876341 Decarbonizing Gasket Kit for Volvo Penta MD5A MD5B MD5C | JLM Marine

Decarbonizing Gasket Kit for Volvo Penta MD5A MD5B MD5C | JLM Marine

This Decarbonizing Gasket Kit is designed for Volvo Penta MD5A, MD5B, and MD5C diesel marine engines. It provides a complete gasket solution for decarbonizing maintenance procedures, ensuring proper sealing and engine performance during routine service.

Direct Replacements: Volvo Penta 876341, 875561 | Crom Marine 121050 | Orbitrade ORB21561

• Complete gasket kit for decarbonizing service on MD5-series engines
• Replaces multiple OEM and aftermarket part numbers for broad compatibility
• Essential for maintaining engine efficiency and preventing exhaust leaks

Part Number Cross-Reference

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

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Decarbonizing Gasket Kit

Installation Guide

1. Disconnect the battery and allow the engine to cool completely before beginning work.
2. Remove the exhaust manifold and cylinder head cover according to your engine's service manual.
3. Clean all carbon deposits from the combustion chamber, valves, and piston tops using appropriate cleaning tools.
4. Remove old gasket material from all mating surfaces using a gasket scraper, ensuring surfaces are clean and flat.
5. Inspect all surfaces for cracks, warping, or damage that may require machining or replacement.
6. Install the new gaskets from the kit in the correct positions, following the service manual's torque sequence.
7. Apply a thin, even layer of gasket sealant only if specified by the manufacturer for certain surfaces.
8. Reinstall the cylinder head cover and exhaust manifold, torquing bolts to factory specifications in the proper sequence.
9. Reconnect all hoses, wiring, and components that were removed during disassembly.
10. Reconnect the battery and start the engine, checking for any exhaust leaks or unusual noises.
11. Allow the engine to reach operating temperature and inspect all gasket areas for leaks.
12. Re-torque cylinder head bolts after the first few hours of operation if recommended by the manufacturer.

Troubleshooting & FAQ

Q: How do I confirm this gasket kit fits my Volvo Penta engine?
A: Check the compatible engine models table above to verify your engine model (MD5A, MD5B, or MD5C). You can also cross-reference the OEM part numbers 876341 or 875561 with your engine's parts manual.

Q: When should I replace the decarbonizing gaskets?
A: Replace these gaskets during every decarbonizing service or whenever you remove the cylinder head or exhaust components. Reusing old gaskets can lead to leaks and reduced engine performance.

Q: Can I reuse the old gaskets if they look undamaged?
A: No, gaskets are designed for single-use only. Even if they appear intact, they compress during installation and will not seal properly if reused, potentially causing exhaust leaks or coolant leaks.

Q: What are the signs that my decarbonizing gaskets need replacement?
A: Common symptoms include exhaust leaks, visible soot around gasket areas, loss of engine power, increased fuel consumption, or coolant mixing with oil. If you're performing decarbonizing maintenance, always replace gaskets as preventive maintenance.

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.