Volvo Penta Accessory Belt Tensioner 24201573 | D11 D13 TAD1340–1346GE
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Part Details
- Part Number: 24201573
- Brand: Volvo Penta
- Type: Automatic accessory / alternator belt tensioner
- Supersedes: 21422765, 21819687
- System: Accessory drive — alternator and belt-driven component tensioning
- Diagram Position: Accessory / alternator belt drive assembly — automatic tensioner position
- Weight: Approx. 0.7 kg
About This Part
Genuine Volvo Penta 24201573 is the current OEM automatic belt tensioner for selected Volvo Penta heavy-duty D11 and D13-family industrial and marine-derived engines. It is the direct replacement for earlier tensioner numbers 21422765 and 21819687. The tensioner maintains consistent tension on the accessory / alternator drive belt as the belt wears and operating loads change, keeping the alternator and other belt-driven components running correctly. Because Volvo Penta uses different belt arrangements depending on engine configuration and installed accessories, fitment must be confirmed by engine model, serial number, and the specific accessory-drive diagram.
Compatible Applications
- Volvo Penta TAD1346GE — accessory belt tensioner position
- Selected Volvo Penta TAD1340 / TAD1341 / TAD1342 / TAD1343 belt systems
- Selected Volvo Penta D11 marine applications with supercharger
- Selected Volvo Penta D13 applications with viscous-fan clutch
- Applications previously using tensioner 21422765 or 21819687
D11 and D13-family engines can use different tensioners depending on alternator, fan-drive, and accessory configuration. Always confirm engine model and serial number against the applicable Volvo Penta accessory-drive diagram before ordering.
When to Replace
Inspect or replace the belt tensioner if any of the following are present:
- Excessive accessory belt movement or vibration during operation
- Belt squeal or recurring belt slippage
- Difficulty maintaining correct belt tension after belt replacement
- Tensioner pulley bearing noise, roughness, or excessive play
- Visible tensioner wear, cracking, corrosion, or misalignment
A worn tensioner shortens belt life and can affect alternator output and other belt-driven system performance.
Service Interval
Inspect the belt tensioner at every scheduled accessory drive or belt service. On high-hour engines, replace the tensioner whenever the drive belt is replaced. A tensioner that has been in service through multiple belt cycles should be considered a wear item, not a lifetime component.
Installation Notes
Inspect the drive belt, idler pulleys, alternator pulley, and all related belt-drive components while the tensioner is removed. Verify correct belt routing from the Volvo Penta engine accessory-drive diagram before releasing the automatic tensioner arm. Confirm the belt is fully seated in all pulley grooves before returning the engine to service. Follow Volvo Penta service-manual torque specifications for tensioner mounting hardware.
Superseded & Cross-Reference Part Numbers
- Current OEM: 24201573
- Supersedes: 21422765
- Supersedes: 21819687
Parts Desk Insight
This tensioner is most commonly needed during scheduled belt service or when belt slippage or accessory charging problems are traced back to a worn tensioner on D11 and D13-family engines. The most common ordering mistake is selecting a tensioner by engine displacement alone — the D11 and D13 families use different tensioners depending on alternator and fan-drive configuration, so the accessory-drive diagram is the only reliable guide. If you are replacing the drive belt at the same time, inspect the tensioner pulley bearing and replace the tensioner if there is any play or roughness — combining both items in one service interval is the most efficient approach on these engines.
Shipping information
In-stock and OEM parts: ship same or next business day.
Supplier-stock items are usually ready for pickup or shipping within 24 hours of ordering.
Special-order timing may vary.
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.