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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 1984 Oldsmobile OmegaAlternator Rectifier Diode for 1984 Oldsmobile Omega
A-Premium®Part # APALR175
Alternator Rectifier Diode for 1984 Oldsmobile Omega
52 Reviews
$20.99
Low stock: Only 3 left
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2-year warranty
90 days free return
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LAH1
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 94.9 mm OD.
【Note-2】 For 1984-1986 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1985 Cadillac DeVille
A-Premium®Part # APALR175
Alternator Rectifier Diode for 1985 Cadillac DeVille
52 Reviews
$20.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1985 Cadillac DeVille
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7CU
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 94.9 mm OD.
【Note-2】 For 1984-1986 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1983-1986 Buick Riviera
A-Premium®Part # APALR175
Alternator Rectifier Diode for 1983-1986 Buick Riviera
52 Reviews
$20.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Buick Riviera: 1983 1984 1985 1986
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L6Q7
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 94.9 mm OD.
【Note-2】 For 1984-1986 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1985-1987 Chevrolet El Camino
A-Premium®Part # APALR175
Alternator Rectifier Diode for 1985-1987 Chevrolet El Camino
52 Reviews
$20.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet El Camino: 1985 1986 1987
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LC24
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 94.9 mm OD.
【Note-2】 For 1984-1986 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode with Trio for 1984-1985 Volkswagen Scirocco
A-Premium®Part # APALR134
Alternator Rectifier Diode with Trio for 1984-1985 Volkswagen Scirocco
52 Reviews
$23.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Scirocco: 1984 1985
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HKZX
Note
This item is a 14 Volt, 6-35A diode with 114 mm OD and trio.
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Alternator Rectifier Diode with Trio for 1981-1983 Volkswagen Rabbit Pickup
A-Premium®Part # APALR134
Alternator Rectifier Diode with Trio for 1981-1983 Volkswagen Rabbit Pickup
52 Reviews
$23.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Rabbit Pickup: 1981 1982 1983
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HQVQ
Note
This item is a 14 Volt, 6-35A diode with 114 mm OD and trio.
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Alternator Rectifier Diode for 1983-1986 Chevrolet C10 Suburban
A-Premium®Part # APALR173
Alternator Rectifier Diode for 1983-1986 Chevrolet C10 Suburban
52 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet C10 Suburban: 1983 1984 1985 1986
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LGG7
Note
This item is a 12 Volt, 6–25A diode with 80 mm OD.
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Alternator Rectifier Diode for 1983-1986 Chevrolet Camaro
A-Premium®Part # APALR173
Alternator Rectifier Diode for 1983-1986 Chevrolet Camaro
52 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Camaro: 1983 1984 1985 1986
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LKD3
Note
This item is a 12 Volt, 6–25A diode with 80 mm OD.
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Alternator Rectifier Diode for 1983-1987 Chevrolet El Camino
A-Premium®Part # APALR173
Alternator Rectifier Diode for 1983-1987 Chevrolet El Camino
52 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet El Camino: 1983 1984 1985 1986 1987
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LK3L
Note
This item is a 12 Volt, 6–25A diode with 80 mm OD.
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Alternator Rectifier Diode with Trio for 1987-1989 Mazda B2200
A-Premium®Part # APALR051
Alternator Rectifier Diode with Trio for 1987-1989 Mazda B2200
52 Reviews
$28.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mazda B2200: 1987 1988 1989
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HR7N
Note
This item is a 12 Volt, 6–35A general diode with an M5×49 mm battery post and trio.
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Alternator Rectifier Diode for 1992-1996 Mitsubishi Diamante
A-Premium®Part # APALR035
Alternator Rectifier Diode for 1992-1996 Mitsubishi Diamante
52 Reviews
$34.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi Diamante: 1992 1993 1994 1995 1996
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Quantity1
Item LocatedUnited States
ConditionNew
item #10154RK1
Note
Alternator Rectifier -- 108.8mm OD, 8-35A BLOCK/Ampere Diodes.
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Alternator Rectifier Diode for 1990-1994 Hyundai Sonata
A-Premium®Part # APALR035
Alternator Rectifier Diode for 1990-1994 Hyundai Sonata
52 Reviews
$34.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Sonata: 1990 1991 1992 1993 1994
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Quantity1
Item LocatedUnited States
ConditionNew
item #10154PGT
Note
Alternator Rectifier -- 108.8mm OD, 8-35A BLOCK/Ampere Diodes.
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Alternator Rectifier Diode for 1993 1995-1997 Ford F-350
A-Premium®Part # APALR091
Alternator Rectifier Diode for 1993 1995-1997 Ford F-350
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford F-350: 1993 1995 1996 1997
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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 #1018XHKK
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Alternator Rectifier Diode for 1992-2002 Ford E-350 Econoline Club Wagon
A-Premium®Part # APALR091
Alternator Rectifier Diode for 1992-2002 Ford E-350 Econoline Club Wagon
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-350 Econoline Club Wagon: 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
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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 #1018XEYR
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Alternator Rectifier Diode for 1999-2001 Ford F-350 Super Duty
A-Premium®Part # APALR091
Alternator Rectifier Diode for 1999-2001 Ford F-350 Super Duty
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford F-350 Super Duty: 1999 2000 2001
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 #1018XG0P
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Alternator Rectifier Diode for 1998-2011 Lincoln Town Car
A-Premium®Part # APALR120
Alternator Rectifier Diode for 1998-2011 Lincoln Town Car
52 Reviews
$32.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Lincoln Town Car: 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
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 #1018XGGN
Show less
Alternator Rectifier Diode for 2004-2005 Ford E-150 Club Wagon
A-Premium®Part # APALR120
Alternator Rectifier Diode for 2004-2005 Ford E-150 Club Wagon
52 Reviews
$32.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-150 Club Wagon: 2004 2005
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 #1018XH3H
Show less
Alternator Rectifier Diode for 1999-2001 2003-2007 Ford F-550 Super Duty
A-Premium®Part # APALR117
Alternator Rectifier Diode for 1999-2001 2003-2007 Ford F-550 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-550 Super Duty: 1999 2000 2001 2003 2004 2005 2006 2007
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Quantity1
Item LocatedUnited States
ConditionNew
item #101967N1
Note
12 Volt; 136mm OD; 8-35A General Diodes.
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Alternator Rectifier Diode for 2003 Ford F-53 Motorhome Chassis
A-Premium®Part # APALR117
Alternator Rectifier Diode for 2003 Ford F-53 Motorhome Chassis
52 Reviews
$32.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2003 Ford F-53 Motorhome Chassis
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101968VW
Note
12 Volt; 136mm OD; 8-35A General Diodes.
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Alternator Rectifier Diode with Copper Heat Sinks for 2001-2002 Acura MDX
A-Premium®Part # APALR056
Alternator Rectifier Diode with Copper Heat Sinks for 2001-2002 Acura MDX
52 Reviews
$50.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Acura MDX: 2001 2002
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018SQZL
Note
This item comes With Copper Heat Sinks.
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Page 28 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.

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