SKU: 35757879425

Alternator Drive Belt – Fits Volvo Penta 4.3GL, 4.3GS & OMC Marine Engines (Replaces 3852504)

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Description

Alternator Drive Belt – Fits Volvo Penta 4.3GL, 4.3GS & OMC Marine Engines (Replaces 3852504)Alternator Drive Belt Fits Volvo Penta 4. 3GL, 4. 3GS & OMC Marine Engines (Replaces 3852504) This high quality aftermarket alternator drive belt is engineered for reliable power transmission in a wide range of Volvo Penta and OMC marine engines. It is specifically designed to fit Volvo Penta 4. 3L (262ci) V6 models from 19851993 and various OMC Sterndrive engines from 2. 3L to 8. 2L manufactured between 1982 and 1993. This v belt serves as a direct

Alternator Drive Belt – Fits Volvo Penta 4.3GL, 4.3GS & OMC Marine Engines (Replaces 3852504)

This high-quality aftermarket alternator drive belt is engineered for reliable power transmission in a wide range of Volvo Penta and OMC marine engines. It is specifically designed to fit Volvo Penta 4.3L (262ci) V6 models from 1985–1993 and various OMC Sterndrive engines from 2.3L to 8.2L manufactured between 1982 and 1993.

This v-belt serves as a direct replacement for Volvo Penta part number 3852504 and OMC part numbers 0778031, 0910371, and 3852504. Manufactured from durable neoprene/rubber with polyester/aramid reinforcement, it meets or exceeds OEM specifications for performance and longevity.

  • Engineered with a V-belt design for optimal pulley grip and performance.
  • Constructed to withstand harsh marine environments with an operating temperature range of -40°C to 100°C.

Part Number Cross-Reference

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

Brand Part Number Notes
Volvo Penta 3852504 OEM
OMC 0778031 / 0910371 / 3852504 OEM. Supersession chain: 0778031 was replaced by 0910371, which was replaced by 3852504.
Sierra RM3852504 Aftermarket
Recmar RM3852504 Aftermarket

Compatible Engine Models

Confirm your engine model/year in the table below.

Volvo Penta

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta 4.3GL 190 HP 4-Stroke 1985-1993 3852504 V6, 4.3L (262 cubic inches)
Volvo Penta 4.3GS 190-210 HP 4-Stroke 1985-1993 3852504 V6, 4.3L (262 cubic inches)
Volvo Penta 4.3GI Marine Engines 4-Stroke 3852504 Includes models: 4.3GIPNCACE, 4.3GIPNCMCE, 4.3GLMMDA, 4.3GLPMDA, 4.3GLPNCA, 4.3GSJNCS, 4.3GSPMDA, 4.3GSPNCA, 4.3GSPNCM

OMC

Brand Model Stroke Years OEM Part No. Notes
OMC Cobra 4.3L Sterndrive 4-Stroke 1985-1993 0778031/0910371/3852504 Supersession: 0778031 → 0910371 → 3852504
OMC Sterndrive 2.3L 4-Stroke 1987-1988 0778031/0910371/3852504 Model 232APRGDP
OMC Sterndrive 4.3L 4-Stroke 1985-1993 0778031/0910371/3852504 Multiple model variants
OMC Sterndrive 5.0L/5.7L 4-Stroke 1982-1993 0778031/0910371/3852504 Multiple model variants
OMC Sterndrive 7.4L 4-Stroke 1987-1990 0778031/0910371/3852504 Models 744AMRGDP, 744APRGDP, 744APEPWS
OMC Sterndrive 8.2L 4-Stroke 1983-1985 0778031/0910371/3852504 Models 502FTHRCRA, 502SPHRCRA, 502STHRCRA, etc.

Technical Specifications

Specification Value
Product Type Alternator Drive Belt
Installation Engine-specific routing; requires tension adjustment
Housing Material Neoprene/rubber with polyester/aramid reinforcement
Housing Color Black
Operating Temperature -40°C to 100°C (-40°F to 212°F)
Warranty 1-Year (aftermarket); Varies by manufacturer
Other Technical Attributes V-belt design; OEM specification construction

Package Contents

  • 1 x Alternator Drive Belt (3852504)

Installation Guide

  1. Safety First: Disconnect the boat's battery before beginning work.
  2. Locate Belt: Identify the alternator and the existing drive belt routing around the crankshaft and alternator pulleys.
  3. Release Tension: Loosen the alternator's adjusting and mounting bolts to create slack in the belt.
  4. Remove Old Belt: Carefully slip the old, worn belt off the pulleys.
  5. Install New Belt: Route the new belt according to your engine's specific diagram, ensuring it is properly seated in all pulley grooves.
  6. Set Tension: Pry the alternator outward to apply tension to the new belt and tighten the adjusting bolt. Proper tension is typically around 1/2 inch of deflection when pushed firmly.
  7. Secure Alternator: Once tension is correct, fully tighten all alternator mounting bolts.
  8. Final Check: Reconnect the battery, start the engine, and listen for any unusual noises. Ensure the belt is tracking correctly on the pulleys.

