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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 2000-2004 Audi A6 QuattroAlternator Rectifier Diode with Trio for 2000-2004 Audi A6 Quattro
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 2000-2004 Audi A6 Quattro
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi A6 Quattro: 2000 2001 2002 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #101840RL
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 1997-1999 Audi A8
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 1997-1999 Audi A8
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi A8: 1997 1998 1999
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183YVT
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 Aluminum Heat Sinks for 2003-2004 Chrysler Intrepid
A-Premium®Part # APALR002
Alternator Rectifier Diode with Aluminum Heat Sinks for 2003-2004 Chrysler Intrepid
52 Reviews
$42.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chrysler Intrepid: 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #10183ZDG
Note
【Note-1】 14 Volt, 117mm OD, 12-35A Avalanche Diodes, M8×49mm Battery Post.
【Note-2】 This item comes with Aluminum Heat Sinks.
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Alternator Rectifier Diode for 1995-2002 Lincoln Continental
A-Premium®Part # APALR089
Alternator Rectifier Diode for 1995-2002 Lincoln Continental
52 Reviews
$42.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Lincoln Continental: 1995 1996 1997 1998 1999 2000 2001 2002
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Quantity1
Item LocatedUnited States
Part interchange
139668, F5OZ-10300FA, F5OZ10300FA, FR3003, RF-063, RF063
ConditionNew
item #1018SRCA
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Alternator Rectifier Diode for 2003-2005 Lincoln Aviator
A-Premium®Part # APALR089
Alternator Rectifier Diode for 2003-2005 Lincoln Aviator
52 Reviews
$42.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Lincoln Aviator: 2003 2004 2005
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
139668, F5OZ-10300FA, F5OZ10300FA, FR3003, RF-063, RF063
ConditionNew
item #1018SPCE
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Alternator Rectifier Diode for 1994-2001 BMW 740iL
A-Premium®Part # APALR018
Alternator Rectifier Diode for 1994-2001 BMW 740iL
52 Reviews
$46.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 740iL: 1994 1995 1996 1997 1998 1999 2000 2001
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018SS8Y
Note
This item does not come with Trio.
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Alternator Rectifier Diode for 2001-2006 BMW X5
A-Premium®Part # APALR018
Alternator Rectifier Diode for 2001-2006 BMW X5
52 Reviews
$46.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW X5: 2001 2002 2003 2004 2005 2006
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018SQL7
Note
This item does not come with Trio.
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Alternator Rectifier Diode for 2003 Ford E-550 Super Duty
A-Premium®Part # APALR092
Alternator Rectifier Diode for 2003 Ford E-550 Super Duty
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2003 Ford E-550 Super Duty
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SN69
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Alternator Rectifier Diode for 1992-1996 Ford E-150 Econoline
A-Premium®Part # APALR092
Alternator Rectifier Diode for 1992-1996 Ford E-150 Econoline
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-150 Econoline: 1992 1993 1994 1995 1996
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SP47
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Alternator Rectifier Diode with Trio & Capacitor for 2010-2012 Subaru Legacy
A-Premium®Part # APALR152
Alternator Rectifier Diode with Trio & Capacitor for 2010-2012 Subaru Legacy
52 Reviews
$27.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Subaru Legacy: 2010 2011 2012
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018SR5S
Note
This item comes With Trio & With Capacitor.
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Alternator Rectifier Diode for 2002 2004-2006 Ford E-350 Super Duty
A-Premium®Part # APALR091
Alternator Rectifier Diode for 2002 2004-2006 Ford E-350 Super Duty
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-350 Super Duty: 2002 2004 2005 2006
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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 #1018XK3C
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Alternator Rectifier Diode for 2003-2005 Ford Crown Victoria
A-Premium®Part # APALR120
Alternator Rectifier Diode for 2003-2005 Ford Crown Victoria
52 Reviews
$32.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Crown Victoria: 2003 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 #1018XE3X
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Alternator Rectifier for 1989-1992 Eagle Summit
A-Premium®Part # APALR025
Alternator Rectifier for 1989-1992 Eagle Summit
52 Reviews
$36.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Eagle Summit: 1989 1990 1991 1992
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
A860T35270, E9PZ10304B, 135252, RM-41, IMR10040
ConditionNew
item #1013GPQK
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Alternator Rectifier for 2001-2005 Honda Civic
A-Premium®Part # APALR030
Alternator Rectifier for 2001-2005 Honda Civic
52 Reviews
$33.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Civic: 2001 2002 2003 2004 2005
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
A860X83370, 235297, IMR7579, RM-136
ConditionNew
item #1013GTY7
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Alternator Rectifier Diode for 1983-1985 Dodge Ram 50
A-Premium®Part # APALR131
Alternator Rectifier Diode for 1983-1985 Dodge Ram 50
52 Reviews
$19.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Ram 50: 1983 1984 1985
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L9UG
Note
【Note-1】 This item is a 12 Volt, 6–35A avalanche diode with 92.9 mm OD, an M5×43 mm battery post, and trio.
【Note-2】 This item comes with aluminum heat sinks.
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Alternator Rectifier Diode for 1983-1985 Mitsubishi Mighty Max
A-Premium®Part # APALR131
Alternator Rectifier Diode for 1983-1985 Mitsubishi Mighty Max
52 Reviews
$19.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi Mighty Max: 1983 1984 1985
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L9DP
Note
【Note-1】 This item is a 12 Volt, 6–35A avalanche diode with 92.9 mm OD, an M5×43 mm battery post, and trio.
【Note-2】 This item comes with aluminum heat sinks.
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Alternator Rectifier Diode for 1982-1986 Chevrolet Cavalier
A-Premium®Part # APALR173
Alternator Rectifier Diode for 1982-1986 Chevrolet Cavalier
52 Reviews
$20.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Cavalier: 1982 1983 1984 1985 1986
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LGEG
Note
This item is a 12 Volt, 6–25A diode with 80 mm OD.
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Alternator Rectifier Diode for 1982-1987 Pontiac Firebird
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1982-1987 Pontiac Firebird
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LCU4
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 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 Capacitor for 1995-2000 Chrysler Sebring
A-Premium®Part # APALR057
Alternator Rectifier Diode with Trio Capacitor for 1995-2000 Chrysler Sebring
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chrysler Sebring: 1995 1996 1997 1998 1999 2000
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LAHY
Note
【Note-1】 This item is a 12 Volt, 8–35A press-fit/ampere diode with 100 mm OD and an M6×49.5 mm battery post.
【Note-2】 This item comes with trio/capacitor.
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Alternator Rectifier Diode with Aluminum Heat Sinks for 1992-1995 Chevrolet C2500 Suburban
A-Premium®Part # APALR165
Alternator Rectifier Diode with Aluminum Heat Sinks for 1992-1995 Chevrolet C2500 Suburban
52 Reviews
$23.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet C2500 Suburban: 1992 1993 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HLGZ
Note
【Note-1】 This item is a 12 Volt, 6-35A press-fit/avalanche diode with 100.3 mm OD.
【Note-2】 This item comes with aluminum heat sinks.
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.

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