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Alternator Drive Belt – Fits Volvo Penta D2 Series 50–75 HP (Replaces 3584086)
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Alternator Drive Belt – Fits Volvo Penta D2 Series 50–75 HP (Replaces 3584086)
This aftermarket alternator drive belt is engineered for Volvo Penta D2 Series 4-stroke diesel engines from 50 to 75 HP, manufactured from 2005 to the present. It is designed to meet or exceed OEM specifications for reliable power transmission to the alternator.
This component is a direct replacement for Volvo Penta part number 3584086 and other equivalent aftermarket parts.
- Engine Compatibility: Fits D2-50F, D2-55, D2-60F, and D2-75 engine models.
- Specific Application: Designed for engines equipped with the 115A alternator with a built-in charging sensor.
- Material: Constructed from a durable rubber and synthetic composite for longevity and resistance to heat and wear.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3584086 |
| Repowermarine | RM3584086 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Volvo Penta | D2-50F | 50 | 4-Stroke | 2005–Present | 3584086 |
| Volvo Penta | D2-55, D2-55B, D2-55C, D2-55D, D2-55E, D2-55F | 55 | 4-Stroke | 2005–Present | 3584086 |
| Volvo Penta | D2-60F | 60 | 4-Stroke | 2005–Present | 3584086 |
| Volvo Penta | D2-75, D2-75A, D2-75B, D2-75C, D2-75F | 75 | 4-Stroke | 2005–Present | 3584086 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Alternator Drive Belt |
| Installation | Engine-mounted |
| Housing Material | Rubber/Synthetic Composite |
| Housing Color | Black |
| Warranty | 1-year against manufacturing defects (aftermarket) |
| Other Technical Attributes | For use with 115A alternator with built-in charging sensor |
Package Contents
- 1 x Alternator Drive Belt (3584086)
Installation Guide
- Safety First: Disconnect the boat's battery terminals to prevent accidental starts or electrical shock.
- Locate the Belt: Identify the alternator and the existing drive belt on the front of the engine.
- Release Tension: Use the appropriate wrench to loosen the alternator's pivot and tensioning bolts or the belt tensioner pulley.
- Remove Old Belt: Once slack, carefully slip the old belt off the alternator and crankshaft pulleys.
- Route New Belt: Following the path of the old belt, route the new belt around the pulleys. Ensure the grooves are properly seated.
- Apply Tension: Re-tension the belt according to your engine's service manual specifications. A common rule is about a half-inch of deflection with firm thumb pressure.
- Tighten and Verify: Securely tighten all bolts you loosened earlier. Reconnect the battery and briefly run the engine to ensure the belt operates smoothly without noise.
Troubleshooting & FAQ
How do I confirm this belt fits my Volvo Penta D2 engine?
Verify your engine model (e.g., D2-55F, D2-75C) against the "Compatible Engine Models" table. This belt is a direct replacement for OEM part number 3584086 for the 50-75 HP D2 series engines.
Is this the correct belt for an engine with a 115A alternator?
Yes, this drive belt is specifically engineered for Volvo Penta D2 engines equipped with the 115A alternator that features a built-in charging sensor, which is standard on the compatible models listed.
What are the signs that my alternator belt needs replacing?
Common signs of a failing belt include visible cracks, fraying, or a glazed, shiny surface. You may also hear a squealing noise from the engine (especially on start-up) or see a battery warning light, indicating the alternator is not charging properly.
OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
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