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Alternator (New)

Bosch AL8730N Alternator

Brand	Bosch AL8730N
Amperage Rating	105
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	313
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	Chevrolet and GMC · 108 vehicles

New alternator. Built and tested for dependable charging performance.

Aluminum case. Lightweight construction helps support durability and heat management.

Internal fan. Helps move air through the unit for efficient operation.

Cross-references 10464438 and 10464451 for the same application. See all 2.

$202.53Free shipping

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Bosch AL8730N Alternator Overview

The Bosch AL8730N is a new 12-volt alternator built for dependable charging performance in a range of GM trucks, SUVs, and vans. It is designed for vehicles that use a 105-amp alternator setup and features an internal fan, internal regulator, and included pulley for a direct replacement approach.

Bosch Alternator (New) products are part of the brand’s charging-system line focused on OE-style fit and consistent electrical output. The AL8730N follows that approach with aluminum case construction, clockwise rotation, and a 6-groove pulley configuration for applications that match the original design.

Key Features

12-volt alternator with a 105-amp rating
New unit with aluminum case and aluminum case color
Internal fan and internal regulator design
Clockwise rotation
6-groove pulley included, 57 mm outside pulley diameter
Plug type 313 with rear-view plug clock at 6 o’clock
External fan included
Not one-wire capable
Cross-reference part numbers: 10464438, 10464451

Detailed Description

Bosch AL8730N alternator, part number AL8730N, is engineered for vehicles that require a 105-amp charging system and a 6-groove belt drive. It is a direct-fit style replacement for select 1999-2004 Chevrolet and GMC applications, including Chevrolet Astro, Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon models listed in the fitment data. This alternator is also listed for Chevrolet Avalanche 1500 and 2500, Silverado HD variants, Suburban, Yukon XL, and Safari applications with the specified alternator configuration.

Built with an aluminum housing, internal fan, and internal regulator, the AL8730N is intended to restore stable charging output for vehicles experiencing alternator wear or electrical system decline. The included pulley and OE-style plug configuration help match the original charging-system layout on supported GM platforms. If you are searching for a Bosch AL8730N alternator for a Chevrolet Silverado 1500 or GMC Sierra 1500, this unit is listed for the exact model years shown below.

Vehicle Fitment

Fits 2001-2004 Chevrolet Astro, N/A
Fits 2001-2004 GMC Safari, N/A
Fits 2002 Chevrolet Avalanche 1500, N/A
Fits 2002 Chevrolet Avalanche 2500, N/A
Fits 1999-2002 Chevrolet Silverado 1500, N/A
Fits 2002 Chevrolet Silverado 1500, N/A
Fits 2001-2002 Chevrolet Silverado 1500 HD, N/A
Fits 1999-2002 Chevrolet Silverado 2500, N/A
Fits 2001-2002 Chevrolet Silverado 2500 HD, N/A
Fits 2001-2002 Chevrolet Silverado 3500, N/A
Fits 2001-2002 Chevrolet Suburban 1500, N/A
Fits 2000-2002 Chevrolet Suburban 2500, N/A
Fits 2000-2002 Chevrolet Tahoe, N/A
Fits 1999-2002 GMC Sierra 1500, N/A
Fits 2002 GMC Sierra 1500, N/A
Fits 2001-2002 GMC Sierra 1500 HD, N/A
Fits 1999-2002 GMC Sierra 2500, N/A
Fits 2001-2002 GMC Sierra 2500 HD, N/A
Fits 2001-2002 GMC Sierra 3500, N/A
Fits 2000-2002 GMC Yukon, N/A
Fits 2000-2002 GMC Yukon XL 1500, N/A
Fits 2000-2002 GMC Yukon XL 2500, N/A

Common Issues This Part Can Address

Low battery charging caused by a worn alternator
Dim lights or fluctuating electrical output
Battery warning light related to charging-system failure
Accessory performance problems from insufficient system voltage
Noise or belt-drive issues tied to a failing alternator pulley assembly

Installation Notes and Tips

Verify the vehicle’s original alternator rating, plug type, pulley groove count, and rotation direction before installation. This Bosch AL8730N alternator is not one-wire capable and uses an internal regulator, so connector and mounting-ear alignment should be checked against the original unit on Chevrolet Silverado, GMC Sierra, and related GM applications. Confirm the application notes for 105-amp alternator coverage, including first-production and “to 105 amp alternator” listings where shown.

Quality Assurance

Bosch Premium Alternators are built and tested for performance and reliability in charging-system service. The AL8730N is a new alternator designed to meet the requirements of the listed GM applications with OE-style construction and electrical specifications.

This part fits 108 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Fuel Type	Position	Notes
2004	Chevrolet	Astro	4.3L	V6	—	N/A	Alternator (New)
2004	GMC	Safari	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2003	Chevrolet	Astro	4.3L	V6	—	N/A	Alternator (New)
2003	GMC	Safari	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Astro	4.3L	V6	—	N/A	Alternator (New)
2002	Chevrolet	Avalanche 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Avalanche 2500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 1500	5.3L	V8	FLEX	N/A	To 105 Amp Alternator; First Production; Alternator (New)
2002	Chevrolet	Silverado 1500	5.3L	V8	GAS	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 1500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 2500	6.0L	V8	GAS	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 2500 HD	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 2500 HD	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 2500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 3500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 3500	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Silverado 3500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Suburban 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Suburban 2500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Suburban 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Tahoe	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	Chevrolet	Tahoe	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Safari	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 1500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; First Production; Alternator (New)
2002	GMC	Sierra 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 1500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 2500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 2500 HD	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 2500 HD	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 3500	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 3500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Sierra 3500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon XL 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon XL 1500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon XL 2500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2002	GMC	Yukon XL 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Astro	4.3L	V6	—	N/A	Alternator (New)
2001	Chevrolet	Silverado 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 1500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 2500 HD	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 2500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 2500 HD	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 3500	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 3500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Silverado 3500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Suburban 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Suburban 2500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Suburban 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Tahoe	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	Chevrolet	Tahoe	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Safari	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 1500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 1500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 2500 HD	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 2500 HD	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 2500 HD	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 3500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 3500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Sierra 3500	6.6L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon XL 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon XL 1500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon XL 2500	8.1L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2001	GMC	Yukon XL 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Silverado 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Silverado 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Silverado 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Silverado 2500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Silverado 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Suburban 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Tahoe	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	Chevrolet	Tahoe	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Sierra 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Sierra 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Sierra 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Sierra 2500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Sierra 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Yukon	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Yukon	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Yukon XL 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
2000	GMC	Yukon XL 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	Chevrolet	Silverado 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	Chevrolet	Silverado 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	Chevrolet	Silverado 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	Chevrolet	Silverado 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	Chevrolet	Silverado 2500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	GMC	Sierra 1500	4.3L	V6	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	GMC	Sierra 1500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	GMC	Sierra 1500	4.8L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	GMC	Sierra 2500	5.3L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
1999	GMC	Sierra 2500	6.0L	V8	—	N/A	To 105 Amp Alternator; Alternator (New)
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Directly replaces or cross-references 2 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

1046443810464451

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