Thermostat Gasket – Fits Bombardier Recmar V4/V6 Engines (Replaces 339044, 0339044, 0765579)
Thermostat Gasket – Fits Bombardier Recmar V4/V6 Engines (Replaces 339044, 0339044, 0765579) is backordered and will ship as soon as it is back in stock.
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Thermostat Gasket – Fits Bombardier Recmar V4/V6 Engines (Replaces ...
Product Details
This Thermostat Gasket provides a reliable seal for the cooling system on Bombardier, Johnson, and Evinrude 60° V4 and V6 engines. It is engineered as a direct-fit component for various thermostat housing configurations within these engine series.
It serves as a direct replacement for Bombardier/OMC part numbers 339044, 0339044, and 0765579, and interchanges with GLM 33070.
- Installs as a direct replacement for the original gasket.
- Designed for marine gasoline engine applications.
- Ensures a proper seal for the thermostat housing connection.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Bombardier/OMC | 339044 / 0339044 / 0765579 |
| GLM | 33070 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Johnson and Evinrude engines, this gasket is used in the thermostat housing on the specified V4 and V6 models.
| Brand | Model | Rated HP | OEM Part No. | Notes |
|---|---|---|---|---|
| Johnson/Evinrude | 60° V4 | Various | 339044/0339044/0765579 | Used in thermostat housing |
| Johnson/Evinrude | 60° V6 | Various | 339044/0339044/0765579 | Used in thermostat housing |
Technical Specs
- Product Type
- Thermostat Gasket
- Installation
- Direct Replacement
- Fuel Type
- Gasoline
- Connection
- Thermostat Housing
- Dimensions
- Height: 0.3 cm, Width: 11.5 cm, Length: 12.0 cm
- Weight
- Approximately 0.0 kg (nominal weight)
- Fitting Type
- Thermostat Housing Seal
- Other Technical Attributes
- Designed for 60° V4 and V6 engines
What’s in the Box
- 1 x Thermostat Gasket (339044/0339044/0765579)
Installation Notes
- Ensure the engine is cool and disconnect the battery.
- Drain coolant to a level below the thermostat housing.
- Loosen and remove any hoses connected to the housing.
- Unbolt and remove the thermostat housing cover.
- Carefully remove the old thermostat and gasket.
- Thoroughly clean any old gasket material or corrosion from both mating surfaces.
- Position the new thermostat and gasket correctly in the housing.
- Reinstall the housing cover and tighten bolts to the manufacturer’s recommended torque specifications.
- Reconnect all hoses and clamps securely.
- Refill the cooling system with the appropriate coolant mixture.
- Reconnect the battery, start the engine, and carefully check for any leaks around the housing as the engine warms up.
- Monitor the engine temperature to ensure the cooling system is operating correctly.
Troubleshooting & FAQ
How do I know if this gasket will fit my engine?
This gasket is specifically designed for Bombardier, Johnson, and Evinrude 60° V4 and V6 engines. The best way to confirm fitment is to check your service manual or existing part for the numbers 339044, 0339044, or 0765579. Comparing your old gasket to the product images and dimensions also helps ensure a correct match.
What are the signs of a failing thermostat gasket?
A faulty thermostat gasket typically causes coolant leaks around the thermostat housing. You may also notice engine overheating, erratic temperature gauge readings, or visible cracks and brittleness on the old gasket upon inspection.
Should I use sealant with this gasket?
This gasket is generally designed to be installed dry without any additional sealant. However, it is always best practice to consult your engine's official service manual for specific procedures, as some applications may have unique requirements.
Is it necessary to replace the thermostat when replacing the gasket?
While not strictly required, it is highly recommended to replace the thermostat at the same time as the gasket. This ensures optimal cooling system performance and prevents having to perform the same repair twice if the thermostat fails shortly after the gasket is replaced.
What causes a thermostat gasket to fail?
Thermostat gaskets fail over time due to constant exposure to heat, pressure, and coolant chemicals. Age, improper installation (uneven torque), or engine overheating can accelerate material degradation, leading to leaks.
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.
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