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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 1966-1976 BMW 2002Alternator Rectifier Diode with Trio for 1966-1976 BMW 2002
A-Premium®Part # APALR033
Alternator Rectifier Diode with Trio for 1966-1976 BMW 2002
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 2002: 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976
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Quantity1
Item LocatedUnited States
ConditionNew
item #10152580
Note
【Note-1】 14 Volt, 114mm OD, 6-35A Diodes, M6×52.5mm Battery Post.
【Note-2】 This item comes with Trio.
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Alternator Rectifier Diode for 2003-2006 INFINITI G35
A-Premium®Part # APALR001
Alternator Rectifier Diode for 2003-2006 INFINITI G35
52 Reviews
$32.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI G35: 2003 2004 2005 2006
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HL9Z
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 1986-1992 Volkswagen Golf
A-Premium®Part # APALR170
Alternator Rectifier Diode for 1986-1992 Volkswagen Golf
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Golf: 1986 1987 1988 1989 1990 1991 1992
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L95T
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 for 1990-1993 Volkswagen Passat
A-Premium®Part # APALR170
Alternator Rectifier Diode for 1990-1993 Volkswagen Passat
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Passat: 1990 1991 1992 1993
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L98G
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 for 1996-2004 Honda Odyssey
A-Premium®Part # APALR143
Alternator Rectifier Diode for 1996-2004 Honda Odyssey
52 Reviews
$27.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Odyssey: 1996 1997 1998 1999 2000 2001 2002 2003 2004
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L70R
Note
This item is a 12 Volt, 8-50A press-fit diode with 113 mm OD and an M6 battery post (36°).
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Alternator Rectifier Diode for 2005 BMW 330i
A-Premium®Part # APALR164
Alternator Rectifier Diode for 2005 BMW 330i
52 Reviews
$40.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2005 BMW 330i
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L6UQ
Note
This item is a 12 Volt, 6-50A press-fit/avalanche diode with 114 mm OD and an M8×32 mm battery post.
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Alternator Rectifier Diode with Negative Heat Sinks for 2005-2006 GMC Yukon XL 2500
A-Premium®Part # APALR155
Alternator Rectifier Diode with Negative Heat Sinks for 2005-2006 GMC Yukon XL 2500
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC Yukon XL 2500: 2005 2006
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HP6N
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 Nissan NX
A-Premium®Part # APALR118
Alternator Rectifier Diode with Trio for 1991-1993 Nissan NX
52 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan NX: 1991 1992 1993
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LATD
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 1994-1995 BMW 530i
A-Premium®Part # APALR079
Alternator Rectifier Diode for 1994-1995 BMW 530i
52 Reviews
$50.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 530i: 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HP69
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 1995-2002 Volkswagen Cabrio
A-Premium®Part # APALR019
Alternator Rectifier Diode for 1995-2002 Volkswagen Cabrio
52 Reviews
$35.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Cabrio: 1995 1996 1997 1998 1999 2000 2001 2002
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018409U
Note
【Note-1】 12 Volt, 112mm OD, 8-50A Avalanche Diodes, M8×30mm Battery Post.
【Note-2】 This item comes with Trio.
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Alternator Rectifier Diode for 1975-1979 1986-1989 Ford E-350 Econoline
A-Premium®Part # APALR068
Alternator Rectifier Diode for 1975-1979 1986-1989 Ford E-350 Econoline
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: 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 #1018SR6W
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Alternator Rectifier Diode for 1975-1979 1986-1989 Ford E-250 Econoline
A-Premium®Part # APALR068
Alternator Rectifier Diode for 1975-1979 1986-1989 Ford E-250 Econoline
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-250 Econoline: 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 #1018SR9U
Show less
Alternator Rectifier Diode for 1996-1998 Mercury Villager
A-Premium®Part # APALR027
Alternator Rectifier Diode for 1996-1998 Mercury Villager
52 Reviews
$28.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101880R4
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 2007-2009 Kia Rondo
A-Premium®Part # APALR005
Alternator Rectifier Diode for 2007-2009 Kia Rondo
52 Reviews
$28.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101882RW
Note
【Note-1】 12 Volt; 113mm OD; 8-50A Cell/Ampere Diodes; M8x47mm Battery Post.
【Note-2】 This item comes with Ground Screw Hole.
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Alternator Rectifier Diode for 1993-1998 Volkswagen Jetta
A-Premium®Part # APALR019
Alternator Rectifier Diode for 1993-1998 Volkswagen Jetta
52 Reviews
$35.99
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 #10183ZAR
Note
【Note-1】 12 Volt, 112mm OD, 8-50A Avalanche Diodes, M8×30mm Battery Post.
【Note-2】 This item comes with Trio.
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Alternator Rectifier Diode for 2004-2011 Ford Crown Victoria
A-Premium®Part # APALR177
Alternator Rectifier Diode for 2004-2011 Ford Crown Victoria
52 Reviews
$37.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Crown Victoria: 2004 2005 2006 2007 2008 2009 2010 2011
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Quantity1
Item LocatedUnited States
ConditionNew
item #1018418V
Note
14 Volt, 135mm OD, 16-50A General Diodes
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Alternator Rectifier Diode with Aluminum Heat Sink for 1971-1974 Dodge B300 Van
A-Premium®Part # APALR150
Alternator Rectifier Diode with Aluminum Heat Sink for 1971-1974 Dodge B300 Van
52 Reviews
$14.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge B300 Van: 1971 1972 1973 1974
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10184SKU
Note
【Note-1】 12 Volt, 3-35A Diodes.
【Note-2】 This item comes with Aluminum Heat Sink.
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Alternator Rectifier Diode with Aluminum Heat Sink for 1970-1973 Chrysler Imperial
A-Premium®Part # APALR150
Alternator Rectifier Diode with Aluminum Heat Sink for 1970-1973 Chrysler Imperial
52 Reviews
$14.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10184SWX
Note
【Note-1】 12 Volt, 3-35A Diodes.
【Note-2】 This item comes with Aluminum Heat Sink.
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Alternator Rectifier Diode for 2006-2008 Kia Magentis
A-Premium®Part # APALR005
Alternator Rectifier Diode for 2006-2008 Kia Magentis
52 Reviews
$28.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101882TQ
Note
【Note-1】 12 Volt; 113mm OD; 8-50A Cell/Ampere Diodes; M8x47mm Battery Post.
【Note-2】 This item comes with Ground Screw Hole.
Show less
Alternator Rectifier Diode for 1993-1997 Jaguar Vanden Plas
A-Premium®Part # APALR005
Alternator Rectifier Diode for 1993-1997 Jaguar Vanden Plas
52 Reviews
$28.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10188129
Note
【Note-1】 12 Volt; 113mm OD; 8-50A Cell/Ampere Diodes; M8x47mm Battery Post.
【Note-2】 This item comes with Ground Screw Hole.
Show less
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Page 13 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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Alternator Voltage Regulator
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Alternator
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