Exhaust Manifold Gasket – Fits Volvo Penta AQ Series Engines (Replaces 855967)
Exhaust Manifold Gasket – Fits Volvo Penta AQ Series Engines (Replaces 855967) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Exhaust Manifold Gasket – Fits Volvo Penta AQ Series Engines (Repla...
Product Details
This Exhaust Manifold Gasket provides an optimal seal between the exhaust pipe and manifold. It is designed for various Volvo Penta AQ series marine engines, including models AQ120B, AQ125A/B, AQ131A/B/C/D, AQ140A, AQ145A/B, AQ151A/B/C, 230A/B, and 250A/B.
This part serves as a direct replacement for Volvo Penta part numbers 855967 and 855383, and interchanges with Sierra 18-2991, Mallory 9-65801, and GLM 37100.
- Direct replacement installation.
- Designed for high-temperature gasoline engine exhaust applications.
- Includes one gasket as pictured.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Volvo Penta | 855383 | 855967 | |
| Volvo Penta | 855967 | ||
| Sierra Marine | 18-2991 | Also references 18-2991-1, 18-2991-9, and 18-2991-1-9. | |
| GLM | 37100 | ||
| Mallory Marine | 9-65801 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Volvo Penta | AQ120B | 855967 | |
| Volvo Penta | AQ125A, AQ125B | 855967 | |
| Volvo Penta | AQ131A, AQ131B, AQ131C, AQ131D | 855967 | |
| Volvo Penta | AQ140A, BB140A | 855967 | |
| Volvo Penta | AQ145A, AQ145B, BB145A | 855967 | |
| Volvo Penta | AQ151A, AQ151B, AQ151C | 855967 | |
| Volvo Penta | 230A, 230B | 855967 | |
| Volvo Penta | 250A, 250B | 855967 |
Technical Specs
- Product Type
- Exhaust Manifold Gasket
- Installation
- Direct replacement
- Fuel Type
- Gasoline
- Dimensions
- 9.0 cm × 0.2 cm × 6.0 cm (L × W × H)
- Weight
- 0.01 kg (0.022 lb)
- Technical Notes
- Designed for high-temperature exhaust applications
What’s in the Box
- 1x Gasket (Replaces 855967)
Installation Notes
- Disconnect the battery and allow the engine to cool completely before starting work.
- Carefully remove the exhaust manifold to access the old gasket location.
- Thoroughly clean both the manifold and engine block mating surfaces. Remove all old gasket material, carbon, and debris.
- Ensure both surfaces are clean, dry, and flat before positioning the new gasket.
- Place the new gasket into position. Do not use sealant unless specifically required by the engine's service manual.
- Reinstall the exhaust manifold. Hand-tighten bolts first to avoid cross-threading.
- Tighten the manifold bolts to the manufacturer's specified torque and in the correct sequence.
- Reconnect the battery, start the engine, and carefully check for any exhaust leaks around the new gasket.
Troubleshooting & FAQ
How do I know if this gasket fits my engine?
This gasket is designed for specific Volvo Penta AQ series gasoline engines. Please verify your model is listed in the "Engine & Model Compatibility" table and cross-reference the OEM part number (855967 or 855383) with your service manual.
Do I need to use gasket sealant with this part?
It is generally not recommended to use sealant on this type of gasket, as it can interfere with a proper seal. Always follow the specific instructions in your engine's service manual for best results.
What are the signs of a failing exhaust manifold gasket?
Common symptoms include a loud ticking or hissing noise from the engine bay (especially when cold), a noticeable exhaust smell in the cabin or engine compartment, and decreased engine performance or fuel efficiency.
How often should this gasket be replaced?
This gasket should be replaced whenever the exhaust manifold is removed for service or if signs of a leak are present. There is no fixed replacement interval; it is replaced on condition.
Is this an OEM part?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
What is the warranty and return policy?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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