rectifier Diode with Trio for 1992-1995 Volkswagen Corrado
A-Premium®Part # APALR065
Alternator Rectifier Diode with Trio for 1992-1995 Volkswagen Corrado
52 Reviews
$37.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Corrado: 1992 1993 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10184KA1
Note
12 Volt, 122mm OD, 8-50A Avalanche Diodes, M8×30mm Battery Post, with Trio.
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Alternator Rectifier Diode for 2002-2008 Dodge Ram 2500
A-Premium®Part # APALR138
Alternator Rectifier Diode for 2002-2008 Dodge Ram 2500
52 Reviews
$36.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Ram 2500: 2002 2003 2004 2005 2006 2007 2008
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Quantity1
Item LocatedUnited States
ConditionNew
item #10184QR1
Note
14 Volt, 120mm OD, 6-50A Avalanche Diodes, With M8×22mm Battery Post(L), With M8×32mm Battery Post(R).
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Alternator Rectifier Diode for 2002-2008 Dodge Ram 1500
A-Premium®Part # APALR138
Alternator Rectifier Diode for 2002-2008 Dodge Ram 1500
52 Reviews
$36.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Ram 1500: 2002 2003 2004 2005 2006 2007 2008
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Quantity1
Item LocatedUnited States
ConditionNew
item #10184NX9
Note
14 Volt, 120mm OD, 6-50A Avalanche Diodes, With M8×22mm Battery Post(L), With M8×32mm Battery Post(R).
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Alternator Rectifier Diode for 2003-2004 Cadillac Escalade EXT
A-Premium®Part # APALR039
Alternator Rectifier Diode for 2003-2004 Cadillac Escalade EXT
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Cadillac Escalade EXT: 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #101841XE
Note
12V, 116mm OD, 6-50A Avalanche Diodes, M6×53.5mm Battery Post
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Alternator Rectifier Diode for 2002-2004 Chevrolet Avalanche 2500
A-Premium®Part # APALR039
Alternator Rectifier Diode for 2002-2004 Chevrolet Avalanche 2500
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Avalanche 2500: 2002 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183XRE
Note
12V, 116mm OD, 6-50A Avalanche Diodes, M6×53.5mm Battery Post
Show less
Alternator Rectifier Diode with 8-35 Ampere for 1997-2000 Nissan Pathfinder
A-Premium®Part # APALR161
Alternator Rectifier Diode with 8-35 Ampere for 1997-2000 Nissan Pathfinder
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Pathfinder: 1997 1998 1999 2000
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183Z7A
Note
【Note-1】 12 Volt, 114mm OD, 8-35 Ampere Diodes, With M6×20.3mm Battery Post, With M5×31.6mm Mounting Bolt.
【Note-2】 For 1997 Nissan Pathfinder, fit the model with B+ Post on Side of Alternator.
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Alternator Rectifier Diode for 1990-1992 Ford Probe
A-Premium®Part # APALR100
Alternator Rectifier Diode for 1990-1992 Ford Probe
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Probe: 1990 1991 1992
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183X6T
Note
【Note-1】 14 Volt, 8-35A Diodes, M8×54mm Battery Post, With Trio.
【Note-2】 This item fits the model with Automatic Transmission, not Manual Transmission.
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Alternator Rectifier Diode with Trio for 1999-2002 Land Rover Range Rover
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 1999-2002 Land Rover Range Rover
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Land Rover Range Rover: 1999 2000 2001 2002
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183XY7
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 2001-2003 Audi S8
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 2001-2003 Audi S8
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi S8: 2001 2002 2003
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183YPL
Note
【Note-1】 12 Volt, 122mm OD, 12-50A Avalanche Diodes, M8×30mm Battery Post.
【Note-2】 This item comes with Trio.
Show less
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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.

Related Categories

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Alternator Voltage Regulator
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Alternator
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Fuel Pump
Water Pump
Water Pump