MerCruiser 4.3L V6 Marine Thermostat Housing Assembly | 16413-C

Used MerCruiser 4.3L V6 marine engine thermostat housing assembly featuring casting number 16413-C. This cast-metal housing is part of the engine cooling system, distributing cooling water through the engine and connected cooling hoses.

The assembly includes the housing, multiple water hose connections, and attached temperature sender or switch components as pictured. It may be suitable for certain MerCruiser 4.3L V6 inboard and sterndrive engines, subject to fitment verification.

Highlights

• MerCruiser Marine Thermostat Housing Assembly

• Designed for Certain 4.3L V6 Marine Engines

• Casting Number 16413-C

• Cast-Metal Cooling System Housing

• Multiple Cooling Water Hose Connections

• Temperature Sender / Switch Fittings

• Thermostat Housing Cover and Flange

• Used OEM-Style Marine Engine Component

• Suitable for Replacement or Rebuilding

• Heavy Corrosion – Untested

• Sold Exactly as Pictured

Condition

Used condition with heavy rust, corrosion, oxidation, and deteriorated exterior coating throughout the housing.

The hose outlets and mounting flanges show significant rust accumulation. Remnants of old gasket or sealant material are visible around the mating surfaces.

The attached fittings and sender components are included as pictured, but their functionality has not been verified.

This assembly has not been pressure tested or inspected internally for corrosion damage, cracks, restrictions, or leaks.

The condition of the internal thermostat and passages is unknown. Cleaning, inspection, and possible rebuilding or replacement of components will be necessary before installation.

Sold AS-IS for parts, repair, or rebuilding.

Please review all photos carefully for exact condition and included components.

Specifications

Make: MerCruiser

Product Type: Marine Thermostat Housing Assembly

Engine Compatibility: Certain MerCruiser 4.3L V6 Engines

Engine Displacement: 4.3L

Engine Configuration: V6

Casting Number: 16413-C

Material: Cast Metal

Cooling System: Marine Raw-Water Cooling Applications (verify fitment)

Hose Connections: Multiple Inlet and Outlet Ports

Temperature Sender Fittings: Included as Pictured

Thermostat: Presence and Condition Not Verified

Condition: Used – Heavily Corroded / Untested

Quantity: 1 Assembly

Fitment: Buyer must verify casting number, hose connections, engine serial number, and compatibility before purchase.

Shipping

Shipping is available. Buyer must verify whether delivery will be to a residential or business address and whether a forklift is available for unloading, if applicable.

Dealer Sale – Sunset Marine TX LLC

SKU: 11117