24/7 Customer service
To make aftermarket auto parts an afterthought.
Add your vehicle
Address
Login
Cart
Item
$0.00

Popular vehicles

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.

  • All filters
  • Sort By
  • Year
  • Make
  • Model
  • Price
  • Brand
  • Warranty
Alternator Rectifier Diode with Heat Sinks for 2005 GMC Sierra 1500 HDAlternator Rectifier Diode with Heat Sinks for 2005 GMC Sierra 1500 HD
A-Premium®Part # APALR085
Alternator Rectifier Diode with Heat Sinks for 2005 GMC Sierra 1500 HD
52 Reviews
$28.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2005 GMC Sierra 1500 HD
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L9KC
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 M8×50 mm battery post (R).
【Note-2】 This item comes with 129 mm negative heat sink.
Show less
Alternator Rectifier Diode for 1963-1971 Chevrolet C10 Pickup
A-Premium®Part # APALR168
Alternator Rectifier Diode for 1963-1971 Chevrolet C10 Pickup
52 Reviews
$32.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet C10 Pickup: 1963 1964 1965 1966 1967 1968 1969 1970 1971
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LG4A
Note
This item is a 12 Volt, 6-35A diode with 123 mm OD.
Show less
Alternator Rectifier Diode for 1963-1971 Chevrolet Bel Air
A-Premium®Part # APALR168
Alternator Rectifier Diode for 1963-1971 Chevrolet Bel Air
52 Reviews
$32.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Bel Air: 1963 1964 1965 1966 1967 1968 1969 1970 1971
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LELW
Note
This item is a 12 Volt, 6-35A diode with 123 mm OD.
Show less
Alternator Rectifier Diode for 1966-1971 Chevrolet Caprice
A-Premium®Part # APALR168
Alternator Rectifier Diode for 1966-1971 Chevrolet Caprice
52 Reviews
$32.99
Low stock: Only 3 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 #1015LHWT
Note
This item is a 12 Volt, 6-35A diode with 123 mm OD.
Show less
Alternator Rectifier Diode for 1970 Buick Estate Wagon
A-Premium®Part # APALR168
Alternator Rectifier Diode for 1970 Buick Estate Wagon
52 Reviews
$32.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1970 Buick Estate Wagon
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LGV1
Note
This item is a 12 Volt, 6-35A diode with 123 mm OD.
Show less
Alternator Rectifier Diode with Negative Heat Sinks for 2007-2010 GMC Yukon XL 1500
A-Premium®Part # APALR156
Alternator Rectifier Diode with Negative Heat Sinks for 2007-2010 GMC Yukon XL 1500
52 Reviews
$28.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC Yukon XL 1500: 2007 2008 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7Z9
Note
【Note-1】 This item is a 12 Volt, 6–50A avalanche diode with 129 mm OD and an M8×32 mm battery post (L).
【Note-2】 This item comes with 129 mm negative heat sink.
【Note-3】 This item fits the model with 120-150 Amp.
Show less
Alternator Rectifier Diode for 2003-2006 Kia Magentis
A-Premium®Part # APALR107
Alternator Rectifier Diode for 2003-2006 Kia Magentis
52 Reviews
$33.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Kia Magentis: 2003 2004 2005 2006
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L80K
Note
This item is a 14 Volt, 3–50A avalanche diode with 107 mm OD and an M8×40 mm battery post, without trio.
Show less
Alternator Rectifier Diode for 2005-2010 Kia Sportage
A-Premium®Part # APALR107
Alternator Rectifier Diode for 2005-2010 Kia Sportage
52 Reviews
$33.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Kia Sportage: 2005 2006 2007 2008 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L8ZX
Note
This item is a 14 Volt, 3–50A avalanche diode with 107 mm OD and an M8×40 mm battery post, without trio.
Show less
Alternator Rectifier Diode for 2006-2009 Hyundai Accent
A-Premium®Part # APALR107
Alternator Rectifier Diode for 2006-2009 Hyundai Accent
52 Reviews
$33.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Accent: 2006 2007 2008 2009
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7Y5
Note
This item is a 14 Volt, 3–50A avalanche diode with 107 mm OD and an M8×40 mm battery post, without trio.
Show less
Alternator Rectifier Diode with Trio for 1982-1984 BMW 733i
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1982-1984 BMW 733i
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 733i: 1982 1983 1984
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101840LD
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Trio for 1988-1990 Audi 80
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1988-1990 Audi 80
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi 80: 1988 1989 1990
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183Z3A
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Trio for 1985-1989 Volkswagen Scirocco
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1985-1989 Volkswagen Scirocco
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Scirocco: 1985 1986 1987 1988 1989
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183ZN9
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Trio for 1986-1988 Audi 5000 Quattro
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1986-1988 Audi 5000 Quattro
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi 5000 Quattro: 1986 1987 1988
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183WUV
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Trio for 1987-1993 Volkswagen Fox
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1987-1993 Volkswagen Fox
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Fox: 1987 1988 1989 1990 1991 1992 1993
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018413W
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Trio for 1986-1988 1990 Saab 9000
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1986-1988 1990 Saab 9000
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Saab 9000: 1986 1987 1988 1990
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101840EK
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Trio for 1990-1992 Volkswagen Corrado
A-Premium®Part # APALR111
Alternator Rectifier Diode with Trio for 1990-1992 Volkswagen Corrado
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Corrado: 1990 1991 1992
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183WTE
Note
This item comes with 12 Volt, 120mm OD, 8-35 Ampere General Diodes, With Trio.
Show less
Alternator Rectifier Diode with Negative Heat Sinks for 2007-2013 GMC Sierra 3500 HD
A-Premium®Part # APALR156
Alternator Rectifier Diode with Negative Heat Sinks for 2007-2013 GMC Sierra 3500 HD
52 Reviews
$28.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC Sierra 3500 HD: 2007 2008 2009 2010 2011 2012 2013
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LASU
Note
【Note-1】 This item is a 12 Volt, 6–50A avalanche diode with 129 mm OD and an M8×32 mm battery post (L).
【Note-2】 This item comes with 129 mm negative heat sink.
【Note-3】 This item fits the model with 120-150 Amp.
Show less
Alternator Rectifier Diode for 1963-1968 Chevrolet Corvette
A-Premium®Part # APALR168
Alternator Rectifier Diode for 1963-1968 Chevrolet Corvette
52 Reviews
$32.99
Low stock: Only 3 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 #1015LHL7
Note
This item is a 12 Volt, 6-35A diode with 123 mm OD.
Show less
Alternator Rectifier Diode for 2005-2009 Hyundai Tucson
A-Premium®Part # APALR107
Alternator Rectifier Diode for 2005-2009 Hyundai Tucson
52 Reviews
$33.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Tucson: 2005 2006 2007 2008 2009
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L8XL
Note
This item is a 14 Volt, 3–50A avalanche diode with 107 mm OD and an M8×40 mm battery post, without trio.
Show less
Alternator Rectifier Diode for 2003-2006 Hyundai Santa Fe
A-Premium®Part # APALR107
Alternator Rectifier Diode for 2003-2006 Hyundai Santa Fe
52 Reviews
$33.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hyundai Santa Fe: 2003 2004 2005 2006
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7EQ
Note
This item is a 14 Volt, 3–50A avalanche diode with 107 mm OD and an M8×40 mm battery post, without trio.
Show less
1...678910...69
Page 8 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

Alternator Voltage Regulator
Alternator Voltage Regulator
Alternator
Alternator
Fuel Pump
Fuel Pump
Water Pump
Water Pump