Volvo Penta V-Belt 9415
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The Volvo Penta 9415 is an OEM-specification V-belt for the accessory drive system on Volvo Penta AQ and BB series gasoline marine engines. It is commonly used alongside the Volvo Penta V-Belt 9319 on dual-belt drive configurations, where each belt serves a separate accessory position — such as the alternator and the raw-water pump. Cross-reference: Volvo Penta part number 3851079.
Application Compatibility
Designed for Volvo Penta AQ and BB series gasoline marine engines that use a V-belt accessory drive. Engine model, serial-number range, and accessory package determine which belt positions are required and whether both the 9319 and 9415 are needed. Confirm the original part number against your engine's service documentation before ordering to ensure the correct cross-section and length for your specific drive configuration.
Fitment Notice
Do not substitute by approximate length alone. Confirm the OEM part number, belt cross-section, and pulley groove profile before installation. Volvo Penta engine builds can vary by model year, horsepower rating, and accessory package. Using an incorrect belt width or length can result in slipping, premature wear, or accessory failure.
When This Part Needs Replacement
Replace the belt when it shows cracking, glazing, fraying, missing material, oil saturation, or persistent squealing under load. A belt that rides low in the pulley groove or requires repeated tension adjustment is likely worn and should be replaced before it causes charging or cooling problems on the water. On dual-belt drives, it is good practice to replace both belts at the same service interval even if only one shows visible wear.
Installation Notes
Inspect all pulleys for wear, corrosion, misalignment, and contamination before fitting the replacement belt. Route the belt without forcing it over pulley flanges, then tension to the specification in your Volvo Penta engine service manual. Rotate the drive by hand to confirm correct seating and recheck tension after the initial run-in period. If the idler pulley shows wear or play, consider replacing the Volvo Penta Idler Pulley 3860201 or Volvo Penta Idler Pulley 3847482 at the same service interval.
Alternate Part Numbers
- Volvo Penta OEM part number: 9415
- Cross-reference: 3851079
Parts Desk Insights
The 9415 is best suited for Volvo Penta AQ and BB series engines running the original dual V-belt accessory drive. On these configurations, the 9415 and the Volvo Penta V-Belt 9319 work together — replacing both at the same time avoids a second service visit if the other belt fails shortly after. If you are unsure which belt your engine requires, cross-check the part number in your engine’s service manual or compare against the full range in our Volvo Penta Belts collection. When servicing the drive, inspect the idler pulleys at the same time — a worn pulley accelerates belt wear and can cause misalignment. For the full range of Volvo Penta drive components, browse our Belts, Hoses & Clamps collection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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