Thermostat Kit 60°C (140°F) – Fits Volvo Penta AQ/MD Series (Replaces 876097, 876080, 875781)
Thermostat Kit 60°C (140°F) – Fits Volvo Penta AQ/MD Series (Replaces 876097, 876080, 875781) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Thermostat Kit 60°C (140°F) – Fits Volvo Penta AQ/MD Series (Replac...
Product Details
This Thermostat Kit 60°C (140°F) is designed for a wide range of Volvo Penta engines from the 1960s to the 1990s, including gasoline AQ/BB series and diesel MD series models equipped with raw water cooling systems. It helps maintain the optimal engine operating temperature of 60°C (140°F) for reliable performance.
It serves as a direct replacement for Volvo Penta part numbers 876097, 876080, 875781, 875790, 824912, 82812, 841951, 858640, and 876797.
- Direct OEM-style replacement for easy installation.
- Compatible with raw water cooling systems.
- Maintains a stable 60°C (140°F) operating temperature.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Volvo Penta | 876097 |
| Volvo Penta | 876080 |
| Volvo Penta | 875781 |
| Volvo Penta | 875790 |
| Volvo Penta | 824912 |
| Volvo Penta | 82812 |
| Volvo Penta | 841951 |
| Volvo Penta | 858640 |
| Volvo Penta | 876797 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This thermostat fits a variety of Volvo Penta gasoline and diesel engines. Please verify your specific model is listed.
| Brand | Model | OEM Part No. |
|---|---|---|
| Volvo Penta | AQ60 | 876097, 876080, 875781 |
| Volvo Penta | AQ90, AQ95, AQ95A | 876097, 876080, 875781 |
| Volvo Penta | AQ105A | 876097, 876080, 875781 |
| Volvo Penta | AQ110 | 876097, 876080, 875781 |
| Volvo Penta | AQ115A, AQ115B | 876097, 876080, 875781 |
| Volvo Penta | AQ120 | 876097, 876080, 875781 |
| Volvo Penta | AQ130A, AQ130B, AQ130C, AQ130D | 876097, 876080, 875781 |
| Volvo Penta | BB30, BB100 | 876097, 876080, 875781 |
| Volvo Penta | BB115A, BB115B, BB115C | 876097, 876080, 875781 |
| Volvo Penta | MB18 | 876097, 876080, 875781 |
| Volvo Penta | MB20A, MB20B, MB20C | 876097, 876080, 875781 |
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | AQD2B | 4-Stroke | 876097, 876080, 875781 | Raw water cooled |
| Volvo Penta | MD1B, MD2B, MD3B | 4-Stroke | 876097, 876080, 875781 | Raw water cooled |
| Volvo Penta | MD11, MD11C, MD11D | 4-Stroke | 876097, 876080, 875781 | Raw water cooled |
| Volvo Penta | MD17, MD17C, MD17D | 4-Stroke | 876097, 876080, 875781 | Raw water cooled |
Technical Specs
- Product Type
- Marine Engine Thermostat Kit
- Installation
- OEM Direct Replacement
- Fuel Type
- Compatible with Gas and Diesel Engines
- Housing Material
- Marine-Grade Metal
- Operating Temperature
- 60°C (140°F)
- Other Technical Attributes
- Raw water cooling system compatible
What’s in the Box
- 1 x Thermostat Kit (Replaces 876097/876080/875781)
Installation Notes
- Ensure the engine is completely cool before starting.
- Drain the engine coolant to a level below the thermostat housing.
- Carefully remove the bolts from the thermostat housing cover.
- Note the orientation of the old thermostat before removing it from the housing.
- Thoroughly clean the mating surfaces of the housing and cover, removing all old gasket material.
- Insert the new thermostat, ensuring it is in the correct orientation.
- Position the new gasket, reinstall the cover, and tighten the bolts to the manufacturer’s specified torque.
- Refill the cooling system, start the engine, and carefully check for any leaks as it warms up.
Troubleshooting & FAQ
How do I confirm this thermostat fits my engine?
First, check the Engine & Model Compatibility tables to see if your model is listed. The most reliable method is to cross-reference the part number stamped on your old thermostat with the numbers in our Part Number Matrix. This kit fits a wide range of Volvo Penta AQ, BB, and MD series engines.
What are the signs of a failing thermostat?
Common symptoms include engine overheating, the engine failing to reach normal operating temperature, erratic temperature gauge readings, or coolant leaking from the thermostat housing area.
Why is a 60°C (140°F) temperature rating important?
This lower temperature is specifically for raw water (sea water or lake water) cooled engines. It helps prevent salt, mineral, and scale buildup inside the cooling passages, which can occur at higher temperatures and lead to blockages and overheating.
Is a gasket included with the thermostat?
Yes, this is a complete kit that includes the thermostat and the required mounting gasket(s) to ensure a proper seal during installation.
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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