1378879 Exhaust Intake Manifold Gasket for Volvo Penta AQ120B AQ125A AQ125B AQ131A AQ131B AQ131C AQ131D AQ140A AQ145A AQ151A AQ151B AQ151C | JLM Marine

Exhaust Intake Manifold Gasket – Fits Volvo Penta AQ120B, AQ125A, AQ125B, AQ131A, AQ131B, AQ131C, AQ131D, AQ140A, AQ145A, AQ151A, AQ151B, AQ151C | JLM Marine

This exhaust intake manifold gasket is designed for Volvo Penta AQ-series marine engines, including models AQ120B, AQ125A, AQ125B, AQ131A, AQ131B, AQ131C, AQ131D, AQ140A, AQ145A, AQ151A, AQ151B, and AQ151C. Engineered to provide a reliable seal between the exhaust and intake manifolds, this gasket ensures optimal engine performance and prevents exhaust leaks.

This gasket directly replaces OEM part numbers 1378879, 1266796, and 463225, offering seamless compatibility with your original equipment.

• Precision-engineered for Volvo Penta AQ-series marine engines
• Direct replacement for multiple OEM part numbers
• Designed to withstand high temperatures and pressures

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

Your package includes:

• 1 × Exhaust Intake Manifold Gasket

Installation Guide

1. Disconnect the battery and allow the engine to cool completely before starting work.
2. Remove any components obstructing access to the exhaust and intake manifolds.
3. Carefully disconnect the exhaust piping and intake connections from the manifold.
4. Remove the fasteners securing the manifold to the engine block and lift the manifold away.
5. Thoroughly clean all mating surfaces on both the engine block and manifold, removing old gasket material and residue.
6. Inspect the manifold for cracks or warping; replace if damaged.
7. Position the new gasket onto the engine block, ensuring proper alignment with all bolt holes and ports.
8. Carefully place the manifold back onto the engine, aligning it with the gasket.
9. Install and hand-tighten all fasteners, then torque them to manufacturer specifications in a cross pattern.
10. Reconnect the exhaust piping and intake connections, ensuring all clamps are secure.
11. Reinstall any components removed during disassembly.
12. Reconnect the battery, start the engine, and check for leaks around the gasket area.

Troubleshooting & FAQ

Q: How do I confirm this gasket fits my Volvo Penta engine?
A: Check the compatibility table above to verify your engine model is listed (AQ120B through AQ151C series). Cross-reference the OEM part numbers 1378879, 1266796, or 463225 with your engine's service manual to ensure a proper match.

Q: What are the signs that my manifold gasket needs replacement?
A: Common symptoms include visible exhaust leaks at the manifold connection, reduced engine performance, unusual hissing or popping noises from the engine, or coolant/water leaks near the manifold area. If you notice any of these issues, inspect and replace the gasket as needed.

Q: How often should I replace the exhaust intake manifold gasket?
A: Replace the gasket whenever the manifold is removed for service or repair. Additionally, inspect it during routine engine maintenance and replace if you notice deterioration, leaks, or compression loss.

Q: Can I reuse the old gasket if it looks intact?
A: No, manifold gaskets are designed for single use only. Reusing an old gasket can result in improper sealing, exhaust leaks, and potential engine damage.

Q: What's the difference between this aftermarket gasket and the OEM version?
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.