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Description
Camshaft Gear – Fits Volvo Penta 3.0L–5.7L Engines 117–150 HPCamshaft Gear Fits Volvo Penta 3. 0L5. 7L Engines This replacement camshaft gear is engineered for Volvo Penta 4 cylinder 3. 0L engines, covering models from 1979 to 1993 with horsepower ratings between 117 and 150 HP. It ensures precise valve timing and reliable engine performance, serving as a direct fit component for a range of popular sterndrive engines. This gear directly replaces Volvo Penta OEM part numbers 856239, 855473, and 831972.
Camshaft Gear – Fits Volvo Penta 3.0L–5.7L Engines
This replacement camshaft gear is engineered for Volvo Penta 4-cylinder 3.0L engines, covering models from 1979 to 1993 with horsepower ratings between 117 and 150 HP. It ensures precise valve timing and reliable engine performance, serving as a direct-fit component for a range of popular sterndrive engines.
This gear directly replaces Volvo Penta OEM part numbers 856239, 855473, and 831972.
- Installation Method: Direct OEM replacement
- Material: Constructed from high-strength Forged Steel for durability
- Replaces multiple legacy Volvo Penta part numbers for broad compatibility
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Volvo Penta | 856239 |
| Volvo Penta | 855473 |
| Volvo Penta | 831972 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | AQ125A | 117 HP | 4-Stroke | 1983–1984 | 856239 | |
| Volvo Penta | AQ131 A, B, C, D | 120 HP | 4-Stroke | 1985–1993 | 856239 | |
| Volvo Penta | AQ145B | 138–139 HP | 4-Stroke | 1979–1988 | 856239 | |
| Volvo Penta | AQ151 A, B, C | 146–150 HP | 4-Stroke | 1989–1993 | 856239 | |
| Volvo Penta | 230 | 120 HP | 4-Stroke | 1989–1993 | 856239 | |
| Volvo Penta | 250 | 146 HP | 4-Stroke | 1989–1993 | 856239 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Camshaft Gear / Timing Gear |
| Installation | Direct OEM replacement |
| Housing Material | Metal (Forged Steel) |
| Dimensions | 5.5 cm (height) × 15.5 cm (width) × 18.0 cm (length) |
| Weight | 0.51 kg (1.12 lbs) |
| Warranty | 1-year against manufacturing defects |
Explosion Diagram
Installation Guide
- Safety First: Disconnect the negative battery terminal to prevent electrical hazards.
- Drain Fluids: Drain the engine coolant and oil completely.
- Access Components: Remove the valve cover, timing belt cover, and any accessories blocking access.
- Remove Belt: Carefully release tension from the timing belt and remove it.
- Align Marks: Rotate the engine manually to align the timing marks on the crankshaft and camshaft pulleys.
- Remove Old Gear: Loosen the bolt securing the camshaft gear and remove the old gear from the camshaft.
- Install New Gear: Place the new camshaft gear onto the camshaft, ensuring the timing marks remain perfectly aligned. Tighten the bolt to the manufacturer's torque specification.
- Reinstall Belt: Reinstall the timing belt and set the correct tension using a tensioner tool.
- Reassembly: Reinstall the timing cover, valve cover, and any other components that were removed.
- Refill and Test: Refill the engine with fresh coolant and oil. Reconnect the battery, start the engine, and listen for abnormal noises and check for leaks.
Troubleshooting & FAQ
Q: How do I confirm this camshaft gear fits my Volvo Penta engine?
A: Check that your engine model (e.g., AQ131A, 230) and year of manufacture (1979–1993) are listed in our compatibility table. You should also verify that your existing part number is one of the direct replacements: 856239, 855473, or 831972.
Q: What are the signs that my camshaft gear needs replacement?
A: Common symptoms of a failing camshaft gear include a rattling or ticking noise from the engine bay, loss of power, engine misfires, rough idling, or a Check Engine Light related to camshaft timing. A visual inspection may reveal worn, chipped, or broken teeth on the gear.
Q: What is this gear made of?
A: This gear is manufactured from high-strength forged steel, designed to meet or exceed original equipment specifications for durability and precise valve timing.
Q: OEM vs. Aftermarket?
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:
- 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
4.5 ★★★★★
Based on 2303 reviews
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Product Reviews
★★★★★ 5
Best
One of the best books on Love & happy relationships, along with Love by Leo Buscaglia, The five love languages, Men are from Mars, Women are from Venus, THe Romance Factor, The Practical Guide to Romantic Love by Callahan,
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Reviewed in the United States on April 1, 2026
★★★★★ 5
The most impactful book on lasting love & relationships
Profound - highly recommend this book to EVERYBODY who has or wants to have a significant other. The different love languages really resonates with me and could save many relationships. This book initially a gift to me from my childhood best friend. It practically saved her marriage. I have since read it and purchased it for other loved ones.
