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BoschPart #: AL8730N
Bosch AL8730N Alternator
⚙️ 108 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Alternator (New)
🚗Fitment: Chevrolet and GMC, Astro, Safari, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 1500, Suburban 2500, Tahoe, Sierra 1500, Sierra 1500 HD, Sierra 2500, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, and Yukon XL 2500
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Not what you need? Click here for all Alternator options
Reliable Bosch Alternator for Chevrolet and GMC Vehicles
The Bosch AL8730N Alternator (New) is designed to provide consistent 12-volt electrical power for a range of Chevrolet and GMC trucks and SUVs. Engineered to meet OEM specifications, this alternator supports the charging system needs of models like the Silverado 1500, Sierra 2500 HD, and Yukon XL 2500.
- Voltage: 12V for standard automotive electrical systems
- Rotation Direction: Clockwise for proper engine compatibility
- Fan Type: Internal with included external fan for efficient cooling
- Pulley: 6-groove pulley included, 57mm outside diameter
- Amperage Rating: 105 amps to support vehicle electrical demands
- Regulator Type: Internal regulator included for stable voltage output
- Case Material and Color: Durable aluminum case in aluminum finish
- Plug Type: 313 with 3-pin plug clock rear view main mounting ear at 6 o'clock
- External Regulator Included: Yes
- New unit, not remanufactured
About the Bosch Alternator (New) Product Line
The Bosch Alternator (New) product line focuses on delivering brand-new alternators built to original equipment standards. This line ensures reliable performance and durability by incorporating internal regulators and high-quality aluminum cases. The AL8730N model exemplifies this line by combining robust construction with precise fitment for Chevrolet and GMC vehicles.
Detailed Product Description
The Bosch AL8730N alternator is engineered for vehicles requiring a 12-volt charging system with a 105-amp output. Its clockwise rotation and internal fan design optimize cooling and efficiency during operation. The included 6-groove pulley with a 57mm diameter matches factory specifications, ensuring proper belt alignment and tension. The alternator features an internal voltage regulator and an external regulator included, providing stable electrical output to protect vehicle electronics. The aluminum case offers corrosion resistance and lightweight durability, suitable for heavy-duty applications in trucks and SUVs.
Common Applications and Issues Addressed
- Replacement for failing or underperforming alternators in Chevrolet Silverado 1500 and GMC Sierra 2500 HD
- Resolves battery charging problems and electrical system malfunctions
- Addresses dimming headlights and accessory power loss in GMC Yukon XL 2500
- Fixes warning lights related to charging system faults
- Restores proper function to vehicles experiencing intermittent electrical failures
Installation Notes and Tips
- Ensure vehicle battery is disconnected before installation to prevent electrical shorts
- Verify clockwise rotation compatibility with your specific engine model
- Check pulley groove count and diameter to match existing belt system
- Confirm plug type 313 and mounting ear position at 6 o'clock for proper fitment
- Use appropriate torque specifications when securing alternator to avoid damage
Quality Assurance and Warranty
This Bosch AL8730N alternator is a new, OEM-quality replacement part manufactured with high-grade aluminum and tested for durability and performance. Bosch provides warranty coverage consistent with industry standards for new alternators, ensuring reliability and peace of mind for professional and DIY installations.
| Brand | Bosch |
| Part Number | AL8730N |
| Position | Alternator (New) |
| Amperage Rating | 105 |
| Case Color | Aluminum |
| Case Material | Aluminum |
| Cases Per Pallet (ORLY) | 60 |
| 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 |
| Unit(s) per Car Qty (ORLY) | 1 |
| Voltage | 12 |
This part fits 108 vehicles. Search below:
| 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) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
1046443810464451
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.