SKU: 49569352504

876431 Head Decarbonizing Gasket Kit for Volvo Penta MD7A MD7B | JLM Marine

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Description

876431 Head Decarbonizing Gasket Kit for Volvo Penta MD7A MD7B | JLM MarineHead Decarbonizing Gasket Kit for Volvo Penta MD7A MD7B Marine Engine 876431 This Head Decarbonizing Gasket Kit is specifically designed for Volvo Penta MD7A and MD7B marine diesel engines (S N: 35145 and later). It provides all the essential gaskets needed for head decarbonization and maintenance procedures, ensuring proper sealing and engine performance. This kit directly replaces Volvo Penta 876431, 875613, and 876430, as well as aftermarket

Head Decarbonizing Gasket Kit for Volvo Penta MD7A MD7B Marine Engine – 876431

This Head Decarbonizing Gasket Kit is specifically designed for Volvo Penta MD7A and MD7B marine diesel engines (S/N: 35145 and later). It provides all the essential gaskets needed for head decarbonization and maintenance procedures, ensuring proper sealing and engine performance.

This kit directly replaces Volvo Penta 876431, 875613, and 876430, as well as aftermarket equivalents from Crom Marine (121047, 121046) and Orbitrade (21431, 21430), offering broad cross-compatibility for your service needs.

  • Complete gasket kit for head decarbonization procedures
  • Fits Volvo Penta MD7A and MD7B marine diesel engines
  • Replaces multiple OEM and aftermarket part numbers

Part Number Cross-Reference

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

Brand Part Number
Volvo Penta 876431
Volvo Penta 875613
Volvo Penta 876430
Crom Marine 121047
Crom Marine 121046
Orbitrade 21431
Orbitrade 21430

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Notes
Volvo Penta MD7A S/N: 35145 and later
Volvo Penta MD7B S/N: 35145 and later

Technical Specifications

Specification Value
OEM Number 876431
Product Type Head Decarbonizing Gasket Kit
Application Marine Diesel Engine
Compatible Engines Volvo Penta MD7A, MD7B

Package Contents

This package includes:

  • 1 × Head Decarbonizing Gasket Kit (complete set)

Installation Guide

  1. Ensure the engine is completely cool and disconnect the battery before beginning any work.
  2. Remove the cylinder head cover and set aside all fasteners in an organized manner.
  3. Carefully remove the old gaskets from all mating surfaces, ensuring no remnants remain.
  4. Clean all sealing surfaces thoroughly with appropriate solvent and a non-abrasive scraper. Allow surfaces to dry completely.
  5. Inspect the cylinder head and block for cracks, warping, or damage before proceeding.
  6. Position the new gaskets from the kit onto the cleaned surfaces, following the correct orientation.
  7. Reinstall the cylinder head or components, ensuring proper alignment with dowel pins if present.
  8. Torque all fasteners to the manufacturer's specifications in the correct sequence (consult your service manual).
  9. Reinstall the cylinder head cover with the new gasket, tightening fasteners evenly.
  10. Reconnect the battery and perform a visual inspection for proper gasket seating.
  11. Start the engine and allow it to reach operating temperature while monitoring for leaks.
  12. After initial run-in, re-check all fastener torque values as recommended by the manufacturer.

Troubleshooting & FAQ

Q: How do I confirm this gasket kit fits my Volvo Penta engine?
A: Verify that your engine is a MD7A or MD7B model with serial number 35145 or later. Cross-reference your existing part number (876431, 875613, or 876430) with the numbers listed in the Part Number Cross-Reference table above.

Q: What's included in this head decarbonizing gasket kit?
A: This is a complete head decarbonizing gasket kit that includes all necessary gaskets required for head decarbonization procedures on MD7A and MD7B engines. The kit provides all sealing components needed for proper reassembly.

Q: When should I replace the head gaskets on my Volvo Penta MD7?
A: Replace head gaskets during decarbonization services, when performing cylinder head removal for any reason, or if you notice signs of gasket failure such as coolant leaks, oil leaks, overheating, or loss of compression.

Q: Can I reuse the old gaskets if they look intact?
A: No, gaskets should never be reused. Once compressed and torqued, gaskets lose their sealing ability and may cause leaks or engine damage if reinstalled.

