876356 Head Gasket Set Decarbonizing Kit for Volvo Penta AQ115A AQ130A AQ130C MB20B | JLM Marine

Head Gasket Set Decarbonizing Kit for Volvo Penta AQ115A AQ130A AQ130C MB20B

This Head Gasket Set Decarbonizing Kit is engineered for Volvo Penta petrol marine engines, including the AQ115A, AQ130A, AQ130C, and MB20B models. Designed as a direct replacement, this kit provides everything needed for comprehensive cylinder head maintenance and decarbonization work.

This kit directly replaces Volvo Penta OEM part numbers 876356 and 875401, as well as Crom Marine 121041, ensuring broad compatibility with your existing service procedures.

• Complete gasket set for efficient decarbonizing and head service
• Suitable for Volvo Penta petrol marine engines
• Aftermarket replacement built to OEM specifications

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

This package contains the following components:

• 1 × Head Gasket Decarbonizing Kit

Installation Guide

1. Disconnect the battery and allow the engine to cool completely before beginning work.
2. Remove all components obstructing access to the cylinder head, including manifolds, fuel lines, and ignition components.
3. Carefully unbolt and lift the cylinder head from the engine block, taking care not to damage mating surfaces.
4. Remove carbon buildup from the cylinder head, valves, and piston tops using appropriate decarbonizing tools and solvents.
5. Thoroughly clean all gasket mating surfaces on both the head and block, ensuring they are free of old gasket material and debris.
6. Install the new head gasket from this kit, aligning it precisely with dowel pins and bolt holes.
7. Carefully position the cylinder head back onto the engine block.
8. Install and torque the head bolts to manufacturer specifications in the correct sequence (consult your engine manual).
9. Reinstall all removed components including manifolds, fuel lines, and ignition parts.
10. Reconnect the battery and check all connections before starting the engine.
11. Start the engine and allow it to reach operating temperature while checking for leaks.
12. Perform a final inspection and retorque head bolts if specified by the manufacturer.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Volvo Penta engine?
A: Check the Compatible Engine Models table above for your specific model number (AQ115A, AQ130A, AQ130C, or MB20B). Also verify that your original part number matches 876356 or 875401.

Q: What is included in the decarbonizing kit?
A: This kit includes a complete head gasket set with all necessary gaskets and seals required for cylinder head removal and decarbonization service on the listed Volvo Penta models.

Q: When should I replace the head gasket or perform decarbonization?
A: Replace the head gasket if you notice coolant leaks, overheating, white exhaust smoke, or compression loss. Decarbonization is typically recommended during major service intervals or when experiencing rough running or power loss.

Q: What are the signs that my head gasket is failing?
A: Common symptoms include coolant in the oil (milky appearance), overheating, loss of coolant without visible leaks, white smoke from exhaust, rough idling, or loss of 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.