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 2014-2015 Audi A3Alternator Rectifier Diode for 2014-2015 Audi A3
A-Premium®Part # APALR146
Alternator Rectifier Diode for 2014-2015 Audi A3
52 Reviews
$27.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Audi A3: 2014 2015
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LCCU
Note
This item is a 12 Volt, 6-50A avalanche diode with 120 mm OD, an M8×32 mm battery post (L) and an M8×26 mm battery post (R).
Show less
Alternator Rectifier Diode for 1999-2002 Daewoo Lanos
A-Premium®Part # APALR058
Alternator Rectifier Diode for 1999-2002 Daewoo Lanos
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Daewoo Lanos: 1999 2000 2001 2002
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HNDD
Note
This item is a 12 Volt, 6-50A avalanche diode with 100 mm OD.
Show less
Alternator Rectifier Diode for 1993-1998 Volkswagen Golf
A-Premium®Part # APALR017
Alternator Rectifier Diode for 1993-1998 Volkswagen Golf
52 Reviews
$31.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Golf: 1993 1994 1995 1996 1997 1998
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101887ZD
Note
14 Volt, Diodes: 6-50A Avalanche, Diameter OD: 112mm, With M8x30mm Battery Post, With Triot.
Show less
Alternator Rectifier Diode for 2005 Subaru Impreza
A-Premium®Part # APALR015
Alternator Rectifier Diode for 2005 Subaru Impreza
52 Reviews
$57.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2005 Subaru Impreza
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015251E
Note
【Note-1】 14 Volt, 8-35A Diodes, M5×44mm Battery Post.
【Note-2】 This item comes without Capacitor and Trio.
Show less
Alternator Rectifier Diode for 2000-2004 Subaru Outback
A-Premium®Part # APALR015
Alternator Rectifier Diode for 2000-2004 Subaru Outback
52 Reviews
$57.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Subaru Outback: 2000 2001 2002 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101523SL
Note
【Note-1】 14 Volt, 8-35A Diodes, M5×44mm Battery Post.
【Note-2】 This item comes without Capacitor and Trio.
Show less
Alternator Rectifier Diode for 1993-1997 Cadillac Seville
A-Premium®Part # APALR045
Alternator Rectifier Diode for 1993-1997 Cadillac Seville
52 Reviews
$38.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Cadillac Seville: 1993 1994 1995 1996 1997
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101523A1
Note
【Note-1】 12 Volt, 117.8mm OD, 6-50A Jumbo Avalanche Button, with Recessed Mounting Hole.
【Note-2】 For Cadillac DeVille 1997, fits the model with VIN 9.
Show less
Alternator Rectifier Diodes for 1998-2000 Mitsubishi Montero
A-Premium®Part # APALR012
Alternator Rectifier Diodes for 1998-2000 Mitsubishi Montero
52 Reviews
$55.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi Montero: 1998 1999 2000
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101524ZR
Note
8-35A Diodes, M8×59.5mm Battery Post.
Show less
Alternator Rectifier Diode for 2001-2005 Mercedes-Benz C320
A-Premium®Part # APALR024
Alternator Rectifier Diode for 2001-2005 Mercedes-Benz C320
52 Reviews
$51.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mercedes-Benz C320: 2001 2002 2003 2004 2005
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015220D
Note
14 Volt, 120mm OD, 6-50A Avalanche Diodes, M8×22mm Battery Post(L), M8×32mm Battery Post(R).
Show less
Alternator Rectifier Diode for 1999-2004 Volvo V70
A-Premium®Part # APALR024
Alternator Rectifier Diode for 1999-2004 Volvo V70
52 Reviews
$51.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volvo V70: 1999 2000 2001 2002 2003 2004
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10152423
Note
14 Volt, 120mm OD, 6-50A Avalanche Diodes, M8×22mm Battery Post(L), M8×32mm Battery Post(R).
Show less
Alternator Rectifier Diode for 1998 Pontiac Trans Sport
A-Premium®Part # APALR043
Alternator Rectifier Diode for 1998 Pontiac Trans Sport
52 Reviews
$32.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1998 Pontiac Trans Sport
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101521H3
Note
12 Volt, 118mm OD, Diodes: 6-50A Jumbo Avalanche Button.
Show less
Alternator Rectifier Diode with Trio Capacitor for 1991-1995 Mitsubishi 3000GT
A-Premium®Part # APALR023
Alternator Rectifier Diode with Trio Capacitor for 1991-1995 Mitsubishi 3000GT
52 Reviews
$58.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Mitsubishi 3000GT: 1991 1992 1993 1994 1995
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101521KN
Note
【Note-1】 14 Volt, 120.5mm OD, 8-35A Diodes, M6×49.5mm Battery Post.