Q: Is this an OEM or aftermarket gasket kit?
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: 49569352504

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4.4 ★★★★★
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KHG
Charlottesville, US
★★★★★ 4
Great little toaster oven!
Size: Medium Capacity
Great little oven! Heats up quickly, gets very hot very fast. Unit is small so don’t plan on preparing large amounts of food. This is a very lightweight oven that takes little counter space. Do be careful NOT to touch while in use as it very extremely hot!
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Reviewed in the United States on May 27, 2026
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Amazon Customer
Louisville, US
★★★★★ 5
Love da' Mini Oven
Size: Medium Capacity
I LOVE this Mini Oven thingy. And, for a while, I had this reluctancy to even purchase one of these for some reason. But now that I have one, convinced by my wonderful current roommate that this would absolutely be a necessity, I gave in and bought one! What I really dig about this mini oven is that it lights immediately, it's fast, easy to use, easy to clean and efficient to bake, toast, broil!
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Reviewed in the United States on April 26, 2026
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Amazon Customer
Dallas, US
★★★★★ 5
Best toaster oven/air fryer
Size: Medium Capacity
Works great, love it.
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Reviewed in the United States on June 8, 2026
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Blossom
Fort Morgan, US
★★★★★ 3
Cheap but must babysit your food (TL;DR: spend a bit more for a better one)
Size: Medium Capacity
I have the “Medium” size of this and have now had it for a year and a half. It basically does what a toaster/convection oven is supposed to do, but I do keep encountering issues with burning food. There is very little space between the coils and the rack so even thin things like slices of bread are very close to the heating elements. As there is no way to only use the lower coil, any toasting or cooking requires preheating so the coils aren’t all at full capacity for 5+ minutes. If you essentially preheat it, you can then toast or cook, but keep a close eye on it as even with preheating, you may need to turn and flip what you’re toasting every 30-90 seconds or the section under the coils will burn while the rest remains pale. When you’re making toast, it’s a lot of effort and practice to get your bagel or toast just right. As there is very little space and the elements are intense, even if you force the rack below where it’s meant to go (you can kind of wedge it between the guide and the bottom heating element cover), you can only fit things that are about 2-3” tall and those may still be a challenge. If you want to put a fairly tall piece of frozen lasagne in, for instance, the top will burn to a crisp before the center is even thawed. I’ve never had issues like these with previous toaster ovens, even small ones. I think they really did everyone a disservice by not making it about an inch or two taller inside. I also find it extremely challenging to clean. I’ve had many toaster ovens over the years and none have stained and discolored this easily. It’s an issue partly because of the small size inside, so you can’t reach everywhere, but even the glass door has gotten stains I cannot remove despite trying everything from lemon juice and baking soda to Ajax and Bar Keeper’s Friend. Overall, can you find ways to make it work as long as what you’re cooking is short? Yes. Is it convenient or ideal or a great toaster or toaster/convection oven? No. Update: About a month after I reviewed this, it caught on fire. I had about a teaspoon of oil on a baking sheet and when I flipped the piece of chicken halfway through time, a tiny bit splattered and because the top coils are right there, it burst into flames. I know enough to close the door and unplug immediately so it burned itself out. Now, the fact that oil splattered a bit is my carelessness, but as I said, it was only a teaspoon of oil so it’s not like it was being deep fried, and I have done the same thing with every toaster oven I’ve owned and never had that happen, because the coils shouldn’t be so darned close that they touch the food. So that was it for me. I spent about $25 more for a Hamilton Beach Easy Reach that I LOVE. It has enough space, doesn’t take up much counter space, and is a breeze to keep clean. I wish I had just spent a little more the first time and gone with what I have now. Save yourself my mistake and a toaster oven ending up in a landfill and spend the extra $$ to get one that works better and is safer. My parents have the older model of what I now own and have had it for over a decade, using it at least once a day, often twice a day.
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Reviewed in the United States on June 7, 2025
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LP
Boise, US
★★★★★ 5
Works well.
Size: Medium Capacity
Air fryer and toaster work very well (Thats all I tried so far.). About 2 medium potatoes sliced into wedges fit in tray. The top and bottom get very hot. Will burn if you touch them.
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Reviewed in the United States on April 2, 2026

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