SKU: 24831245009

876377 Head Decarbonizing Gasket Set for Volvo Penta MD1B MD2B MD3B AQD2B D1 D2 D3 | JLM Marine

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Description

876377 Head Decarbonizing Gasket Set for Volvo Penta MD1B MD2B MD3B AQD2B D1 D2 D3 | JLM MarineHead Decarbonizing Gasket Set Fits Volvo Penta MD1B, MD2B, MD3B, AQD2B, D1, D2, D3 Diesel Engines This Head Decarbonizing Gasket Set is designed for Volvo Penta diesel engine models including MD1B, MD2B, MD3B, AQD2B, D1, D2, and D3. Engineered to restore compression and seal integrity during decarbonization service, this gasket set ensures reliable performance and proper cylinder head sealing. This aftermarket replacement directly replaces Volvo Penta

Head Decarbonizing Gasket Set – Fits Volvo Penta MD1B, MD2B, MD3B, AQD2B, D1, D2, D3 Diesel Engines

This Head Decarbonizing Gasket Set is designed for Volvo Penta diesel engine models including MD1B, MD2B, MD3B, AQD2B, D1, D2, and D3. Engineered to restore compression and seal integrity during decarbonization service, this gasket set ensures reliable performance and proper cylinder head sealing.

This aftermarket replacement directly replaces Volvo Penta OEM part numbers 876377, 876375, 876374, 875504, 875502, and 875500, providing a cost-effective solution for routine maintenance and overhaul procedures.

  • Essential component for cylinder head decarbonization service
  • Designed specifically for Volvo Penta marine diesel engines
  • Multiple kits may be required depending on engine model

Part Number Cross-Reference

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

Brand Part Number
Volvo Penta 876377
Volvo Penta 876375
Volvo Penta 876374
Volvo Penta 875504
Volvo Penta 875502
Volvo Penta 875500

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Notes
Volvo Penta MD1B 1 Kit Required
Volvo Penta AQD2B 2 Kits Required
Volvo Penta MD2B 2 Kits Required
Volvo Penta MD3B 3 Kits Required
Volvo Penta D1
Volvo Penta D2
Volvo Penta D3

Technical Specifications

Specification Value
OEM Part Number 876377
Application Cylinder Head Decarbonization
Engine Type Diesel

Package Contents

Each package contains the following components:

  • 1 × Head Decarbonizing Gasket Set

Important: Depending on your engine model, multiple kits may be required. Refer to the compatibility table above to determine the quantity needed for your specific engine.

Installation Guide

  1. Preparation: Ensure the engine is cool and disconnect the battery. Drain coolant and remove any components obstructing access to the cylinder head.
  2. Remove Cylinder Head: Unbolt and carefully lift the cylinder head from the engine block, noting the position of all fasteners and components.
  3. Clean Surfaces: Thoroughly clean all carbon deposits from the cylinder head, piston tops, and valves using appropriate decarbonizing tools and solvents. Ensure all mating surfaces are completely clean and free of old gasket material.
  4. Inspect Components: Check the cylinder head for warping or cracks and inspect valves, seats, and guides for wear.
  5. Install New Gasket: Position the new head gasket from this decarbonizing set onto the engine block, aligning all bolt holes and passages correctly.
  6. Reinstall Cylinder Head: Carefully lower the cylinder head onto the new gasket, ensuring proper alignment.
  7. Torque Head Bolts: Tighten cylinder head bolts in the proper sequence and to the manufacturer's specified torque values, typically in multiple stages.
  8. Reassemble Components: Reinstall all removed components including manifolds, fuel lines, and cooling system connections using new gaskets from the set as applicable.
  9. Refill Fluids: Refill the cooling system with fresh coolant and check all fluid levels.
  10. Test for Leaks: Reconnect the battery and start the engine. Monitor for any coolant, oil, or compression leaks around the cylinder head.
  11. Final Checks: Allow the engine to reach operating temperature and recheck all connections and torque specifications after the initial heat cycle.

Troubleshooting & FAQ

Q: How do I know how many kits I need for my engine?
A: The number of kits required depends on your specific engine model. MD1B requires 1 kit, AQD2B and MD2B require 2 kits, and MD3B requires 3 kits. Always refer to the compatibility table above to confirm the correct quantity for your engine.

Q: Can I reuse the old gaskets during decarbonization?
A: No, gaskets are single-use components. Always replace gaskets with new ones from this set to ensure proper sealing and prevent leaks or compression loss.

