1. Boat Parts In Otsterndriv Sterndrive Prices For Sale.
  2. sku: 4479199028585713
  3. VOLVO PENTA 855411

VOLVO PENTA 855411 Cylinder Engine Thermostat Housing B21 2.1

fits model: Aq125, Aq140, Marine. make: Volvo.

855411 Volvo Penta B21 2.1 L Aq125 A Aq140 4 Cylinder Marine Engine Thermostat Housing

( Brand: Volvo Penta ), ( Manufacturer Part Number: 855411 ), ( Part Type: Cylinder Engine Thermostat Housing ), ( Country Of Origin: United States )

Review VOLVO PENTA B21 2.1 Cylinder Engine Thermostat Housing fits AQ125 AQ140 MARINE

The Volvo Penta 855411 B21 2.1 AQ125 AQ140 Cylinder Marine Engine Thermostat Housing is a crucial component of the cooling system in Volvo Penta B21 marine engines. This housing is specifically designed to accommodate both AQ125 and AQ140 thermostats, providing flexibility to engine operators based on their cooling requirements.

The housing is made from high-quality, corrosion-resistant materials, ensuring durability and longevity even in the harsh marine environment. The housing features a compact design that allows for easy installation and access to the thermostat, enabling quick and efficient maintenance.

The Volvo Penta 855411 B21 2.1 AQ125 AQ140 Cylinder Marine Engine Thermostat Housing comes with a gasket that ensures a perfect seal, preventing coolant leaks and maintaining the integrity of the cooling system. The housing also includes mounting points for securing the thermostat in place, ensuring a stable and reliable operation.

The thermostat housing plays a vital role in regulating the engine temperature, preventing it from overheating or running too cold. By maintaining the optimal engine temperature, the Volvo Penta 855411 B21 2.1 AQ125 AQ140 Cylinder Marine Engine Thermostat Housing contributes to improved engine performance, increased fuel efficiency, and extended engine life.

In summary, the Volvo Penta 855411 B21 2.1 AQ125 AQ140 Cylinder Marine Engine Thermostat Housing is a robust and reliable component of the cooling system for Volvo Penta B21 marine engines. Its corrosion-resistant design, compact size, and easy installation make it an essential upgrade or replacement for boat owners and operators seeking optimal engine performance and extended engine life.

Volvo Penta B21 marine engines are known for their durability and efficiency in powering various watercrafts. The thermostat housing (part number 855411) is an essential component that maintains the engine's cooling system. Let's discuss the pros and cons of buying this specific thermostat housing.

Pros:

1. OEM Part: This thermostat housing is an original equipment manufacturer (OEM) part, ensuring a perfect fit and function for your Volvo Penta B21 engine.

2. Reliable: Volvo Penta is a reputable brand known for producing high-quality marine engines and components. This thermostat housing is no exception.

3. Easy Installation: The thermostat housing is a straightforward part to replace, and the installation process is generally hassle-free.

Cons:

1. Cost: OEM parts tend to be more expensive than aftermarket alternatives. This thermostat housing is no exception.

2. Availability: Depending on the location and supplier, finding this specific OEM part in stock may take some time.

Conclusion:

When considering purchasing a Volvo Penta 855411 B21 thermostat housing, it is essential to weigh the pros and cons. The advantages include the reliable fit and function as an OEM part, while the downside is the higher cost compared to aftermarket alternatives. Ultimately, the choice depends on personal preferences and priorities, such as the importance of having a genuine Volvo Penta part or the need to save on costs. If having a genuine OEM part is a priority, then this thermostat housing is a solid investment. If cost is a significant concern, it may be worth considering aftermarket alternatives.

Details:

Part was removed from a Volvo Penta 4 cylinder Marine engine. Condition: Good used condition. Look at pictures closely and ask any questions, I try to describe parts as best can. Thanks -Mike.

What you see in the pictures is what get. Please look at all pictures and read entire before buying. I will do my best to resolve the issue. Mounting hardware is only included if it shown in the pictures.

Shelf 25-13-5-C.

part #: 855411 prices

  • $28.95-$58.50

specifications otsterndriv:

  • for models: Aq125, Aq140, Marine
  • for makes: Volvo
  • brand: Volvo Penta
  • mpn: 855411
  • part type: Cylinder Engine Thermostat Housing
  • country of origin: United States

shipping otsterndriv:

  • service: USPS Ground Advantage, USPS Priority Mail, FedEx Ground / FedEx Home Delivery, USPS Priority Mail Express
  • cost: $16.90
  • class: Standard, Expedited
  • carrier: USPS, FedEx
  • transit: 4-8 Days
  • type: Calculated

general otsterndriv:

  • Boat Parts > Sterndrive Motors Components > Other
  • condition: Used

offer otsterndriv:

  • availability: In Stock
  • started: November 25, 2025
  • sold: 0
  • quantity: 1
  • options: Ship-to-home

returns otsterndriv:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Buyer

payments otsterndriv:

  • wallet: Paypal
  • other
  • credit card: Mastercard

seller otsterndriv:

  • city: Huron, Ohio
  • # reviews: 113255
  • rating: 99.5%
for models: aq125, aq140, marine, for makes: volvo, part type: cylinder engine thermostat housing, country of origin: united states,
category: boat parts > sterndrive components, sku: 4479199028585713,
Volvo Penta 855411 Is Similar To:
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5 offers $28.95–$58.50 USD
  • Used. Offer #1 priced at $28.95 + $0.00 shipping estimate = $28.95* total. Complete as seen in photo.FREE SHIPPING
  • Used. Offer #2 priced at $39.00 + $18.45 shipping estimate = $57.45* total. Volvo Penta B21 2.1 L AQ125 A AQ140 4 Cylinder Marine Engine carb carburetor. Volvo Penta B21 2.1 L AQ125 A AQ140 4 Cylinder Marine Engine intake manifold.+$18.45 shipping
  • Used. Offer #3 priced at $58.50 + $15.00 shipping estimate = $73.50* total. Used and working unit.+$15.00 shipping
  • Used. Offer #4 priced at $29.95 + $7.00 shipping estimate = $36.95* total. Fresh Water, Good Condition.+$7.00 shipping
  • Used. Offer #5 priced at $48.00 + $11.85 shipping estimate = $59.85* total. From a AQ131A 4-Cylinder Sterndrive (B230 Block). Volvo Penta Thermostat Housing.+$11.85 shipping

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