Dr. Chapman explains how important it is for couples to understand how each other and themselves both give and receive love. It is possible for couples to truly love each other, but to truly feel unloved because they don’t think the same about giving and receiving love. Everybody generally has their own primary love languages for receiving love and giving love. It may be the same for giving/receiving, and it may be different. If a husband does not meet the primary love language of his wife, she might not sense his true feelings and start to be unsatisfied with their relationship.
Understanding your spouse’s love language and acting accordingly will fill their “Love Tank”. The “Love Tank” analogy is a great metaphor for describing how loved someone feels. Meeting people’s primary love language consistently will fill up their love tank and help them feel loved like they need. But if a spouse fails to meet this primary love language, it might leave their “Love Tank” empty, which leads to feelings of being unloved and issues in relationships. Secondary languages are also important, so it's critical to reflect and understand your own priorities and that of your spouses.
The five love languages are:
1. Words of Affirmation: If this is your love language, you feel most cared for when your partner is open and expressive in telling you how wonderful they think you are, how much they appreciate you, etc.
2. Acts of Service: If your partner offering to watch the kids so you can go to the gym (or relieving you of some other task) gets your heart going, then this is your love language.
3. Affection: This love language is just as it sounds. A warm hug, a kiss, touch, and sexual intimacy make you feel most loved when this is your love language.
4. Quality Time: This love language is about being together, fully present and engaged in the activity at hand, no matter how trivial.
5. Gifts: Your partner taking the time to give you a gift can make you feel appreciated.
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Reviewed in the United States on July 7, 2014
★★★★★ 5
Helped my marriage
First I must say I REALLY enjoyed this book. Me and my husband both. I heard about this book on Moody radio and decided to give it a try because I wanted a better marriage with less fighting and disagreements. I am soo happy I did. This book was right on point for me and my husband. I read it first, then got the audio version for him to listen to, which he did 4 times. It really gave me great insight into my self and my husband. It helped me to understand how to best express my love to my husband in the way he wants and understands most, and he was able to do the same for me. This hasn't been a cure all, but it helps to understand each other much more than we ever have before and we have been together for 18 years.
The book is very well written, its an easy read and you should are able to get through it quickly. The change comes with investing time to apply the principles you have learned. I personally had to go through the material more than once to really let it sink it. This has been a small financial but HUGE emotional investment in one of my most important relationships. The knowledge in this book has really help my husband (his words) to better navigate personal relationships, not just with me, as it is intended, but also with his sister, friends and even stranger. I have found I can use this information is so many interactions and encounters with people throughout the day, it really opens you up to a new perspective. Gary Chapman did a great job explaining the details of the love languages. Anytime in conversation with someone complaining of relationship or even just communication issues I make sure to recommend this book. Can't say enough good things about it and we plan on checking out his other books as well.
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Reviewed in the United States on June 12, 2016
★★★★★ 5
This saved my marriage
Really, it did. Simple and profound, a quick read. We all want to express love in the form that we want it for ourselves which is a recipe for disaster and completely arbitrary for your partner however well meaning that is. My wife kept saying that she didn't feel loved in spite of my significant attempts.... Now I know why. For instance saying "I love you" had absolutely no impact on her because her "words of affirmation" category is zero (absent). But she has a high need for physical touch (hooray for me because that is a big match). That insight lead to further research into tantric sex and now I'm having the best sex of my life and more frequently than when we were younger (amazing on both counts). The key was finally understanding what she needed so that she could feel "filled up" In the customized way that she needed.
The examples are a bit dated, but still conceptually valid. For her the "acts of service" wasn't washing the dishes, but acts of targeted thoughtfulness that took some time to properly distinguish. I took it on to do something appropriately thoughtful for her every single day since she tested high in that category.... That was a grand slam home run over time.
We also took a course in the enneagram (highly insightful personality typing) about the same time that dovetailed nicely. She was a type 2 that wants to make everyone around her happy, everyone except herself of course; she gives and gives until she is depleted and then becomes resentful. For her to be able to state what she wants and needs remains a huge struggle for her but she expects me to just know... A paradox for sure, but now I understand that by keeping her "filled up" overcomes that sense of depletion. (The enneagram is also highly recommended to know yourself and those around you). She takes care of those round her and she needed someone to do that for her; a huge insight.
The punch line is that I now get back what I need with a new passion that feels more like an ongoing honeymoon. Priceless. ;-)
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Reviewed in the United States on January 11, 2014
★★★★★ 4
As of July 2012 - 92% 4 & 5 star reviews
As of the time I am writing this review 368 out of 398 reviewers gave this book a 4 or 5 star rating - that's 92% "I liked it" and "I loved it" ratings. With these many positive reviews there are some critical reviews as well that are worth reading to get a balanced overall review - there may actually be more (and likely are more) than 5 love languages or categories. The author has a significant amount of knowledge and experience regarding married couples and it is certainly worth considering his input. What will make the information in this book the most beneficial is incorporating it with personal experience, and this subject will likely be a "work in progress" project with a focus on getting better everyday to result in a lasting, happy, and fulfilling marital arrangement.
