Volvo Penta Alternator V-Belt 966900 – 2001 2002 2003 Series Diesel
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Volvo Penta 966900 – Alternator V-Belt
Part Number: 966900
Brand: Volvo Penta
Type: Alternator / Accessory Drive V-Belt (OEM)
System: Charging – Alternator Drive
Engine Family: Volvo Penta 2000-Series Marine Diesel
Belt Profile: Conventional V-Belt
Approximate Length: ~825 mm
Weight: 0.4 kg
Supersedes: 958303
The Volvo Penta 966900 is a genuine OEM V-belt used to drive the alternator from the crankshaft pulley on selected Volvo Penta 2000-series and classic MD-series marine diesel engines. Replacing the earlier part number 958303, it maintains battery charging and electrical system operation while the engine is running.
Compatible Applications
Volvo Penta 2000-Series Diesel Engines
- Volvo Penta 2001B
- Volvo Penta 2001BG
- Volvo Penta 2002 / 2002AG / 2002B / 2002BG
- Volvo Penta 2002D
- Volvo Penta 2003 / 2003B
- Volvo Penta 2003T / 2003TB
- Volvo Penta 2003R
Classic MD-Series Diesel Engines
- Volvo Penta MD1 / MD1B
- Volvo Penta MD2 / MD2B
- Volvo Penta MD3 / MD3B
- Volvo Penta MD5 Series
- Volvo Penta MD11C / MD11D
In the 2000-series family, belt fitment can vary depending on engine version and accessory configuration. Always confirm using your exact engine model designation and serial number before ordering.
Serial Number Fitment Notice
Closely related 2000-series engines can use different belt lengths depending on the installed cooling and accessory setup. Confirm part number 966900 against your engine identification plate — located on the engine block or valve cover — before ordering.
Superseded Part Numbers
- Current active number: 966900
- Supersedes: 958303
Specifications
- Belt type: Conventional V-Belt
- Application: Alternator / accessory drive
- Approximate length: ~825 mm
When to Replace
- Belt shows cracking, glazing, fraying, or sidewall wear
- Belt is stretched or has lost tension and cannot be re-tensioned
- Persistent squealing from the alternator drive area
- Charging system performance is reduced
- At each scheduled maintenance interval or annually as a preventive measure on engines in regular service
Installation Notes
Inspect the alternator pulley, crankshaft pulley, and belt alignment before fitting the new belt. Set belt tension to the Volvo Penta specification for your engine model. Recheck tension after the first hour of operation — new belts typically seat slightly and may require a tension adjustment on re-inspection.
Service Interval
Replace at the Volvo Penta maintenance schedule interval for your engine, or whenever inspection reveals cracking, glazing, or reduced charging performance. On engines that operate seasonally, inspect the belt at commissioning each season and replace if it shows any deterioration from off-season storage.
Technical FAQ
Q: What is the difference between 966900 and 958303?
A: 966900 is the current Volvo Penta OEM part number. It supersedes the earlier number 958303. If your parts reference shows 958303, order 966900 as the current replacement.
Q: Is this a serpentine belt or a V-belt?
A: This is a conventional single-groove V-belt, not a serpentine (multi-rib) belt. Ensure you are ordering the correct belt type for your engine’s alternator drive system.
Q: How do I know if the belt is the right length?
A: Confirm fitment by engine model and serial number. Do not rely on measuring the old belt — a stretched or worn belt may measure longer than the correct replacement. Use the Volvo Penta parts catalog for your exact engine to confirm 966900 is the correct belt.
Parts Desk Insights
Part 966900 is best matched by engine model, not by measuring the old belt. On 2000-series engines, closely related models can use different belt lengths depending on the cooling and accessory configuration, so confirming the exact engine designation before ordering is important. If a customer is unsure of their engine model, the identification plate on the engine block or valve cover will have the information needed.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.