SKU: 65980363329

3812159 Alternator Drive Belt for Volvo Penta D1-13 D1-13B D1-20 D1-20B D1-30 D1-30B D1-13F D1-20F D1-30F D2-40 D2-40B D2-40F | JLM Marine

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Description

3812159 Alternator Drive Belt for Volvo Penta D1-13 D1-13B D1-20 D1-20B D1-30 D1-30B D1-13F D1-20F D1-30F D2-40 D2-40B D2-40F | JLM Marine3812159 Alternator Drive Belt for Volvo Penta D1 13 D1 13B D1 20 D1 20B D1 30 D1 30B D1 13F D1 20F D1 30F D2 40 D2 40B D2 40F This Alternator Drive Belt is engineered to fit Volvo Penta D1 and D2 series marine engines, delivering reliable power transmission between the crankshaft and alternator. Designed for diesel sailboat and auxiliary engines ranging from 13 to 40 horsepower, this belt ensures consistent charging performance in demanding marine

3812159 Alternator Drive Belt for Volvo Penta D1-13 D1-13B D1-20 D1-20B D1-30 D1-30B D1-13F D1-20F D1-30F D2-40 D2-40B D2-40F

This Alternator Drive Belt is engineered to fit Volvo Penta D1 and D2 series marine engines, delivering reliable power transmission between the crankshaft and alternator. Designed for diesel sailboat and auxiliary engines ranging from 13 to 40 horsepower, this belt ensures consistent charging performance in demanding marine environments.

This aftermarket replacement belt directly replaces OEM part numbers 3812159 and 21951188, providing a cost-effective solution without compromising quality or durability.

  • Precision-fit for Volvo Penta D1 and D2 marine diesel engines
  • Direct replacement for OEM alternator drive belts
  • Engineered for marine-grade durability and heat resistance

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Volvo Penta 3812159
Volvo Penta 21951188

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model
Volvo Penta D1-13
Volvo Penta D1-13B
Volvo Penta D1-13F
Volvo Penta D1-20
Volvo Penta D1-20B
Volvo Penta D1-20F
Volvo Penta D1-30
Volvo Penta D1-30B
Volvo Penta D1-30F
Volvo Penta D2-40
Volvo Penta D2-40B
Volvo Penta D2-40F

Technical Specifications

Specification Value
Type Marine Engine Drive Belt
Motor & Engine Type Volvo Penta D1 D2 Marine Engines
OEM Part Number 3812159, 21951188

Package Contents

Your package includes:

  • 1 × Alternator Drive Belt

Installation Guide

  1. Disconnect the negative battery terminal to prevent accidental starts during installation.
  2. Locate the alternator and identify the tensioning mechanism on your Volvo Penta engine.
  3. Loosen the alternator mounting bolts to create slack in the old belt. If equipped with an automatic tensioner, relieve tension using the appropriate tool.
  4. Remove the old alternator drive belt from the pulleys, noting the belt routing path for reference.
  5. Inspect all pulleys for wear, damage, or debris, and clean surfaces as needed.
  6. Route the new belt around the crankshaft pulley and alternator pulley following the original path.
  7. Adjust the alternator position to apply proper tension to the belt—typically 10–15 mm deflection when pressed with moderate finger pressure at the belt's midpoint.
  8. Tighten the alternator mounting bolts securely once proper tension is achieved.
  9. Reconnect the negative battery terminal.
  10. Start the engine and verify that the belt runs smoothly without slipping, squealing, or misalignment.
  11. Allow the engine to run for several minutes and re-check belt tension after initial break-in.
  12. Inspect the belt periodically during the first few operating hours and adjust tension if necessary.

Troubleshooting & FAQ

Q: How do I confirm this belt fits my Volvo Penta engine?
A: Cross-reference your engine model with our compatibility table above. If your engine is a D1 or D2 series model listed (D1-13, D1-20, D1-30, D2-40, and their B/F variants), and your original belt carries part number 3812159 or 21951188, this belt is the correct fit.

Q: How often should I replace the alternator drive belt?
A: Volvo Penta recommends inspecting the belt every 200 operating hours and replacing it every 800 hours or annually, whichever comes first. Replace immediately if you notice cracking, glazing, fraying, or signs of wear.