My favorite review is "Learning to Speak, December 23, 2010" where the reviewer's review could have been a superb foreword for this book. May I suggest reading it as in my opinion it is brief, clear, and simple. If you have time consider reading the other reviews and comments too.
Of course, some may not agree or totally agree with this book's author; however, the subject of marriage is simple, yet complexed - and even compounding at times.
In my opinion this is one of the better books on this subject. There is some good material here making it worth considering reading it.
This book did stimulate my thinking on the different viewpoints in marriage and if you'd like to read my comments on this marriage subject contine, if not please feel free to move on. I am just hoping that some of these thoughts may help some considering marriage or who are already married.
Some believe that men and women basically use different parts of their brains. Often heard are: "The left brain thinks, the right brain feels." "The left brain analyzes, the right brain intuits." "The left brain is logical, the right brain is emotional." Likely, our thinking, feeling, and loving are more complex than these simple statements; yet, at least on occasion (likely more often) men and women think and feel differently and express themselves differently - the author of this book identifies, categorizes, and classifies love into five languages. I would add one additional language, which is the ability to sincerely and promptly say "I'm sorry" from one's heart. From my 45+ years of marriage and from what I have learned from many others, a successful, lasting, and happy marriage involves two great forgivers and apologizers. In my three and a half decades of managing people I have found that those who never or almost never say "I'm sorry" have difficulties with their working and personal relationships.
A husband and a wife differ to varying degrees about how they both think and feel about things, and this is in harmony with how the Creator said regarding Adam that He was going to make a helper for him, as a complement of him (not an identical twin of him - she was made different in a good way). A complement completes, perhaps making something just right. A husband and wife will benefit from loving each other, especially as the other person wants and needs to be loved.
Couple this with deep respect and you hold the two keys to a successful, lasting, and happy marriage and family life - Love and Respect.
Hopefully adding this thought will help your loving and respectful marriage grow more each and every day: "I love you more today than yesterday, but only half as much as tomorrow."
And one additional thought: "It is more beneficial for me to be respectful and loving in all that I do, than for me to be loved (something I very much want)."
Every marriage has the potential to be successful, lasting, and happy, especially using the two keys of "Love" and "Respect." Your marriage can be a most precious, valuable, and wonderful gift by using these two keys with sincerity and heartfelt caring; and, never let pride, the childish silent treatment, or other unloving disrespectful traits mar your treasured marriage!
A good "PRIDE" antidote expressed before the end of the day: "I'm sorry - I was mistaken - How can I make it up to you? - I'll do my best to be better - Will you please forgive me?"
A good "CHILDISH SILENT TREATMENT" antidote as soon as possible: Rescue the loving, caring, and respect adult within you. "Whining" and "I won't talk to you" are childish - they rarely worked in childhood and have no place among true adults. "Scolding" and "Lecturing" is easily blocked out. The best communications are loving, caring, and respectful adult expressions coupled with a big dose of attentive listening and understanding.
In ballroom dancing it has been said that "it takes two to tango," and "it takes one to lead." Many have found a successful, permanent, and happy marriage includes three - the loving husband, the respectful wife, and the Creator and Author of marriage (who perfectly knows what's best).
A good question to ask yourself at the beginning of each day: "What will I do today that shows I both love and respect my spouse?" TIP: While certainly one positive act or action daily is a good start, many are even better and will bring more benefits.
ADDITIONAL BENEFICIAL READING: "One Minute for Myself [Yourself]: How to Manage Your Most Valuable Asset" by Spencer Johnson, MD - while it is good to have a great relationship with your spouse; it is essential to have a good relationship with yourself, especially if your goal is to love your neighbor as yourself. Keep in mind if this is one of your goals that your closest neighbor is your spouse. Good relationships with ourselves and others I believe is what our true success in life is all about. My thought is that one needs a good relationship with oneself first in order to have good relationships with others - and it is wise to pursue "self-respect" by being respectful of yourself and all others. I like the thought of "self-respect" rather than "self-esteem" because it is easily possible to think too much of oneself; better to just focus on being respectful, caring, loving, and having proper self-respect.
ADDENDUM: One of best ways to tell your spouse "I Love You" is to say "I love you just the way you are." The principle here is if you want to be accepted in any relationship you should give your acceptance first. How many of us really want someone to relentlessly badger us to change this or change that about ourselves. Change in itself can be difficult, but that is another subject to consider.
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Reviewed in the United States on July 11, 2012