Bosch
Alternator (New)

Bosch AL8731N Alternator

Brand Bosch AL8731N
Amperage Rating 130
Case Color Aluminum
Case Material Aluminum
External Fan Included Yes
External Regulator Included Yes
Fan Type Internal
New Or Remanufactured New
One Wire Capable No
Original Equipment Manufacturer Names DE
Outside Pulley Diameter 57
Plug Clock Rear View Main Mounting Ear at 6 O Clock 3
Plug Type 314
Pulley Groove Quantity 6
Pulley Included Yes
Pulley Type 6S
Pulley Type / Belt Type (Alternator) 6S
Regulator Type Internal
Rotation Direction Clockwise
Voltage 12
Product line Alternator (New)
Fits Cadillac, Chevrolet, and GMC · 142 vehicles

New alternator. Built and tested for dependable charging performance.

Aluminum case. Helps keep weight down while resisting corrosion.

Internal fan. Promotes efficient cooling during operation.

Cross-references 10464405, 10464443 and 10464453 for the same application. See all 3.

$282.70Free shipping
In stock · usually ships same day before 1pm CST
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Order total $282.70
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Bosch AL8731N Alternator Overview

The Bosch AL8731N is a new 12-volt alternator built for dependable charging performance in GM truck and SUV applications. With a 130-amp rating, internal regulation, and a 6-groove pulley, it is a direct-fit electrical replacement for select Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and Cadillac Escalade models.

Bosch Premium Alternators are engineered, built, and tested for consistent output and reliable operation. The AL8731N uses an aluminum case, internal fan design, clockwise rotation, and a pulley included from the factory for a straightforward alternator replacement.

Key Features

  • New Bosch alternator, part number AL8731N
  • 12-volt charging system with 130-amp amperage rating
  • Internal regulator and internal fan design
  • 6-groove pulley, 57 mm outside pulley diameter
  • Aluminum case and aluminum case material for OE-style construction
  • Clockwise rotation direction
  • Plug type 314 with rear-view plug clock at 6 o’clock main mounting ear
  • External fan included and pulley included
  • Not one-wire capable

Detailed Description

The Bosch AL8731N alternator is designed for drivers replacing a worn or failing charging unit on GM full-size trucks and SUVs. It is a new alternator with internal voltage regulation, 130 amps of output, and a 6S pulley setup that matches the listed applications. This part number, AL8731N, is also cross-referenced to OE-style applications for the same vehicle platforms.

Compatible With 1999-2003 Chevrolet Silverado 1500, 1999-2002 Chevrolet Silverado 2500, 2000-2002 Chevrolet Suburban 1500, 2000-2002 GMC Sierra 1500, 2000-2002 GMC Yukon XL 1500, and other listed Chevrolet, GMC, and Cadillac applications. It also covers select 1996 Chevrolet Lumina APV and 2002 Cadillac Escalade models, including second-production notes where specified.

This part cross-references 10464405 and 10464443 for the same application.

What This Alternator Helps Solve

  • Battery warning light caused by low charging output
  • Dim headlights or electrical accessories losing power
  • Slow battery recovery after starting
  • Charging system failure from a worn alternator
  • Voltage instability in high-demand electrical systems