【Note-2】 This item comes with Trio/Capacitor.
Show less
Alternator Rectifier Diode for 2002-2006 Nissan Altima
A-Premium®Part # APALR014
Alternator Rectifier Diode for 2002-2006 Nissan Altima
52 Reviews
$41.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Altima: 2002 2003 2004 2005 2006
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015253H
Note
【Note-1】 12 Volt, 119mm OD, 8-35A Avalanche Diodes, M6×20.3mm Battery Post.;
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2003-2005 Ford Thunderbird
A-Premium®Part # APALR009
Alternator Rectifier Diode with Aluminum Heat Sinks for 2003-2005 Ford Thunderbird
52 Reviews
$57.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Thunderbird: 2003 2004 2005
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101521NX
Note
【Note-1】 12 Volt, 117mm OD, 12-35A Avalanche Diodes, M6×34.5mm Battery Post.;
【Note-2】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2005 Cadillac DeVille
A-Premium®Part # APALR009
Alternator Rectifier Diode with Aluminum Heat Sinks for 2001-2005 Cadillac DeVille
52 Reviews
$57.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Cadillac DeVille: 2001 2002 2003 2004 2005
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101524RT
Note
【Note-1】 12 Volt, 117mm OD, 12-35A Avalanche Diodes, M6×34.5mm Battery Post.;
【Note-2】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2003-2006 Lincoln LS
A-Premium®Part # APALR009
Alternator Rectifier Diode with Aluminum Heat Sinks for 2003-2006 Lincoln LS
52 Reviews
$57.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Lincoln LS: 2003 2004 2005 2006
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101522X3
Note
【Note-1】 12 Volt, 117mm OD, 12-35A Avalanche Diodes, M6×34.5mm Battery Post.;
【Note-2】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode with Aluminum Heat Sinks for 2006-2008 Acura CSX
A-Premium®Part # APALR010
Alternator Rectifier Diode with Aluminum Heat Sinks for 2006-2008 Acura CSX
52 Reviews
$45.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Acura CSX: 2006 2007 2008
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015232P
Note
【Note-1】 12 Volt, 117mm OD, 6-50A Avalanche Diodes, M6×34.5mm Battery Post.;
【Note-2】 This item comes with Aluminum Heat Sinks.
Show less
Alternator Rectifier Diode for 1999-2001 2003-2007 Ford F-450 Super Duty
A-Premium®Part # APALR117
Alternator Rectifier Diode for 1999-2001 2003-2007 Ford F-450 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-450 Super Duty: 1999 2000 2001 2003 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #10196728
Note
12 Volt; 136mm OD; 8-35A General Diodes.
Show less
Alternator Rectifier Diode for 1999-2001 Ford E-350 Econoline Club Wagon
A-Premium®Part # APALR117
Alternator Rectifier Diode for 1999-2001 Ford E-350 Econoline Club Wagon
52 Reviews
$32.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-350 Econoline Club Wagon: 1999 2000 2001
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101964WW
Note
12 Volt; 136mm OD; 8-35A General Diodes.
Show less
Alternator Rectifier Diode for 2002-2007 Ford F-250 Super Duty
A-Premium®Part # APALR117
Alternator Rectifier Diode for 2002-2007 Ford F-250 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-250 Super Duty: 2002 2003 2004 2005 2006 2007
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #101968A8
Note
12 Volt; 136mm OD; 8-35A General Diodes.
Show less
Alternator Rectifier Diode for 2001-2002 Ford Crown Victoria
A-Premium®Part # APALR089
Alternator Rectifier Diode for 2001-2002 Ford Crown Victoria
52 Reviews
$42.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Crown Victoria: 2001 2002
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
Part interchange
139668, F5OZ-10300FA, F5OZ10300FA, FR3003, RF-063, RF063
ConditionNew
item #1018SRCN
Show less
1...3536373839...69
Page 37 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