OE Quality
60-Day Returns

Bosch AL8805X Alternator
Reliable Remanufactured Alternator for Select GM and Isuzu Models
The Bosch AL8805X Alternator (Remanufactured) is designed to restore charging system performance in various Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles. Engineered to meet original equipment specifications, this 12-volt alternator ensures consistent power delivery and durability for models like the Trailblazer, Envoy, and Ascender.
Key Features of Bosch AL8805X Alternator
- Voltage: 12 volts for standard automotive electrical systems
- Amperage Rating: 150 amps to support vehicle electrical demands
- Rotation Direction: Clockwise for proper engine compatibility
- Internal fan type with external fan included for efficient cooling
- Includes pulley with 6 grooves and 62 mm outside diameter
- Internal regulator type with external regulator included
- Plug Type: 314 with 4-pin plug clock rear view main mounting ear at 6 o'clock
- Case made of aluminum with aluminum color finish for corrosion resistance
- Compatible with 6s pulley and belt type
About Bosch Alternator (Remanufactured) Product Line
The Bosch Alternator (Remanufactured) line offers remanufactured alternators that meet strict quality standards to provide reliable electrical charging and starting performance. These alternators are rebuilt using original equipment manufacturer components and undergo rigorous testing to ensure they deliver consistent amperage and fitment. The AL8805X is part of this line, combining durability with cost-effective restoration for your vehicle's charging system.
Detailed Product Description
This Bosch AL8805X remanufactured alternator is engineered to replace the original alternator in select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles, including models such as the 9-7x, Ascender, Bravada, Envoy, Envoy XL, Envoy XUV, Rainier, Trailblazer, and Trailblazer EXT. Featuring a 12-volt system and a 150-amp output, it supports the electrical needs of modern vehicles. The clockwise rotation and 6-groove pulley ensure proper mechanical compatibility. The alternator includes an internal fan complemented by an external fan for optimal cooling, and it comes with an internal regulator plus an external regulator included, enhancing voltage control and system stability. The aluminum case provides durability and corrosion resistance, while the plug type 314 and mounting ear position facilitate straightforward installation.
Common Issues Addressed by This Alternator
- Battery not charging or slow battery drain
- Dim or flickering headlights and electrical accessories
- Warning lights related to charging system on the dashboard
- Unusual noises from the alternator pulley or fan
- Intermittent electrical failures or vehicle stalling
Installation Notes and Tips
- Ensure vehicle compatibility with Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models listed
- Verify clockwise rotation and pulley groove count match the original alternator
- Check plug type 314 and mounting ear position for proper fit
- Inspect belt condition and replace if worn during installation
- Follow manufacturer torque specifications for mounting bolts
Quality Assurance and Warranty
This Bosch AL8805X remanufactured alternator is built to meet OEM standards and undergoes comprehensive testing to ensure reliable performance. It is packaged securely in a box to prevent damage during transport. While specific warranty details are not provided here, Bosch remanufactured alternators typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Bosch |
|---|---|
| Part Number | AL8805X |
| Position | Alternator (Remanufactured) |
| Amperage Rating | 150 |
| 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 | Remanufactured |
| One Wire Capable | No |
| Original Equipment Manufacturer Names | DE |
| Outside Pulley Diameter | 62 |
| Packaging | Box |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 4 |
| 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 |
| Unit(s) per Car Qty (ORLY) | 1 |
| Voltage | 12 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Buick | Rainier | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2005 | GMC | Envoy | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2005 | GMC | Envoy XL | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2005 | Isuzu | Ascender | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2005 | Saab | 9-7x | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2004 | GMC | Envoy | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2004 | GMC | Envoy XL | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2004 | GMC | Envoy XUV | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2004 | Isuzu | Ascender | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2004 | Oldsmobile | Bravada | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2003 | GMC | Envoy | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2003 | GMC | Envoy XL | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2003 | Isuzu | Ascender | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2003 | Oldsmobile | Bravada | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2002 | GMC | Envoy | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
| 2002 | GMC | Envoy XL | 4.2L | L6 | N/A | Alternator (Remanufactured) |
| 2002 | Oldsmobile | Bravada | 4.2L | L6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.