Q: How often should I perform decarbonization service on my Volvo Penta diesel?
A: Decarbonization intervals vary based on operating conditions, fuel quality, and engine load. Consult your engine manual for recommended service intervals, typically every 500-1000 operating hours or when you notice performance degradation.

Q: What are signs that my engine needs decarbonization?
A: Common symptoms include loss of power, excessive smoke, rough idle, increased fuel consumption, or difficulty starting. Carbon buildup can also cause valve problems and reduced compression.

Q: Is this an OEM part or 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:
  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: 24831245009

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Michael E. Fleming
New York, US
★★★★★ 4
Good product. Real wood. Sturdy wall anchor.
Size: 16.5 Inch, Color: Black
4.5 stars. It's a great product. The pictures made me wonder if this was wood or plastic, but it is definitely wood. It is very attractive and fairly easy to assemble. I feel like the harnesses for the wall don't fit the wood well enough, so you can get different distances from the wall, and one of my shelves is half a centimeter below the others, even though I lined it up the same. But they are sturdy shelves and very pretty. My only real complaint is the screw anchors for the walls. They are SERIOUS. I doubt these will ever fall out of the wall, for real. The only problem is, they eat the wall as you are putting them in. If I ever decide to move these, I will have to do some serious dry wall repair.
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Reviewed in the United States on May 4, 2026
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Anthony Motley
Bozeman, US
★★★★★ 5
Easy to install
Size: 16.5 Inch, Color: White
I bought these for my step daughter for her birthday. I installed them on about 45 minutes. Theyre small and decorative. They're nice to store light weight knick knacks on.
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Reviewed in the United States on May 16, 2026
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Brianna McMichael
Cuba, US
★★★★★ 5
Simple, sturdy, and looks great in the room
Size: 16.5 Inch, Color: Rustic Brown
I bought this farmhouse shelf for our bedroom because I needed extra storage that would not make the space feel cramped. After using it for a few weeks, I can say it fits the room really well and does exactly what I hoped it would. The rustic brown color is warm without looking orange or overly dark. It has that farmhouse style but still feels clean and modern. It blends nicely with neutral furniture and does not look cheap or overly distressed. Assembly took me about thirty minutes. The instructions were easy to follow and all the hardware was included. Once everything was tightened, the shelf felt stable and did not wobble. I made sure to assemble it on a flat surface and tighten the screws evenly, which helped keep it level. Right now I am using it for books, a small plant, framed photos, and a storage basket. It handles normal household items without any sagging. I would not overload it with very heavy textbooks on every shelf, but for everyday use in a bedroom or living room, it feels solid. One thing I really like is the size. It gives you good vertical storage without taking up too much floor space. It works especially well in smaller rooms or apartments where you want storage but do not want bulky furniture. If using it in a bathroom, I would just be mindful of humidity over time since the shelves appear to be engineered wood with a laminate finish. For towels and lightweight storage bins, it should work well. Overall, this is a practical and good looking shelf. It is not high end furniture, but it does not feel flimsy either. For the price, I would buy it again.
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Reviewed in the United States on February 25, 2026
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OrangeSlice3
Birmingham, US
★★★★★ 5
Great for the price you pay
Size: 16.5 Inch, Color: Rustic Brown, Size: 16.5 Inch, Color: Rustic Brown
Great shelves for the price you pay. They look good and seem to have good stability so far; we’ll see if anything falls on heads. I put a 6 pack of each up in my son’s rooms and they have all kinds of stuff from katanas to books to knick knacks on them. The shelves aren’t finished so they can leave slivers and might be harder to clean with just a cloth. They came with 6 pieces of wood, not pre-drilled or with any marks for holes, a pack of pretty tough brackets, and all mounting hardware. We used a level, hammer, stud finder, tape measure, the provided wall anchors, long and short screws, pencil, 13/64 drill bit, Phillips head bit, and drill. These helped save space and get rid of some of their clutter.
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Reviewed in the United States on March 10, 2026
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Kailyn
Houston, US
★★★★★ 3
Not the best.
Size: 16.5 Inch, Color: Rustic Brown, Size: 16.5 Inch, Color: Rustic Brown
The wood style is burned wood without any sealant. I would have given a better rating but some of the shelving was bowed which makes it not look as appealing. Pretty easy to install. Definitely will need your impact. I can’t imagine trying to do that with a hand held screwdriver. With the wood being bent the quality isn’t what I would want it to be. It can hold a decent amount of weight. But certainly not made for books. Even with wall anchors. It gives you the option to hang it as shown in its picture or the other way where the supports are flipped.
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Reviewed in the United States on March 25, 2026

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