Your cart is empty
0
items
Subtotal:$0.00
:
from
to
Clear
Clear
 |  | |
Bosch AL0740X - Alternator
MPN: AL0740X
The Bosch AL0740X Alternator is designed for BMW M5 models, ensuring efficient electrical power generation. Built to OEM specifications for dependable performance.
Vehicle Specific
Check if this part fits your vehicle.
Product Overview
The Bosch AL0740X Alternator is a high-performance rebuilt alternator engineered to meet or exceed OEM specifications for BMW vehicles. This 140A alternator plays a vital role in your vehicle's electrical system by converting mechanical energy from the engine into electrical energy, ensuring all components operate efficiently. With OE-level quality and reliability, the Bosch AL0740X is designed for optimal fitment in various BMW models. Choose Bosch AL0740X for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Bosch AL0740X is equivalent to or replaces the following part numbers: 12311315434.
Vehicle Compatibility
- BMW M5 3.6 L6 (1991–1993)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Exclusive Kits That Fit™ - complete repair solutions with no guesswork
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
- Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the Bosch AL0740X Alternator do?
The alternator is responsible for generating electrical power for your vehicle's electrical systems and charging the battery. It converts mechanical energy from the engine into electrical energy, ensuring your vehicle operates efficiently.
How do I know if my alternator needs replacement?
Common signs that the Bosch AL0740X Alternator may need replacement include a battery warning light illuminated on the dashboard, dim or flickering headlights, electrical issues with accessories such as the radio or power windows, and a dead battery or difficulty starting the vehicle.
Can I install the Bosch AL0740X myself?
Yes, you can install the Bosch AL0740X Alternator yourself if you have basic automotive knowledge. However, ensure you follow safety precautions and consult the service manual for detailed instructions specific to your vehicle model.
What are the symptoms of a faulty alternator?
Symptoms of a faulty alternator include erratic electrical behavior, such as dimming headlights and issues with power accessories. If you see DTCs such as P0562 or P0563, it may indicate a failing alternator.
Why should I choose Bosch for my alternator needs?
Bosch is a trusted name in automotive components, delivering quality and reliability. Order Bosch AL0740X today for a factory-correct replacement that restores safety and performance.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.
- BrandBosch
- ManufacturerBosch
- MPNAL0740X
- Part TypeAlternator
- OE Part Numbers12311315434
- FeaturesAlternator/Generator Rotation : Clockwise
Amperage Rating : 140
Case Color : Aluminum
Case Material : Aluminum
Cases Per Pallet (ORLY) : 60
External Fan Included : Yes
External Regulator Included : Yes
Fan Type : External
New Or Remanufactured : Remanufactured
One Wire Capable : No
Original Equipment Manufacturer Names : BO
Outside Pulley Diameter : 70
Packaging : Box
Plug Clock Rear View Main Mounting Ear at 6 O Clock : 12
Plug Type : 381
Pulley Groove Quantity : 1
Pulley Included : Yes
Pulley Type / Belt Type (Alternator) : 1V
Pulley Type : 1V
Regulator Type : Internal
Unit(s) per Car Qty (ORLY) : 1
Voltage : 12
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1991 | BMW | M5 | Base (3.6 L6 GAS) | Notes: To 140 Amp Alternator |
| 1992 | BMW | M5 | Base (3.6 L6 GAS) | Notes: To 140 Amp Alternator |
| 1993 | BMW | M5 | Base (3.6 L6 GAS) | Notes: To 140 Amp Alternator |
Warranty Overview
At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, contact customer support via Chat or Contact Us.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For complete details, please see our full Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.
