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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 Aluminum Heat Sinks for 1994 GMC SonomaAlternator Rectifier Diode with Aluminum Heat Sinks for 1994 GMC Sonoma
A-Premium®Part # APALR172
Alternator Rectifier Diode with Aluminum Heat Sinks for 1994 GMC Sonoma
52 Reviews
$26.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1994 GMC Sonoma
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L6XA
Note
【Note-1】 This item is a 12 Volt, 6–35A avalanche press-fit diode with 102 mm OD and an M8×46 mm battery post.
【Note-2】 For GMC Safari, this item only fits the model with 100 or 105 Amp Alternator.
【Note-3】 For Lumina & Monte Carlo & Pontiac, this item only fits the model with 105 Amp Alternator.
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Alternator Rectifier Diode for 1992-1994 Nissan Sentra
A-Premium®Part # APALR062
Alternator Rectifier Diode for 1992-1994 Nissan Sentra
52 Reviews
$31.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Sentra: 1992 1993 1994
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L7UL
Note
This item is a 12 Volt, 8–35A diode with 103 mm OD, an M6×43 mm battery post, and an M5×31.6 mm mounting bolt.
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Alternator Rectifier Diode with Trio for 1994-1995 Honda Civic del Sol
A-Premium®Part # APALR163
Alternator Rectifier Diode with Trio for 1994-1995 Honda Civic del Sol
52 Reviews
$34.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Honda Civic del Sol: 1994 1995
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015HNLX
Note
This item is a 12 Volt, 8–50A block/ampere diode with 92.5 mm OD and an M5×44 mm battery post.
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Alternator Rectifier Diode with Trio for 1993-1997 Ford Probe
A-Premium®Part # APALR103
Alternator Rectifier Diode with Trio for 1993-1997 Ford Probe
52 Reviews
$31.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford Probe: 1993 1994 1995 1996 1997
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LGYA
Note
This item is a 12 Volt, 8–35A block/ampere diode with an M5×44 mm battery post.
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Alternator Rectifier Diode for 1986-1992 Nissan Stanza
A-Premium®Part # APALR060
Alternator Rectifier Diode for 1986-1992 Nissan Stanza
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Stanza: 1986 1987 1988 1989 1990 1991 1992
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LASA
Note
【Note-1】 This item is a 12 Volt, 8–50A diode with 100 mm OD, an M6×44.4 mm battery post, and trio.
【Note-2】 This item comes with (M5+M4)×39.8 mm mounting bolt.
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Alternator Rectifier Diode for 1987-1990 Nissan Pulsar NX
A-Premium®Part # APALR060
Alternator Rectifier Diode for 1987-1990 Nissan Pulsar NX
52 Reviews
$23.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Nissan Pulsar NX: 1987 1988 1989 1990
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L8X5
Note
【Note-1】 This item is a 12 Volt, 8–50A diode with 100 mm OD, an M6×44.4 mm battery post, and trio.
【Note-2】 This item comes with (M5+M4)×39.8 mm mounting bolt.
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Alternator Rectifier Diode for 1982-1984 Pontiac Phoenix
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1982-1984 Pontiac Phoenix
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LA5K
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1983-1987 Buick Regal
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983-1987 Buick Regal
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Buick Regal: 1983 1984 1985 1986 1987
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015L91P
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1983-1985 1987-1989 Cadillac Seville
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983-1985 1987-1989 Cadillac Seville
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Cadillac Seville: 1983 1984 1985 1987 1988 1989
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LC84
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1983 AMC Concord
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983 AMC Concord
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L6Q5
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1983-1985 1987-1988 Oldsmobile Cutlass Supreme
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983-1985 1987-1988 Oldsmobile Cutlass Supreme
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Oldsmobile Cutlass Supreme: 1983 1984 1985 1987 1988
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LA1G
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
Show less
Alternator Rectifier Diode for 1985 Buick Somerset Regal
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1985 Buick Somerset Regal
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1985 Buick Somerset Regal
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L8ZN
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
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Alternator Rectifier Diode for 1983 Jeep CJ5
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983 Jeep CJ5
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L6TW
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
Show less
Alternator Rectifier Diode for 1983-1987 Buick Riviera
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983-1987 Buick Riviera
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Buick Riviera: 1983 1984 1985 1986 1987
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LCQP
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
Show less
Alternator Rectifier Diode with Heat Sinks for 1986 Mercury Marquis
A-Premium®Part # APALR169
Alternator Rectifier Diode with Heat Sinks for 1986 Mercury Marquis
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits 1986 Mercury Marquis
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Quantity1
Item LocatedUnited States
ConditionNew
item #1015LD0L
Note
This item is a 12V, 6–35A general diode with 119 mm OD and aluminum heat sinks.
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Alternator Rectifier Diode with Heat Sinks for 1987-1989 Ford E-150 Econoline Club Wagon
A-Premium®Part # APALR169
Alternator Rectifier Diode with Heat Sinks for 1987-1989 Ford E-150 Econoline Club Wagon
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Ford E-150 Econoline Club Wagon: 1987 1988 1989
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LC3L
Note
This item is a 12V, 6–35A general diode with 119 mm OD and aluminum heat sinks.
Show less
Alternator Rectifier Diode with Trio for 1982 1984-1985 Volkswagen Quantum
A-Premium®Part # APALR134
Alternator Rectifier Diode with Trio for 1982 1984-1985 Volkswagen Quantum
52 Reviews
$23.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Volkswagen Quantum: 1982 1984 1985
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015HLDZ
Note
This item is a 14 Volt, 6-35A diode with 114 mm OD and trio.
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Alternator Rectifier Diode for 1983-1987 Buick LeSabre
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983-1987 Buick LeSabre
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Buick LeSabre: 1983 1984 1985 1986 1987
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L79D
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
Show less
Alternator Rectifier Diode for 1984-1987 Pontiac Fiero
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1984-1987 Pontiac Fiero
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Pontiac Fiero: 1984 1985 1986 1987
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015L9NZ
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
Show less
Alternator Rectifier Diode for 1983-1988 Oldsmobile Firenza
A-Premium®Part # APALR176
Alternator Rectifier Diode for 1983-1988 Oldsmobile Firenza
52 Reviews
$19.99
Enter ZIP codeFree standard shipping
2-year warranty
90 days free return
Fits Oldsmobile Firenza: 1983 1984 1985 1986 1987 1988
Check if this fits your vehicle
Quantity1
Item LocatedUnited States
ConditionNew
item #1015LCVD
Note
【Note-1】 This item is a 12 Volt, 6–50A button diode with 80 mm OD.
【Note-2】 For 1983-1988 Oldsmobile Delta 88, this item fits for the Sedan model only, does not fit for the Coupe model.
Show less
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Page 49 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.

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