Troubleshooting & FAQ

How do I confirm this belt fits my Volvo Penta or OMC engine?
This belt is designed for Volvo Penta 4.3GL, 4.3GS, and 4.3GI V6 engines (1985-1993) and various OMC Sterndrive models from 2.3L to 8.2L (1982-1993). Always cross-reference your engine model and year with our compatibility tables above. The surest method is to match your original part number to one of the replacements: Volvo Penta 3852504 or OMC 0778031, 0910371, 3852504.

What are common signs that my alternator belt needs replacing?
Look for visible signs of wear such as cracking, fraying, glazing (shiny surface), or missing chunks. Audible symptoms include a persistent high-pitched squeal from the engine, especially on startup or when electrical load increases. Dimming lights or a battery/charging warning light on your dashboard also indicate the alternator may not be spinning effectively due to a slipping belt.

How often should I inspect or replace my alternator belt?
It is good practice to visually inspect engine belts at the start of each season and during regular maintenance. While there's no fixed replacement interval, belts should be replaced immediately if they show signs of significant wear or damage, or typically every 3-5 years as a preventative measure depending on usage and conditions.

OEM vs. Aftermarket?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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: 35757879425

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4.4 ★★★★★
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Krystina
Lake Worth, US
★★★★★ 5
A bewitching retelling of Arthurian legend!
Format: Kindle
In a land where the Fae have nearly become only a legend and those who still posses even a morsel of the blood are few and far between, Morgan finds herself cast aside by most of society due to her rumored half-Fae lineage, including her brother, King Arthur. With the kingdom at the brink of war, Arthur entrusts her with a quest to retrieve a Fae weapon of legendary power: the sword of Perun, Excalibur. Accompanied by men she loathes, Captain Kairos Draven and Ragnar Whitehorn, she embarks on her long and unbeknownst perilous journey, only to find that things she once believed to be myth are in fact very real. With devastating twists, omitted truths, witty banter and fierce action, Queen of Roses leaves you begging to know more about the secrets of Aercanum! Wow, wow, wow! Going into this story, I did not realize that it was going to be a retelling of Arthurian legend, especially not one with a fantastical twist! The unique spin almost gave me The Witcher vibes and I think adding Fae into the mix was quite interesting. I knew the basics of the legend but after reading this book, it has piqued my interest and makes me want to learn more about it. My attention was snatched as soon as I finished the prologue and I knew that I was going to devour this story. I truly enjoyed the gender swaps and even how Arthur was portrayed as villainous. Morgan’s past and even her parts of her present is absolutely heartbreaking, and I felt for her at times. I can only recall one other book that made me hate characters the way I despised Florian and Arthur, leaving me with my blood boiling and feeling disgusted. Even after finishing the book, Draven is still a mystery to me and I cannot figure out how to feel about him. I guess they just means that the author did an excellent job at conveying each character’s persona! The rich world building and imagery made it easy for me to visualize the places that the group visited along their journey. I am truly engulfed in this story and I cannot wait to see wait fate awaits Morgan and how the Fae will be even more incorporated in the next book!. I received a free copy of this book and am voluntarily leaving a review.
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Reviewed in the United States on August 11, 2023
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Tiana
Battle Creek, US
★★★★★ 4
Enchanting
Format: Kindle
"Queen of Roses" by Briar Boleyn is a delightful and refreshing reimagining of the classic tale of King Arthur, with a captivating twist that places the spotlight on Morgan, a character who has often been overshadowed in traditional retellings. Boleyn's creative decision to shift the narrative perspective to Morgan breathes new life into the story, offering readers an intriguing and compelling look at the Arthurian world from an entirely different angle. One of the most commendable aspects of this book is its incorporation of Fae elements, which adds an enchanting layer of magic and mystery to the already familiar Arthurian setting. Boleyn skillfully weaves the world of the Fae into the narrative, creating a captivating backdrop against which the events of the story unfold. This addition not only adds depth to the world-building but also provides ample opportunities for twists and turns that keep readers thoroughly engrossed. However, while the book boasts numerous strengths, it does have one noticeable flaw: the characterization of Morgan. While it is reasonable to create a flawed and complex protagonist, it appears that at times, Morgan's character becomes overly difficult and hard to relate to. Her persistently negative perception of one of the main male characters, who is a potential love interest, despite his efforts to support and assist her, may come across as somewhat irrational and could test the patience of some readers. Striking a balance between a strong, independent character and one who can recognize genuine support and affection could have enhanced the overall reader experience. Nonetheless, the allure of "Queen of Roses" lies in its innovative approach to the Arthurian legend and its skillful blending of fantasy elements into a familiar narrative. Boleyn's evocative prose draws readers into a world where magic, destiny, and fate entwine, leaving us eager to uncover the mysteries that unfold within the pages. I received a free copy of this book via Booksprout and am voluntarily leaving a review.
