Volvo Penta Thermostat Housing Gasket – 1542123
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Product Title
Volvo Penta Gasket 1542123 – OEM Marine Engine Thermostat Housing Gasket
Product Description
The Volvo Penta 1542123 Gasket is a genuine OEM sealing component engineered to provide a reliable, leak-free seal within Volvo Penta marine engine cooling systems.
This gasket is specifically designed for use in thermostat housing and coolant passage interfaces, where maintaining proper sealing is critical for system pressure, coolant flow, and overall engine temperature control. It prevents coolant leaks and air intrusion, both of which can lead to overheating, inconsistent temperature regulation, and reduced engine efficiency.
Manufactured from high-quality marine-grade composite gasket material, it is built to withstand continuous exposure to heat, coolant chemicals, and pressure cycles. The material maintains its structural integrity and sealing capability even under repeated thermal expansion and contraction, making it ideal for both freshwater and saltwater applications.
Designed to Volvo Penta’s exact OEM specifications, this gasket ensures proper fitment, consistent compression, and long-term sealing performance without the need for trimming or modification.
Key Features
- Genuine Volvo Penta OEM gasket
- Designed for thermostat housing and cooling system sealing
- Prevents coolant leaks and air intrusion
- Maintains proper cooling system pressure
- Heat- and chemical-resistant composite construction
- Withstands repeated thermal cycling
- Direct OEM fit – no modification required
Engine Compatibility
Volvo Penta Marine Engines
Commonly used on:
- Volvo Penta AQ series gasoline engines
- Volvo Penta 4-cylinder and V6 gasoline engines
- Volvo Penta small-block V8 marine engines
Cooling System Applications
- Thermostat housing assemblies
- Coolant outlet connections
- Raw water and closed cooling systems
➡️ Often used in conjunction with Volvo Penta thermostat service components
Serial Number Fitment Notice
Fitment depends on:
- Engine model and variant
- Cooling system configuration
- Thermostat housing design
⚠️ Always confirm compatibility using your engine serial number before ordering.
Specifications
- Part Number: 1542123
- Type: Cooling system gasket
- Function: Seals thermostat housing / coolant passages
- Material: Marine-grade fiber/composite gasket material
- Operating Environment:
- High-temperature coolant systems
- Marine freshwater and saltwater use
What’s Included
- Gasket (single unit)
When This Part Needs Replacement
Replace the gasket if you notice:
- Coolant leakage at housing or mating surfaces
- Loss of cooling system pressure
- Overheating caused by coolant loss
- Visible cracking, flattening, or deterioration
- Anytime the housing is removed (gaskets should not be reused)
Installation Notes
- Always install a new gasket during service
- Clean mating surfaces thoroughly before installation
- Ensure proper alignment of bolt holes and passages
- Do not overtighten fasteners
- Pressure test system after installation
Alternate / Superseded Part Numbers
OEM Cross References
- Volvo Penta: 1542123
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
💡 Parts Desk Insight
Gaskets like this are cheap insurance—anytime you open a thermostat housing, replace it. Reusing old ones is one of the most common causes of coolant leaks 👍
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.