Q: What are the signs that my alternator belt is failing?
A: Common symptoms include squealing or chirping noises during engine operation, dimming electrical systems or low battery voltage, visible cracks or fraying on the belt surface, and loss of alternator charging function. Replace the belt promptly if any of these occur.

Q: Will this belt perform the same as the original Volvo Penta belt?
A: Yes, this aftermarket belt is manufactured to OEM specifications using comparable-grade materials. It is designed to deliver the same fit, tension characteristics, and durability as the original part.

Q: Is this an OEM part or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 65980363329

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John Lim
Massapequa, US
★★★★★ 5
Only Orthodoxy Will Lead to Orthopraxy and Orthopathy
Format: Kindle
This book authored by David Croteau is truly an enjoyable yet at the same time a convicting read. Even though it was written about 10 years ago, the principles of interpretation advocated by him to deal with the "mistaken and misleading legends" are timeless. Out of the 40 legends, I have encountered at least half of them in the local church, writings and even seminary especially issues pertaining to salvation, Christian living and women's adornment. The main takeaway is this: Just as there are three things that matter in property: "Location, Location, Location", similarly the three main things that matter in interpretation of the Word is: "Context, Greek, and Background Information", or even simpler: "Context, Context, Context". David Croteau has demonstrated in his 40 legends the utmost importance of context in correctly interpreting a particular passage which was unfortunately taken out of context. The interpretation can further be handled even more accurately by taking into account the Greek language and the socio-historical background behind the text. In fact, I have been focusing on these three elements in my hermeneutical approach whenever I come across passages which I need more understanding. I don't know Greek; but with the many useful online Greek tools nowadays, I can always do a word study which more or less balances my lacking of Greek knowledge. Also, the study of socio-historical background is extremely illuminating if one have access to these resources. Personally, I discover that a proper understanding of background information can eliminate most of the mistaken or misleading interpretation of a text. Lastly, I totally agree with David Croteau's conclusion: "In the end our goal should be to interpret Scripture as accurately as possible, to apply that interpretation to our own lives, and to be transformed by God’s Word so that our lives may bring glory to the One who rescued us from an eternal destiny in hell." His conclusion reminds me of a phrase which I encountered years ago: "Orthodoxy Will Lead to Orthopraxy and Orthopathy." Indeed, only by "accurately handling the word of truth" (2 Tim 2:15) can we realise the necessity of holy living and the proper response that we should have towards our living God.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2025
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Josh Gerber
Birmingham, US
★★★★★ 5
The book is also great in pointing to additional resources for further study
Format: Paperback
Other than the Bible, I hesitate to use the term "must read" for a book. This one is definitely a "should read" for anyone who teaches, preaches, or wants to minister more faithfully. The book is engaging, and offers both a negative (doesn't mean this) and positive (means this) response to common urban legends of the NT. You'll be surprised by some beliefs you had that you didn't even realize were not correct, or should be adjusted. The book is also great in pointing to additional resources for further study. Pastors, seminarians, and lay people will all benefit from this book.
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Reviewed in the United States on July 17, 2015
D
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David Pitman
Lowell, US
★★★★★ 5
Rescuing the Bible from its Friends
The inerrant, infallible Word of God has endured countless intentional assaults of misrepresentation by its enemies. Unfortunately it has also had to endure the unintentional insults of misinterpretation by its friends. Dr. Croteau has given us an excellent handbook to gently correct. His specific examples are well considered and his general principles are well established. Highly recommended.
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Reviewed in the United States on August 19, 2015
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T. Durey
San Leandro, US
★★★★★ 4
Thoughtful, Encouraging, Didactic and Accessible
The title is what drew me to the book, and then the shortness of the chapters convinced me to take up this book and read it. I've read various types of theology books, but this one addresses underlying viewpoints that the average Christian assumes. While addressing these legends, the author does a wonderful job helping the reader grow in his or her biblical interpretational skills. And the author does this in a way that is both gracious and easy to understand. Even if a reader may not agree with every conclusion, I heartily recommend this book, not only for the legends it addresses, but for the opportunity to learn how to interpret the Bible.
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Reviewed in the United States on January 10, 2017
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Jose Verdejo
Alexandria, US
★★★★★ 5
So fun and engaging way to learn the historical and the ...
Format: Paperback
So fun and engaging way to learn the historical and the context of all covered in the book. Highly recommended....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2016

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