Alternator – Fits Volvo Penta 4.3GL, 5.0GL, 5.7GL 2000–2007 (Replaces 3862612)
Alternator – Fits Volvo Penta 4.3GL, 5.0GL, 5.7GL 2000–2007 (Replaces 3862612) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Alternator – Fits Volvo Penta 4.3GL, 5.0GL, 5.7GL 2000–2007 (Replac...
Product Details
This is a new aftermarket Alternator – Fits Volvo Penta 4.3GL, 5.0GL, 5.7GL 2000–2007 (Replaces 3862612). It is designed to provide reliable, efficient charging power for 6-cylinder (4.3L) and 8-cylinder (5.0L, 5.7L) GM-based Volvo Penta gas engines manufactured between 2000 and 2007.
This unit serves as a direct replacement, providing an interchange for Volvo Penta 3862612, Valeo 2656299, Sierra 18-6848, and others, ensuring a precise fit and function.
- Engineered as a direct OEM-level replacement for easy installation.
- SAE J1171 Marine Certified for ignition protection in gasoline engine environments.
- Features an internal regulator and fan for a compact, self-contained design.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3862612 |
| Valeo | 2656299 |
| Valeo | 425299 |
| Valeo | A0002655299 |
| Sierra | 18-6848 |
| Arco | 60074 |
| Wilson | 90-22-5513 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This alternator is confirmed to fit the following Volvo Penta sterndrive/inboard models:
| Brand | Model | Engine | Configuration | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | 4.3GL | 4.3L/262CI | 6-Cylinder Gas | 2000–2007 | 3862612 | Inboard/Sterndrive |
| Volvo Penta | 5.0GL | 5.0L/305CI | 8-Cylinder Gas | 2000–2007 | 3862612 | Inboard/Sterndrive |
| Volvo Penta | 5.7GL | 5.7L/350CI | 8-Cylinder Gas | 2000–2007 | 3862612 | Inboard/Sterndrive |
Technical Specs
- Product Type
- Marine Alternator
- Installation
- Direct OEM Replacement
- Fuel Type
- Gasoline
- Voltage
- 12 Volts
- Amperage
- 65 Amps
- Rotation
- Clockwise (CW)
- Mount Type
- Spool
- Mounting Ear 1 Hole
- 5/16-18 Threaded
- Mounting Ear 2 Hole
- 9.6mm Unthreaded
- Mounting Ear 1 Thickness
- 11.4mm (0.449in)
- Mounting Ear 2 Thickness
- 50.7mm (1.996in)
- Regulator Clock Position
- 2:00
- Regulator Location
- Internal
- Fan Location
- Internal
- Polarity
- Negative
- Pulley Type
- V-Belt, Solid, Single Groove
- Pulley Diameter
- 72.7mm (2.862in)
- B+ Terminal
- M8 x 1.25
- S Terminal
- Spade
- L Terminal
- Spade
- Product Dimensions
- 20.5cm x 18.5cm x 18.0cm
- Weight
- 4.65kg (10.25 lbs)
- Certification
- SAE J1171 Marine Ignition Protection Certified
What’s in the Box
- 1 x Alternator (3862612)
Installation Notes
- Disconnect the negative terminal from your boat's battery or turn off the main battery switch.
- Loosen the alternator pivot bolt and tensioning bolt to slacken the drive belt, then remove the belt from the pulley.
- Carefully label and disconnect the electrical wires from the back of the old alternator (B+, L, and S terminals).
- Remove the mounting bolts and lift the old alternator out of the engine bay.
- Install the new alternator, securing the mounting bolts loosely. Reconnect the electrical connections to the correct terminals.
- Reinstall the drive belt, apply proper tension according to your engine's service manual, and tighten all mounting bolts securely.
- Reconnect the battery and start the engine to verify correct charging operation with a voltmeter (should read between 13.8V and 14.5V at idle).
Troubleshooting & FAQ
How do I know this alternator is the correct fit?
Verify your engine model and year against our compatibility table. Most importantly, compare the mounting type (Spool), pulley type (V-Belt), and electrical connections (B+, S, L terminals) to your existing alternator. If they match, it should be a direct replacement.
What are common signs of a failing alternator?
Symptoms include a "Check Battery" or "ALT" warning light on your dash, dimming lights, slow engine cranking, a dead battery, or a whining/grinding noise coming from the alternator. A voltmeter reading below 13.2V when the engine is running also indicates a charging problem.
Is this a direct bolt-on replacement?
Yes, this unit is designed to be a direct-fit replacement for the OEM part numbers listed in the Part Number Matrix. It matches the original mounting points, dimensions, and electrical connections for the specified Volvo Penta engines.
What tools are needed for installation?
You will typically need a standard socket and wrench set to remove mounting bolts and disconnect wires, a pry bar or belt tensioning tool to manage the drive belt, and a multimeter to test voltage before and after installation.
What is SAE J1171 Certification?
SAE J1171 is a safety standard for marine electrical components. It certifies that the alternator is "ignition protected," meaning it is designed to prevent sparks from escaping the unit, which is critical for preventing fires in a gasoline vapor environment like a boat's engine compartment.
Can I use this with a dual-battery system?
Yes, this alternator can be used in a system with a battery isolator or voltage-sensitive relay (VSR) to charge two separate batteries. Ensure your wiring and isolator are correctly rated for the 65-amp output.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
