Marine V-Belt for Volvo Penta AQ120A/AQ120B, AQ125A/AQ125B, AQ140A, AQ145A, AQ165A and AQ170A/B/C (Replaces 831524, 834548, 958313, 960289 and 966694)
Marine V-Belt for Volvo Penta AQ120A/AQ120B, AQ125A/AQ125B, AQ140A, AQ145A, AQ165A and AQ170A/B/C (Replaces 831524, 834548, 958313, 960289 and 966694) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Marine V-Belt for Volvo Penta AQ120A/AQ120B, AQ125A/AQ125B, AQ140A,...
Marine V-Belt for Volvo Penta AQ120A/AQ120B, AQ125A/AQ125B, AQ140A, AQ145A, AQ165A and AQ170A/B/C (Replaces 831524, 834548, 958313, 960289 and 966694) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket marine V-belt is intended for specified Volvo Penta stern-drive and out-drive applications. It is supplied as one replacement belt for the engine's generator or alternator drive system.
The belt is listed for Volvo Penta AQ120A, AQ120B, AQ125A, AQ125B, AQ140A, AQ145A, AQ165A, AQ170A, AQ170B and AQ170C applications. Always compare the original belt and part number before ordering.
- Product type: Marine V-belt / drive belt
- Application: Volvo Penta stern-drive and out-drive systems
- Supply: One replacement belt
- Aftermarket reference: Sierra 18-4044
Part Number Matrix
The following references are associated with this replacement belt. Part-number matching should be confirmed against your engine documentation and the belt being removed.
| Brand | Part Number | Reference Type |
|---|---|---|
| Volvo Penta | 831524 | OEM reference |
| Volvo Penta | 834548 | OEM reference |
| Volvo Penta | 958313 | OEM reference |
| Volvo Penta | 960289 | OEM reference |
| Volvo Penta | 966694 | OEM reference |
| Sierra | 18-4044 | Aftermarket reference |
Engine & Model Compatibility
Compatibility below follows the available company fitment record. Model suffixes are important; do not assume that another AQ, BB, 230 or 250 model uses the same belt without confirming its original part number.
| Brand | Model | Product Application | OEM References |
|---|---|---|---|
| Volvo Penta | AQ120A | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ120B | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ125A | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ125B | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ140A | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ145A | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ165A | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ170A | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ170B | V-belt | 831524, 834548, 958313, 960289, 966694 |
| Volvo Penta | AQ170C | V-belt | 831524, 834548, 958313, 960289, 966694 |
Technical Specs
- Product Type
- Marine V-belt / drive belt
- Application
- Volvo Penta stern-drive and out-drive systems
- Drive Function
- Generator or alternator belt application
- Part Construction
- Replacement belt; exact material and dimensions are not specified in the company product record
- Aftermarket Reference
- Sierra 18-4044
What's in the Box
- 1 x aftermarket marine V-belt
Installation Notes
- Disconnect the battery and allow the engine to cool before beginning work.
- Locate the belt drive and identify the alternator or generator adjustment hardware.
- Loosen the adjustment and pivot hardware enough to remove the old belt without forcing it over the pulleys.
- Inspect the pulley grooves and surrounding components for damage, contamination or misalignment.
- Route the replacement belt over the correct pulleys and ensure it is fully seated in the grooves.
- Adjust belt tension according to the engine manufacturer's service instructions.
- Tighten the adjustment and pivot hardware, then rotate the engine by hand where appropriate to confirm correct tracking.
- Reconnect the battery and inspect the belt during a brief test run. Stop immediately if the belt slips, tracks incorrectly or makes abnormal noise.
Troubleshooting & FAQ
How do I confirm this V-belt is correct for my engine?
Match your original belt or service-manual reference to the listed Volvo Penta references: 831524, 834548, 958313, 960289 or 966694. Also confirm the complete engine model and suffix, such as AQ120A versus AQ120B.
What are the signs of a worn drive belt?
Squealing, slipping, glazing, cracking, fraying, abnormal belt dust and reduced charging performance can indicate belt wear, incorrect tension or pulley problems.
Why can a new belt squeal?
A new belt may squeal if it is incorrectly tensioned, contaminated by oil or grease, installed in the wrong pulley path or used with worn or misaligned pulleys. Inspect the complete drive system before continued operation.
Can I install this belt myself?
Replacement is a routine maintenance operation for an experienced mechanic, but correct routing and tension are essential. Use the engine service manual or seek professional assistance if you are unsure.
Is this an OEM belt?
No. This listing is for an aftermarket replacement belt. The listed Volvo Penta numbers are OEM references used for identification and fitment comparison.
Safety & Important Information
- Verify the complete engine model, suffix and original part number before ordering.
- Do not rely on a broad model family or visual similarity alone to confirm fitment.
- Disconnect the battery before installation and keep hands, clothing and tools away from moving components during testing.
- This is an aftermarket replacement, not an OEM component.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for marine engine and stern-drive maintenance.
- Reference-Based Fitment — Use the listed model and part-number information to compare your existing component before purchase.
- Practical Maintenance Support — Follow the engine manufacturer's service procedures for installation, adjustment and testing.
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