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Reviewed in the United States on July 28, 2023
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Verified Purchase
Stephanie
Bozeman, US
★★★★★ 5
An action-packed dark romantasy
Format: Kindle
I loved this book! Queen of Roses is an Arthurian-inspired dark romantasy that is the first book in the Blood of Fae series. The story follows Morgan, the princess of Camelot who is rumored to be part fae. Fueled by prejudiced hatred and a mistrust of fae blood, Morgan’s abusive father strips her of her birthright and hands it to her half-brother, Arthur. Instead of becoming queen, Morgan is commanded to join the temple of the goddesses when she comes of age. However, Arthur turns into a psychopathic, power-hungry, fae-hating king as he ages. He develops malevolent plans and commands Morgan to find an ancient weapon with legendary power. Although Morgan is wary of Arthur’s intentions, she embraces the opportunity to go on a journey and potentially change her fate. The story picks up from there and we follow Morgan on her quest to find the ancient relic. It’s full of high stakes adventure, mystery, tension, banter, forced proximity, hidden magic, self discovery, and betrayal. This first installment of the series intricately develops the world building and character development. There’s little romance in this book, but it is evident that it is a slow burn that will continue to develop throughout the remainder of the series. Overall, I loved the world building, the epic fantasy, Morgan’s journey of self discovery, and all of the twists and turns that set the stage for the future installments. I can’t wait to see what happens next!
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Reviewed in the United States on April 7, 2024
A
Verified Purchase
AlynReads
Natrona Heights, US
★★★★★ 4
Arthurian Fae Quest…say less.
Format: Kindle
A fae centered Arthurian tale unlike any I’ve read so far. The author did a great job at descriptive world building, with scenes easily playing out in my minds eye. There was plenty of action, suspense, and even a touch of horror. An enemies to lovers, slow burn romance, a quest, with plot twist and turns aplenty. There was a love triangle, which I’m not usually a fan of but, it played out well in this story line. The FMC, Morgan Pendragon, was so blatantly naïve, yet I typically expect as much in a ‘book one’ of a series, especially one that features a fairly sheltered princess. I was happy to read that in spite of this, she still showed a strong sense of morals, fire, and spine. Now our MMC? Kairos Draven, aka Void’s Edge. Oh, how I’m a sucker for a smoking’ hot grumpy warrior alpha with a witty mouth, and a strong sense of “touch her and die” attitude, so you know who held all my cards. That ending? Just made me swoon all the harder. Now add a battlecat that rivals the size of a horse…and well Ms. Briar Boleyn you have well and truly stolen my heart. I’m excited to see where the story goes from here, and follow along to see more of the characters growth. I went into this story fairly blind, and I think I enjoyed it all the more because of it. Once the story got going, it had me in an absolute chokehold and it was difficult to put down.
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Reviewed in the United States on May 12, 2024
A
Verified Purchase
Ariel
Carnegie, US
★★★★★ 3
Not a bad start
Format: Kindle
3 stars Thank you Netgalley and Briar Boleyn for the ARC! A camelot/king Arthur retelling with fae. I was hooked by the idea of this book immediately and was eager to jump into this world. • slow burn • enemies to lovers • who did this to you Morgan Pendragon watched her mother die by her father's hand when she was just eight years old, hiding under the bed. Morgan is believed to have the tainted blood of the fae in her veins and is cast aside so that her fathers illegitimate son, Arthur, can become the king. She's seen his cruel treatment of the fae firsthand, so when he sends her on a journey to find a fae weapon she seizes the opportunity to do more with her life. Along the way, she finds more than she could have imagined. I don't know a whole lot about King Arthur and Camelot but I had a lot of fun with this story! The plot has some similar tropes to popular romantasy books (From blood and ash) but there's enough originality here that it doesn't feel like I'm reading a copy. I liked how the fae were different in appearance than what is typical in most fantasy books I've read. In this book they have blue hair, violet skin and a wide range of other characteristics. I thought that the world building was easy to follow and I could easily immerse myself into this world. After reading the blurb I kept wondering when she was going to go on the journey to find Excalibur and it doesn't happen until around the 45% mark. The story is a bit slow at times but starts to pick up once they begin their journey to find Excalibur. The John Wick style Inn was a fun concept that I enjoyed reading about. There are a lot of similarities to this and FBAA and I would have liked to have it be a little more different, but I'm hoping book two will have the story turn into something of its own. Overall I enjoyed reading this story and I'm looking forward to reading book two especially after that ending.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2023

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