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Bosch AL3381X Alternator
Reliable Remanufactured Alternator for Lexus ES350 and RX350
The Bosch AL3381X Alternator (Remanufactured) is designed to restore the electrical charging system of your Lexus ES350 or RX350. Engineered to meet OEM specifications, this 12-volt alternator ensures consistent power delivery and reliable performance for your vehicle's electrical needs.
Key Features of Bosch AL3381X Alternator
- Voltage: 12 volts for standard automotive electrical systems
- Amperage Rating: 150 amps to support high electrical loads
- Rotation Direction: Clockwise for proper engine compatibility
- Internal Fan Type for efficient cooling
- Internal Regulator Type for stable voltage output
- Pulley Included with 7 grooves (7s-dp belt type)
- Outside Pulley Diameter: 52 mm
- Plug Clock Rear View Main Mounting Ear positioned at 6 o'clock
- Durable Aluminum Case Material and Color for heat dissipation and corrosion resistance
About the Bosch Alternator (Remanufactured) Product Line
The Bosch Alternator (Remanufactured) line offers remanufactured alternators that meet strict quality standards to provide a cost-effective alternative to new units. Each alternator undergoes a comprehensive remanufacturing process, including testing and replacement of worn components, to ensure reliable operation and compatibility with specific vehicle models such as the Lexus ES350 and RX350.
Detailed Product Description
This Bosch AL3381X remanufactured alternator is engineered to deliver 150 amps of electrical current at 12 volts, suitable for the demanding electrical systems of Lexus ES350 and RX350 models. The clockwise rotation and internal fan design optimize cooling and mechanical compatibility. The included pulley features 7 grooves and measures 52 mm in diameter, designed for 7s-dp belt types commonly used in these vehicles. The aluminum case provides durability and efficient heat dissipation, while the internal voltage regulator maintains consistent electrical output to protect your vehicle's battery and electrical components.
Common Issues Addressed by This Alternator
- Battery not charging or frequent battery drain
- Dimming or flickering headlights and dashboard lights
- Electrical system warning lights illuminated on the dashboard
- Unusual noises from the alternator area due to worn components
- Failure to start or intermittent stalling caused by insufficient electrical power
Installation Notes and Tips
Ensure the vehicle is turned off and the battery is disconnected before beginning installation. Verify the clockwise rotation direction and mounting ear position at 6 o'clock to match your Lexus ES350 or RX350 configuration. Confirm the pulley groove count and belt type compatibility (7 grooves, 7s-dp) for proper belt alignment. It is recommended to inspect the serpentine belt and replace it if worn to maintain optimal alternator performance.
Quality Assurance and Warranty
Each Bosch AL3381X alternator is remanufactured to meet or exceed OEM standards, ensuring reliable performance and durability. Bosch provides a limited warranty on this remanufactured alternator, covering defects in materials and workmanship. Refer to Bosch's warranty documentation for specific terms and conditions.
| Brand | Bosch |
| Part Number | AL3381X |
| Position | Alternator (Remanufactured) |
| Voltage | 12 |
| Plug Clock Rear View Main Mounting Ear at 6 O Clock | 4 |
| Fan Type | Internal |
| Rotation Direction | Clockwise |
| Pulley Included | Yes |
| Pulley Groove Quantity | 7 |
| Case Color | Aluminum |
| Outside Pulley Diameter | 52 |
| Regulator Type | Internal |
| Case Material | Aluminum |
| Amperage Rating | 150 |
| Cases Per Pallet (ORLY) | 100 |
| New Or Remanufactured | Remanufactured |
| Original Equipment Manufacturer Names | Nd |
| Pulley Type / Belt Type (Alternator) | 7s-dp |
This part fits 13 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Lexus | ES350 | 3.5L | V6 | N/A | Japan Built; To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2017 | Lexus | ES350 | 3.5L | V6 | N/A | Japan Built; To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2016 | Lexus | ES350 | 3.5L | V6 | N/A | Japan Built; To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2015 | Lexus | ES350 | 3.5L | V6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2015 | Lexus | RX350 | 3.5L | V6 | N/A | To 150 Amp Alternator; Except Japan Built; Alternator (Remanufactured) | |
| 2015 | Lexus | RX350 | 3.5L | V6 | N/A | Japan Built; To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2014 | Lexus | ES350 | 3.5L | V6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2014 | Lexus | RX350 | 3.5L | V6 | N/A | To 150 Amp Alternator; Except Japan Built; Alternator (Remanufactured) | |
| 2014 | Lexus | RX350 | 3.5L | V6 | N/A | Japan Built; To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2013 | Lexus | ES350 | 3.5L | V6 | N/A | To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2013 | Lexus | RX350 | 3.5L | V6 | N/A | Japan Built; To 150 Amp Alternator; Alternator (Remanufactured) | |
| 2012 | Lexus | ES350 | 3.5L | V6 | N/A | Alternator (Remanufactured) | |
| 2012 | Lexus | RX350 | AWD | 3.5L | V6 | N/A | From 03/2012; Japan Built; 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.