Water Pump Gasket – Fits Volvo/Volvo Penta Engines (Replaces 1378491)
Water Pump Gasket – Fits Volvo/Volvo Penta Engines (Replaces 1378491) 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
Water Pump Gasket – Fits Volvo/Volvo Penta Engines (Replaces 1378491)
Product Details
This aftermarket Water Pump Gasket is designed to create a secure seal in the water pump assembly. It fits a range of Volvo and Volvo Penta 2.3L L4 and 2.9L L6 gasoline engines manufactured between 1985 and 1998, including marine AQ series and various automotive models.
It serves as a direct replacement for Volvo/Volvo Penta part numbers 1378491 and 1326344, and is an interchange for Sierra Marine 18-2993.
- Installs in the water pump assembly to prevent coolant leaks.
- Engineered as an OEM-equivalent replacement part.
- Guaranteed to meet or exceed original equipment specifications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Volvo/Volvo Penta | 1326344 | 1378491 |
| Volvo/Volvo Penta | 1378491 | |
| Sierra Marine | 18-2993 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket fits a broad range of Volvo Penta marine engines, including the 230, 250, 251, AQ, and B230 series. Check your model against the list for compatibility.
| Brand | Model | OEM Part No. |
|---|---|---|
| Volvo Penta | 230A | 1378491 |
| Volvo Penta | 230B | 1378491 |
| Volvo Penta | 250A | 1378491 |
| Volvo Penta | 250B | 1378491 |
| Volvo Penta | 251A | 1378491 |
| Volvo Penta | AQ125B | 1378491 |
| Volvo Penta | AQ131A | 1378491 |
| Volvo Penta | AQ131B | 1378491 |
| Volvo Penta | AQ131C | 1378491 |
| Volvo Penta | AQ131D | 1378491 |
| Volvo Penta | AQ145B | 1378491 |
| Volvo Penta | AQ151A | 1378491 |
| Volvo Penta | AQ151B | 1378491 |
| Volvo Penta | AQ151C | 1378491 |
| Volvo Penta | AQ171A | 1378491 |
| Volvo Penta | AQ171C | 1378491 |
| Volvo Penta | B230 | 1378491 |
| Volvo Penta | B230E | 1378491 |
| Volvo Penta | B230F | 1378491 |
| Volvo Penta | B230FB | 1378491 |
| Volvo Penta | B230FX | 1378491 |
This part is also compatible with many popular Volvo automotive models from the 1980s and 1990s, including the 240, 740, and 940 series.
| Brand | Model | Engine | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Volvo | 240 | 2.3L L4 | 4-Stroke | 1990–1993 | 1378491 | |
| Volvo | 244 | 2.3L L4 | 4-Stroke | 1985–1989 | 1378491 | DL, GL trims |
| Volvo | 245 | 2.3L L4 | 4-Stroke | 1985–1989 | 1378491 | DL, GL trims |
| Volvo | 740 | 2.3L L4 | 4-Stroke | 1985–1992 | 1378491 | Base, GL, GLE, T trims |
| Volvo | 745 | 2.3L L4 | 4-Stroke | 1985 | 1378491 | GLE trim |
| Volvo | 760 | 2.3L L4 | 4-Stroke | 1985–1990 | 1378491 | Base, GLE trims |
| Volvo | 780 | 2.3L L4 | 4-Stroke | 1989–1991 | 1378491 | Base trim |
| Volvo | 940 | 2.3L L4 | 4-Stroke | 1991–1995 | 1378491 | Base, GL, GLE, SE, T trims |
| Volvo | 960 | 2.9L L6 | 4-Stroke | 1995–1997 | 1378491 | Base trim |
| Volvo | S90 | 2.9L L6 | 4-Stroke | 1997–1998 | 1378491 | Base trim |
| Volvo | V90 | 2.9L L6 | 4-Stroke | 1997–1998 | 1378491 | Base trim |
Technical Specs
- Product Type
- Gasket
- Installation
- Water Pump Assembly
- Fuel Type
- Gasoline
- Dimensions
- 15.5 cm × 16.5 cm × 0.1 cm
- Weight
- 0.003 kg (0.006 lb)
- Warranty
- Manufacturer warranty (minimum 12 months)
- Other Technical Attributes
- OEM replacement part
What’s in the Box
- 1 x Gasket (Replaces 1378491/1326344)
Installation Notes
- Ensure the engine is completely cool before starting. Disconnect the negative battery terminal.
- Drain the cooling system completely into a suitable container.
- Remove any components obstructing access to the water pump, such as belts or hoses.
- Unbolt and carefully remove the old water pump from the engine block.
- Thoroughly clean both the engine block and water pump mating surfaces. Remove all traces of the old gasket and any sealant.
- Position the new gasket on the water pump. Do not use sealant unless specified by the engine manufacturer.
- Reinstall the water pump, tightening bolts to the manufacturer's specified torque in the correct sequence.
- Reconnect all hoses, belts, and other components. Refill the cooling system, checking for leaks.
Troubleshooting & FAQ
How do I know if my water pump gasket is failing?
Common signs include coolant leaks from the water pump area, engine overheating, a low coolant warning light, or visible rust, deposits, or corrosion around the pump housing. A whining noise from the pump area can also indicate a failing bearing, which often necessitates a full pump and gasket replacement.
Is gasket sealant required for this installation?
In most cases, this gasket is designed to be installed dry. The gasket material itself creates the seal. Using sealant can sometimes interfere with proper sealing unless explicitly required by your specific engine's service manual. Always clean the mating surfaces thoroughly before installation.
Can I reuse my old water pump gasket?
No. Gaskets are single-use components that compress and conform to the mating surfaces. Once torqued and heat-cycled, they lose their ability to create a reliable seal and must be replaced whenever the component is removed.
How do I confirm this part fits my engine?
Cross-reference your existing part number with the numbers in our Part Number Matrix. Additionally, check your engine model and year against the compatibility tables provided. When in doubt, compare our product photos to your old part before ordering.
OEM vs. Aftermarket?
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.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
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.
Payment & Security
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