Installation Notes and Fitment Tips

  • Verify the vehicle’s amperage requirement before ordering; several listed applications specify up to 130 amps.
  • Check plug type 314 and rear mounting-ear clocking at 6 o’clock against the original unit.
  • Confirm pulley groove count and belt type match the existing drive system.
  • Review production notes such as standard, luxury, first production, or second production where shown in the fitment data.
  • Fits 2003 Chevrolet Silverado 1500, N/A; Fits 2002 Cadillac Escalade, N/A; Fits 2002 Cadillac Escalade EXT, N/A; Fits 2002 Chevrolet Avalanche 1500, N/A; Fits 2002 Chevrolet Avalanche 2500, N/A; Fits 2002 Chevrolet Silverado 1500, N/A; Fits 2001-2002 Chevrolet Silverado 1500, N/A; Fits 2002 Chevrolet Silverado 1500 HD, N/A; Fits 2002 Chevrolet Silverado 2500, N/A; Fits 2002 Chevrolet Silverado 2500 HD, N/A; Fits 2002 Chevrolet Silverado 3500, N/A; Fits 2001-2002 Chevrolet Suburban 1500, N/A; Fits 2000-2002 Chevrolet Suburban 2500, N/A; Fits 2001-2002 Chevrolet Tahoe, N/A; Fits 2000-2002 Chevrolet Tahoe, N/A; Fits 2001-2002 GMC Sierra 1500, N/A; Fits 2002 GMC Sierra 1500, N/A; Fits 2002 GMC Sierra 1500 HD, N/A; Fits 2002 GMC Sierra 2500, N/A; Fits 2002 GMC Sierra 2500 HD, N/A; Fits 2002 GMC Sierra 3500, N/A; Fits 2000-2002 GMC Yukon, N/A; Fits 2001-2002 GMC Yukon XL 1500, N/A; Fits 2000-2002 GMC Yukon XL 2500, N/A; Fits 2001 Chevrolet Silverado 1500 HD, N/A; Fits 2001 Chevrolet Silverado 2500, N/A; Fits 2001 Chevrolet Silverado 2500 HD, N/A; Fits 2001 Chevrolet Silverado 3500, N/A; Fits 2001 GMC Sierra 1500, N/A; Fits 2001 GMC Sierra 1500 HD, N/A; Fits 2001 GMC Sierra 2500, N/A; Fits 2001 GMC Sierra 2500 HD, N/A; Fits 2001 GMC Sierra 3500, N/A; Fits 2000 Chevrolet Silverado 1500, N/A; Fits 2000 Chevrolet Silverado 2500, N/A; Fits 2000 Chevrolet Suburban 1500, N/A; Fits 2000 GMC Sierra 1500, N/A; Fits 2000 GMC Sierra 2500, N/A; Fits 2000 GMC Yukon XL 1500, N/A; Fits 1999 Chevrolet Silverado 1500, N/A; Fits 1999 Chevrolet Silverado 2500, N/A; Fits 1999 GMC Sierra 1500, N/A; Fits 1999 GMC Sierra 2500, N/A; Fits 1996 Chevrolet Lumina APV, N/A.

Quality Assurance

Bosch Premium Alternators are built and tested to deliver consistent performance and reliability in demanding charging-system applications. The AL8731N is a new replacement alternator with OE-style construction and application-specific fitment details for accurate selection.

