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 for 2001-2004 Chevrolet AstroAlternator Rectifier Diode for 2001-2004 Chevrolet Astro
A-Premium®Part # APALR039
Alternator Rectifier Diode for 2001-2004 Chevrolet Astro
52 Reviews
$30.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Astro: 2001 2002 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183XLA
Note
12V, 116mm OD, 6-50A Avalanche Diodes, M6×53.5mm Battery Post
Show less
Alternator Rectifier Diode for 1990-1992 Mazda MX-6
A-Premium®Part # APALR100
Alternator Rectifier Diode for 1990-1992 Mazda MX-6
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mazda MX-6: 1990 1991 1992
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183XN7
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.
Show less
Alternator Rectifier Diode with Trio for 1994-1999 Mercedes-Benz S420
A-Premium®Part # APALR109
Alternator Rectifier Diode with Trio for 1994-1999 Mercedes-Benz S420
52 Reviews
$57.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mercedes-Benz S420: 1994 1995 1996 1997 1998 1999
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101841XZ
Note
【Note-1】 12 Volt, 122mm OD, 12-50A Avalanche Diodes, M8×30mm Battery Post.
【Note-2】 This item comes with Trio.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2002-2004 Dodge Intrepid
A-Premium®Part # APALR002
Alternator Rectifier Diode with Aluminum Heat Sinks for 2002-2004 Dodge Intrepid
52 Reviews
$42.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Dodge Intrepid: 2002 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183ZZK
Note
【Note-1】 14 Volt, 117mm OD, 12-35A Avalanche Diodes, M8×49mm Battery Post.
【Note-2】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2002-2004 Chrysler Concorde
A-Premium®Part # APALR002
Alternator Rectifier Diode with Aluminum Heat Sinks for 2002-2004 Chrysler Concorde
52 Reviews
$42.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chrysler Concorde: 2002 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101840RU
Note
【Note-1】 14 Volt, 117mm OD, 12-35A Avalanche Diodes, M8×49mm Battery Post.
【Note-2】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 1986 Dodge Ram 50
A-Premium®Part # APALR129
Alternator Rectifier Diode with Aluminum Heat Sinks for 1986 Dodge Ram 50
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1986 Dodge Ram 50
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10184NPE
Note
【Note-1】 12 Volt, 94mm OD, 6-35 Ampere Diodes.
【Note-2】 This item comes with Trio & Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode for 2007-2015 Mazda CX-9
A-Premium®Part # APALR052
Alternator Rectifier Diode for 2007-2015 Mazda CX-9
52 Reviews
$43.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mazda CX-9: 2007 2008 2009 2010 2011 2012 2013 2014 2015
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183Y8P
Note
12 Volt, 128mm OD, 12-50A General Diodes
Show less
Alternator Rectifier Diode with Trio for 1986-1993 Volkswagen Cabriolet
A-Premium®Part # APALR178
Alternator Rectifier Diode with Trio for 1986-1993 Volkswagen Cabriolet
52 Reviews
$26.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Cabriolet: 1986 1987 1988 1989 1990 1991 1992 1993
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018425E
Note
14 Volt, 114mm OD, 6-35A Avalanche Diodes, M8×52.5mm Battery Post, M5×43.7mm Trio Post, with Trio.
Show less
Alternator Rectifier Diode with Trio for 1984-1985 Audi Coupe
A-Premium®Part # APALR053
Alternator Rectifier Diode with Trio for 1984-1985 Audi Coupe
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi Coupe: 1984 1985
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10183WTV
Note
【Note-1】 12 Volt, 8-35 Ampere Diodes, M8×52mm Battery Post.
【Note-2】 This item comes with Trio.
Show less
Alternator Rectifier Diode with Trio for 1984 Volkswagen Rabbit
A-Premium®Part # APALR053
Alternator Rectifier Diode with Trio for 1984 Volkswagen Rabbit
52 Reviews
$30.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1984 Volkswagen Rabbit
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10184178
Note
【Note-1】 12 Volt, 8-35 Ampere Diodes, M8×52mm Battery Post.
【Note-2】 This item comes with Trio.
Show less
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
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018SQZL
Note
This item comes With Copper Heat Sinks.
Show less
Alternator Rectifier Diode for 2009-2010 Chevrolet Express 1500
A-Premium®Part # APALR093
Alternator Rectifier Diode for 2009-2010 Chevrolet Express 1500
52 Reviews
$46.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Chevrolet Express 1500: 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
10503581, 10510904, DR3580, RD-40HA, RD40HA
ConditionNew
item #1018SSY0
Show less
Alternator Rectifier Diode for 2007-2010 Cadillac Escalade ESV
A-Premium®Part # APALR093
Alternator Rectifier Diode for 2007-2010 Cadillac Escalade ESV
52 Reviews
$46.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Cadillac Escalade ESV: 2007 2008 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
10503581, 10510904, DR3580, RD-40HA, RD40HA
ConditionNew
item #1018SRA5
Show less
Alternator Rectifier Diode for 2008-2009 Hummer H3
A-Premium®Part # APALR093
Alternator Rectifier Diode for 2008-2009 Hummer H3
52 Reviews
$46.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Hummer H3: 2008 2009
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
10503581, 10510904, DR3580, RD-40HA, RD40HA
ConditionNew
item #1018SLTU
Show less
Alternator Rectifier Diode for 2007-2010 GMC Yukon XL 2500
A-Premium®Part # APALR093
Alternator Rectifier Diode for 2007-2010 GMC Yukon XL 2500
52 Reviews
$46.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits GMC Yukon XL 2500: 2007 2008 2009 2010
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
10503581, 10510904, DR3580, RD-40HA, RD40HA
ConditionNew
item #1018SNGT
Show less
Alternator Rectifier Diode for 1997-2000 BMW 528i
A-Premium®Part # APALR018
Alternator Rectifier Diode for 1997-2000 BMW 528i
52 Reviews
$46.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits BMW 528i: 1997 1998 1999 2000
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1018SQX0
Note
This item does not come with Trio.
Show less
Alternator Rectifier Diode for 2002 Ford E-550 Econoline Super Duty
A-Premium®Part # APALR092
Alternator Rectifier Diode for 2002 Ford E-550 Econoline Super Duty
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2002 Ford E-550 Econoline 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 #1018SN3E
Show less
Alternator Rectifier Diode for 2004-2006 Ford Econoline
A-Premium®Part # APALR092
Alternator Rectifier Diode for 2004-2006 Ford Econoline
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Econoline: 2004 2005 2006
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SNZD
Show less
Alternator Rectifier Diode for 1995 Ford Sable
A-Premium®Part # APALR092
Alternator Rectifier Diode for 1995 Ford Sable
52 Reviews
$33.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1995 Ford Sable
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SPTE
Show less
Alternator Rectifier Diode for 1992-1999 2007 Ford E-350 Econoline
A-Premium®Part # APALR092
Alternator Rectifier Diode for 1992-1999 2007 Ford E-350 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-350 Econoline: 1992 1993 1994 1995 1996 1997 1998 1999 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
F5AZ10304AA, 136210, RF-053, FR2023, FODU10A366DAIP, F5AZ-10304-AA
ConditionNew
item #1018SN30
Show less
1...2728293031...69
Page 29 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