140 Amp Alternator – Fits Volvo Penta D3 Series Diesel Engines (Replaces 8676498, 3803645)
140 Amp Alternator – Fits Volvo Penta D3 Series Diesel Engines (Replaces 8676498, 3803645) is backordered and will ship as soon as it is back in stock.
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140 Amp Alternator – Fits Volvo Penta D3 Series Diesel Engines (Replaces 8676498, 3803645) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket 140 Amp Alternator is designed for direct replacement on Volvo Penta D3 Series diesel engines from approximately 2003–2010, covering both inboard and sterndrive applications from 110 to 190 HP. It provides reliable charging power for your marine electrical system.
It serves as a direct interchange for Volvo Penta part numbers 8676498 and 3803645, as well as Bosch references 0124525014 and 0124525029.
- Engineered for direct OEM replacement fit and function.
- Features an internal cooling fan and a freewheel multi-V pulley.
- Provides a robust 140 Amp output at 12 Volts.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Volvo Penta | 8676498 |
| Volvo Penta | 3803645 |
| Bosch | 0124525014 |
| Bosch | 0124525029 |
Engine & Model Compatibility
Confirm your engine model and year in the table below to ensure correct fitment.
This alternator is built for the Volvo Penta D3 engine platform.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | D3-110I-A | 110 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-110I-B | 110 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-110I-C | 110 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-130A-A | 130 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-130A-B | 130 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-130A-C | 130 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-130I-A | 130 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-130I-B | 130 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-130I-C | 130 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-160A-A | 160 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-160A-B | 160 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-160A-C | 160 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-160I-A | 160 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-160I-B | 160 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-160I-C | 160 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-190A-B | 190 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-190A-C | 190 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-190I-A | 190 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-190I-B | 190 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
| Volvo Penta | D3-190I-C | 190 | 4-Stroke | 2003–2010 | 8676498, 3803645 | Diesel |
Technical Specs
- Product Type
- Marine Alternator
- Installation
- Direct OEM Replacement
- Voltage
- 12V
- Amperage
- 140A
- Rotation
- Anti-clockwise/Counterclockwise
- Pulley Type
- 6-Groove Serpentine Belt (50mm)
- Mounting Ear Width
- 30.00 mm
- Suspension Distance
- 82.00 mm
- Shaft Diameter
- 17.00 mm
- Regulator Plug
- PL149
- Other Attributes
- Internal cooling fan, freewheel multi-V pulley system
- Product Weight
- 7.3 kg (16.1 lbs)
- Product Dimensions
- 26.0 cm (L) x 25.0 cm (W) x 23.0 cm (H)
- Package Dimensions
- 26.0 cm (L) x 25.0 cm (W) x 23.0 cm (H)
What’s in the Box
- 1 x Alternator (Replaces 8676498, 3803645)
Installation Notes
- Disconnect the vessel's battery terminals (negative first, then positive) to prevent electrical shorts.
- Loosen the serpentine belt tensioner and remove the belt from the alternator pulley.
- Carefully label and disconnect the electrical wiring from the back of the old alternator.
- Remove the mounting bolts securing the alternator to the engine bracket and lift it out.
- Visually compare the new alternator with the old unit to confirm the mounting points and pulley design match.
- Position the new alternator and secure it with the original mounting bolts, tightening to manufacturer-specified torque.
- Reconnect the electrical connections securely.
- Reinstall the serpentine belt, ensuring it is properly routed and tensioned.
- Reconnect the battery terminals (positive first, then negative).
- Start the engine and verify the charging system is operating correctly.
Troubleshooting & FAQ
How can I confirm this alternator fits my specific Volvo Penta D3?
The surest way is to cross-reference the part number on your existing alternator. It should match one of the numbers listed in our Part Number Matrix (8676498, 3803645, etc.). Also, verify your engine model is listed in the compatibility table.
What are the common signs of a failing alternator?
Symptoms include dimming lights, a battery warning light on your dashboard, a frequently dead battery, slow-cranking engine, or grinding/whining noises coming from the alternator itself.
What do the A, B, and C suffixes in the D3 model names mean?
These letters typically denote minor production revisions or updates to the engine over its lifecycle. For this alternator, compatibility is maintained across these variants as shown in the engine list.
Does this alternator use an internal or external regulator?
This unit features an internal voltage regulator, connecting via the PL149 plug type. No external regulator is required.
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.
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