This part fits 142 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2003ChevroletSilverado 15004.3LV6—N/AAlternator (New)
2002CadillacEscalade6.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002CadillacEscalade5.3LV8—N/ATo 130 Amp Alternator; Second Production; Alternator (New)
2002CadillacEscalade EXT6.0LV8—N/AAlternator (New)
2002ChevroletAvalanche 15005.3LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletAvalanche 25008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 15004.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 15004.3LV6—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 15005.3LV8FLEXN/ALuxury version; To 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 15005.3LV8GASN/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 15005.3LV8FLEXN/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 1500 HD6.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 25006.0LV8BI-FUELN/ATo 130 Amp Alternator; Second Production; Alternator (New)
2002ChevroletSilverado 25006.0LV8GASN/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 25006.0LV8CNGN/ATo 130 Amp Alternator; Second Production; Alternator (New)
2002ChevroletSilverado 2500 HD6.6LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 2500 HD6.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 2500 HD8.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 35006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 35008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSilverado 35006.6LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSuburban 15005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002ChevroletSuburban 25008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002ChevroletSuburban 25006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002ChevroletTahoe5.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002ChevroletTahoe4.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 15004.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 15005.3LV8—N/ATo 130 Amp Alternator; First Production; Alternator (New)
2002GMCSierra 15005.3LV8—N/ATo 130 Amp Alternator; Second Production; Alternator (New)
2002GMCSierra 15006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 15004.3LV6—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 1500 HD6.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 25006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 2500 HD6.6LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 2500 HD6.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 2500 HD8.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 35006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 35008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCSierra 35006.6LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCYukon4.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCYukon6.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002GMCYukon5.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002GMCYukon XL 15005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002GMCYukon XL 15006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2002GMCYukon XL 25008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2002GMCYukon XL 25006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 15004.3LV6—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 15005.3LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 15004.8LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 15004.8LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 15004.3LV6—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 15005.3LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 1500 HD6.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 1500 HD6.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 25006.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 25006.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 2500 HD6.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 2500 HD8.1LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 2500 HD8.1LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 2500 HD6.6LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 2500 HD6.6LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 2500 HD6.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 35006.6LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 35006.6LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 35008.1LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 35008.1LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 35006.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSilverado 35006.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001ChevroletSuburban 15005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001ChevroletSuburban 25008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2001ChevroletSuburban 25006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001ChevroletTahoe5.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001ChevroletTahoe4.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2001GMCSierra 15006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2001GMCSierra 15004.8LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 15004.3LV6—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 15004.8LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 15004.3LV6—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 15005.3LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 15005.3LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 1500 HD6.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 1500 HD6.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 25006.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 25006.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 2500 HD8.1LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 2500 HD8.1LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 2500 HD6.6LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 2500 HD6.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 2500 HD6.6LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 2500 HD6.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 35006.6LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 35006.6LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 35006.0LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 35008.1LV8—N/ANot for luxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 35008.1LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCSierra 35006.0LV8—N/ALuxury version; To 130 Amp Alternator; Alternator (New)
2001GMCYukon4.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2001GMCYukon5.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001GMCYukon6.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001GMCYukon XL 15005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001GMCYukon XL 15006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2001GMCYukon XL 25008.1LV8—N/ATo 130 Amp Alternator; Alternator (New)
2001GMCYukon XL 25006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2000ChevroletSilverado 15005.3LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000ChevroletSilverado 15004.3LV6—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000ChevroletSilverado 15004.3LV6—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000ChevroletSilverado 15005.3LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000ChevroletSilverado 15004.8LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000ChevroletSilverado 15004.8LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000ChevroletSilverado 25005.3LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000ChevroletSilverado 25006.0LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000ChevroletSilverado 25006.0LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000ChevroletSilverado 25005.3LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000ChevroletSuburban 15005.3LV8—N/ATo 130 Amp Alternator; Alternator (New)
2000ChevroletSuburban 25006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
2000ChevroletTahoe5.3LV8—N/ATo 130 Amp Alternator; Alternator (New)
2000ChevroletTahoe4.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2000GMCSierra 15005.3LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000GMCSierra 15004.3LV6—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000GMCSierra 15004.8LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000GMCSierra 15005.3LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000GMCSierra 15004.3LV6—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000GMCSierra 15004.8LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000GMCSierra 25005.3LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000GMCSierra 25006.0LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000GMCSierra 25006.0LV8—N/AStandard; To 130 Amp Alternator; Second Production; Alternator (New)
2000GMCSierra 25005.3LV8—N/AStandard; To 130 Amp Alternator; First Production; Alternator (New)
2000GMCYukon4.8LV8—N/ATo 130 Amp Alternator; Alternator (New)
2000GMCYukon5.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
2000GMCYukon XL 15005.3LV8—N/ATo 130 Amp Alternator; Alternator (New)
2000GMCYukon XL 25006.0LV8—N/ATo 130 Amp Alternator; Alternator (New)
1999ChevroletSilverado 15004.8LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999ChevroletSilverado 15004.3LV6—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999ChevroletSilverado 15005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999ChevroletSilverado 25005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999ChevroletSilverado 25006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999GMCSierra 15004.8LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999GMCSierra 15005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999GMCSierra 15004.3LV6—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999GMCSierra 25005.3LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1999GMCSierra 25006.0LV8—N/AStandard; To 130 Amp Alternator; Alternator (New)
1996ChevroletLumina APV3.4LV6—N/ATo 140 Amp Alternator; Alternator (New)
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
104644051046444310464453