Volvo Penta Drive Belt 21132390
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Volvo Penta Drive Belt – Part Number 21132390
The Volvo Penta Drive Belt (OEM Part No. 21132390) is a genuine OEM serpentine / multi-rib accessory drive belt for Volvo Penta marine gasoline engines. It transfers power from the crankshaft to the alternator, water pump, and other accessory systems — keeping your engine charged, cooled, and running properly on the water.
Part Details
- Part Number: 21132390
- Brand: Volvo Penta
- Official Product Type: Serpentine / Accessory Drive Belt
- MPN: 21132390
- Supersedes: 3817290, 3861034, 3889126
- System: Accessory Drive / Engine Belt Drive
Compatible Applications
- Volvo Penta 4.3L Series – 4.3GXi, 4.3GXiE, 4.3OSi variants
- Volvo Penta 5.0L Series – 5.0GXi, 5.0GXiE, 5.0OSi variants
- Volvo Penta 5.7L Series – 5.7Gi, 5.7GXi, 5.7OSi, 5.7OSXi variants
- Typically found in Volvo Penta V6 and V8 sterndrive and inboard marine applications
- Accessory belt configurations can vary by engine model, accessory layout, and production run — always verify using your engine serial number and the Volvo Penta parts diagram before ordering
System & Diagram Position
This belt is part of the accessory drive system and appears in the Volvo Penta engine belt drive diagram. It drives the alternator, raw water pump, and other belt-driven accessories. Refer to your engine's parts diagram to confirm the correct diagram position for your configuration.
Parts Desk Insights
Best use case: This is the correct replacement belt for 4.3L, 5.0L, and 5.7L Volvo Penta gasoline engines when the original belt shows cracking, glazing, fraying, or has reached its service interval. It's also the right part when upgrading from an older superseded belt number (3817290, 3861034, or 3889126) — 21132390 is the current OEM replacement for all three.
Common issues: Drive belt failures on marine engines are often missed during pre-season checks because the belt is tucked away in the engine compartment. A slipping or worn belt can cause charging problems, overheating from reduced water pump speed, or sudden accessory failure on the water. Customers frequently discover the belt is the culprit after chasing alternator or cooling issues.
Related Parts
- Volvo Penta Serpentine V Belt 21132390 – alternate listing for the same part number
- Volvo Penta Drive Belt 21951188
- Volvo Penta Belt 22029635
Service Interval
Volvo Penta recommends inspecting the accessory drive belt at every annual service and replacing it at the interval specified in your engine's service manual — typically every 3 years or 300 hours, whichever comes first. Replace immediately if cracking, glazing, fraying, or unusual noise is present.
Technical FAQ
Q: Does 21132390 replace 3817290, 3861034, and 3889126?
A: Yes. Part number 21132390 is the current OEM supersession for all three of those earlier belt numbers. If your engine originally used any of those part numbers, 21132390 is the correct replacement.
Q: How do I confirm this is the right belt for my engine?
A: Cross-reference your engine model, serial number, and the Volvo Penta parts diagram. Belt configurations can vary by accessory layout and production year, so serial number verification is important.
Q: Is this a genuine OEM part?
A: Yes. This is a genuine Volvo Penta OEM drive belt, not an aftermarket substitute.
Q: What are the symptoms of a failing drive belt?
A: Common signs include squealing or chirping from the engine compartment, battery not charging, overheating, or visible cracking and fraying on the belt surface.
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
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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.
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