Heat Exchanger Gasket – Fits Volvo Penta AQ131/AQ151/AQ171 Series (Replaces 855405)
Heat Exchanger Gasket – Fits Volvo Penta AQ131/AQ151/AQ171 Series (Replaces 855405) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Heat Exchanger Gasket – Fits Volvo Penta AQ131/AQ151/AQ171 Series (...
Product Details
This Heat Exchanger Gasket – Fits Volvo Penta AQ131/AQ151/AQ171 Series (Replaces 855405) is designed to create a durable seal for the heat exchanger housing in various Volvo Penta 4-cylinder petrol engines (120–171 HP) from approximately 1968–1994.
It serves as a direct cross-reference for Volvo Penta part number 855405 and Orbitrade 22015.
- Engineered for external mounting between heat exchanger housing components.
- Constructed from high-quality, heat and coolant-resistant materials.
- Ensures a reliable seal to prevent coolant leaks and maintain system pressure.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 855405 |
| Orbitrade | 22015 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is compatible with the following Volvo Penta gasoline engines.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo Penta | 230A | 120 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | 230B | 120 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ131A | 131 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ131B | 131 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ131C | 131 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ131D | 131 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | 250A | 120 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | 250B | 120 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | 251A | 120 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ151A | 151 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ151B | 151 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ151C | 151 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ171A | 171 | 4-Stroke | 1968–1994 | 855405 | |
| Volvo Penta | AQ171C | 171 | 4-Stroke | 1968–1994 | 855405 |
Technical Specs
- Product Type
- Heat Exchanger Gasket
- Installation
- External mounting, between housing components
- Connection
- Surface seal
- Dimensions
- 25.0 cm L x 14.5 cm W x 2.5 cm H
- Fitting Type
- Heat exchanger housing gasket
- Operating Temperature
- Engine coolant temperature range
- Other Technical Attributes
- Heat and coolant resistant
What’s in the Box
- 1 x Heat Exchanger Housing Gasket (855405)
Installation Notes
- Ensure the engine is completely cool and disconnect the negative battery cable.
- Drain the engine cooling system into a suitable container.
- Carefully disassemble the components required to access the heat exchanger housing.
- Remove the old gasket and thoroughly clean both mating surfaces. All old gasket material and corrosion must be removed for a proper seal.
- Place the new gasket into position, ensuring it is correctly aligned.
- Reassemble the housing components and tighten all fasteners to the manufacturer-specified torque values.
- Refill the cooling system with the appropriate coolant, reconnect the battery, and start the engine to check for any leaks.
Troubleshooting & FAQ
How do I know if this gasket needs replacement?
Signs of a failing heat exchanger gasket include visible coolant leaks around the exchanger housing, unexplained loss of coolant, engine overheating, or milky-looking oil, which indicates coolant contamination.
Can I reuse my old gasket?
No. Gaskets are single-use components designed to compress and create a seal. Once removed, they lose their sealing capability and must be replaced to prevent leaks.
Do I need to apply sealant to this gasket?
Generally, no. This gasket is designed to seal without additional chemical sealants. Applying sealant can sometimes interfere with proper sealing unless specifically instructed by your engine's service manual.
What happens if I don't replace a leaking gasket?
A leaking heat exchanger gasket can lead to critical engine damage from overheating or from coolant mixing with engine oil, which compromises lubrication.
Is this gasket for gasoline or diesel engines?
This gasket is designed specifically for the Volvo Penta gasoline (petrol) engine models listed in the compatibility chart. It is not intended for use on diesel engines.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It has been built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and quality.
Shipping speed & cost
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
This product is 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 if unused and 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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