Volvo Penta 18665 Gasket – Fits Volvo Penta D41B Cooling System
Volvo Penta 18665 Gasket – Fits Volvo Penta D41B Cooling System 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
Volvo Penta 18665 Gasket – Fits Volvo Penta D41B Cooling System
Product Details
This is an aftermarket Volvo Penta 18665 Gasket designed for the cooling system of Volvo Penta D41B engines. It functions as a crucial sealing component, ensuring proper and efficient cooling system operation by preventing leaks.
This part is a direct replacement for Volvo Penta part number 18665.
- Installation Type: Direct replacement for a seamless fit.
- Engine Compatibility: Specifically designed for Volvo Penta diesel engines.
- Schematic Location: Used at key position 21 in the D41B cooling system diagram.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 18665 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Volvo Penta | D41B | 18665 | Used in cooling system assembly |
Technical Specs
- Product Type
- Gasket
- Installation
- Direct replacement
- Fuel Type
- Compatible with diesel engines
- Dimensions
- 14.0" L x 6.0" W x 0.3" H
- Weight
- Approximately 0.002 kg (0.004 lbs)
- Other Attributes
- Used at schematic object key position 21 in D41B cooling system
What’s in the Box
- 1 x Gasket (18665)
Installation Notes
- Ensure the engine is completely cool and disconnect the battery.
- Drain the cooling system fluid into a suitable container.
- Locate and carefully access the component where the old gasket is situated.
- Remove the old gasket, taking care not to damage the housing surfaces.
- Thoroughly clean both mating surfaces, removing all residue from the old gasket.
- Position the new gasket correctly on the mounting surface.
- Reassemble the components and torque bolts to manufacturer specifications.
- Refill the cooling system with the recommended coolant.
- Reconnect the battery, start the engine, and carefully check for any leaks as it reaches operating temperature.
Troubleshooting & FAQ
How do I confirm this gasket will fit my D41B engine?
This gasket is listed as compatible with the Volvo Penta D41B engine for use in the cooling system. Always double-check your engine's part manual or compare your old part to our product images and specifications to ensure an exact match.
What are the signs of a failed cooling system gasket?
Common signs include visible coolant leaks around the component housing, engine overheating, a drop in coolant level, or steam from the engine bay. A visual inspection may also reveal cracking or brittleness in the old gasket material.
When should this gasket be replaced?
It is recommended to replace gaskets whenever the component they seal is removed for service or repair. They should also be replaced immediately if there are any signs of leakage or material degradation.
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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