Alternator Drive Belt – Fits Volvo Penta D2 Series 50–75 HP (Replaces 3584086)

$29.55

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Product Details

This aftermarket Alternator Drive Belt – Fits Volvo Penta D2 Series 50–75 HP (Replaces 3584086) is engineered for Volvo Penta D2 Series 4-stroke diesel engines (50–75 HP) manufactured from 2005 to the present. It offers precise compatibility with D2-50F, D2-55 series, D2-60F, and D2-75 series models equipped with the 115A alternator.

This belt serves as a direct replacement for Volvo Penta part number 3584086 and Repowermarine RM3584086, ensuring a reliable fit and function.

Engine-mounted installation
Designed for use with the 115A alternator featuring a built-in charging sensor
Constructed from a durable rubber/synthetic composite for longevity

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number
Volvo Penta	3584086
Repowermarine	RM3584086

Engine & Model Compatibility

Confirm your engine model and year in the table below to ensure correct fitment.

Designed for specific Volvo Penta D2 series engines. Please verify your model is listed.

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 Specs

Product Type: Alternator Drive Belt
Installation: Engine-mounted
Housing Material: Rubber/Synthetic Composite
Housing Color: Black
Other Technical Attributes: For use with 115A alternator with built-in charging sensor
Warranty: 1-year against manufacturing defects (aftermarket)

What’s in the Box

1 x Alternator Drive Belt (3584086)

Installation Notes

Disconnect the vessel's battery bank and/or turn off the main power switch as a safety precaution.
Locate the alternator on the engine block. Identify the tensioner pulley and its adjustment bolt or mechanism.
Loosen the tensioner adjustment and pivot bolts to relieve tension on the old belt.
Carefully slip the old belt off the alternator, crankshaft, and any other pulleys.
Route the new belt according to the engine diagram in your owner's manual, ensuring it is seated correctly in all pulley grooves.
Apply tension to the belt by adjusting the tensioner. The correct tension typically allows for about a half-inch of deflection with firm thumb pressure. Do not overtighten.
Securely tighten the tensioner adjustment and pivot bolts.
Reconnect the battery power, start the engine, and visually inspect the new belt to ensure it is running true and not slipping.

Troubleshooting & FAQ

How do I know if this belt fits my specific engine?

This belt is specifically for Volvo Penta D2-50, D2-55, D2-60, and D2-75 series engines from 2005-present that use a 115A alternator. Please verify your engine model and part number 3584086 by checking our compatibility table and your engine's service manual.

What are common signs that my alternator belt needs replacement?

Symptoms of a worn or failing belt include high-pitched squealing noises upon startup or acceleration, visible cracks or fraying on the belt's surface, a battery warning light on your dashboard, or engine overheating due to a linked water pump.

What is the recommended replacement interval for this belt?

Refer to your Volvo Penta owner's manual for official service intervals. As a general rule, alternator belts should be inspected for wear, glazing, or cracking during every service and replaced every few years or as needed based on condition and use.

Can I install this belt myself?

Installation is manageable for individuals with mechanical experience. It involves locating the tensioner, releasing belt tension, and routing the new belt correctly. However, due to the importance of correct tensioning for proper charging and to avoid component damage, professional installation is recommended if you are not fully comfortable with the procedure.

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

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