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INFINITI Alternator Rectifier Bridge

11 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 1991-1993 INFINITI G20Alternator Rectifier Diode with Trio for 1991-1993 INFINITI G20
A-Premium®Part # APALR118
Alternator Rectifier Diode with Trio for 1991-1993 INFINITI G20
52 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI G20: 1991 1992 1993
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Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LA7Q
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 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
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
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 1998-2001 INFINITI I30
A-Premium®Part # APALR014
Alternator Rectifier Diode for 1998-2001 INFINITI I30
52 Reviews
$41.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI I30: 1998 1999 2000 2001
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #10152447
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.
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Alternator Rectifier Diode for 1991-1993 INFINITI G20
A-Premium®Part # APALR148
Alternator Rectifier Diode for 1991-1993 INFINITI G20
52 Reviews
$31.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI G20: 1991 1992 1993
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #10184KPC
Note
12 Volt, 85mm OD, 8-35 Ampere Diodes, With M5×44mm Battery Post
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Alternator Rectifier Diode for 1996-1997 INFINITI I30
A-Premium®Part # APALR028
Alternator Rectifier Diode for 1996-1997 INFINITI I30
52 Reviews
$43.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI I30: 1996 1997
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #1015215G
Note
【Note-1】 24 Volt, 119mm OD, 8-50A Avalanche Diodes, M6×20.3mm Battery Post.
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
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Alternator Rectifier Diode for 2003-2008 INFINITI FX35
A-Premium®Part # APALR001
Alternator Rectifier Diode for 2003-2008 INFINITI FX35
52 Reviews
$32.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI FX35: 2003 2004 2005 2006 2007 2008
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HN29
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.
Show less
Alternator Rectifier Diode for 2002-2004 INFINITI I35
A-Premium®Part # APALR014
Alternator Rectifier Diode for 2002-2004 INFINITI I35
52 Reviews
$41.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI I35: 2002 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #101522PX
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 for 2003 INFINITI QX4
A-Premium®Part # APALR105
Alternator Rectifier Diode for 2003 INFINITI QX4
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 2003 INFINITI QX4
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7C8
Note
【Note-1】 This item is a 12 Volt, 8–35A avalanche diode with 100 mm mounting length and an M8×59.5 mm battery post.
【Note-2】 This item comes without trio/capacitor.
【Note-3】 For 2003-2004 Nissan Pathfinder, this item fits the model built before 12/03.
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Alternator Rectifier Diode for 1997-1999 INFINITI Q45
A-Premium®Part # APALR028
Alternator Rectifier Diode for 1997-1999 INFINITI Q45
52 Reviews
$43.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI Q45: 1997 1998 1999
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #10152609
Note
【Note-1】 24 Volt, 119mm OD, 8-50A Avalanche Diodes, M6×20.3mm Battery Post.
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
Show less
Alternator Rectifier Diode for 2001-2002 INFINITI QX4
A-Premium®Part # APALR028
Alternator Rectifier Diode for 2001-2002 INFINITI QX4
52 Reviews
$43.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI QX4: 2001 2002
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #101526EC
Note
【Note-1】 24 Volt, 119mm OD, 8-50A Avalanche Diodes, M6×20.3mm Battery Post.
【Note-2】 This item comes with M5×31.6mm Mounting Bolt.
Show less
Alternator Rectifier Diode for 2003-2004 INFINITI G35
A-Premium®Part # APALR105
Alternator Rectifier Diode for 2003-2004 INFINITI G35
52 Reviews
$34.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits INFINITI G35: 2003 2004
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: INFINITI
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LA92
Note
【Note-1】 This item is a 12 Volt, 8–35A avalanche diode with 100 mm mounting length and an M8×59.5 mm battery post.
【Note-2】 This item comes without trio/capacitor.
【Note-3】 For 2003-2004 Nissan Pathfinder, this item fits the model built before 12/03.
Show less

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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