Illustrative photo — the delivered item may differ in appearance. Orders are fulfilled by catalog part number (SKU).
Water Outlet Connection Thermostat Housing Cummins 3943300 | 5272656, BG6T8594BB, 394330000
Ensure optimal coolant flow and prevent engine overheating with this heavy-duty Cummins water outlet connection thermostat housing. Engineered to meet strict factory standards for a leak-free seal and reliable performance.
Description
Reliable Engine Cooling Performance
The Cummins 3943300 Water Outlet Connection (also known as a thermostat housing or vertical water neck) is a critical component of your engine’s cooling system. It serves as the exit point for coolant leaving the engine block on its way to the radiator, ensuring efficient heat dissipation and preventing catastrophic engine overheating.
Heavy-Duty Construction & Precise Fit
Manufactured from high-grade materials to withstand extreme temperatures, high pressure, and corrosive coolant environments, this water outlet connection is built for long-lasting durability. It features a precision-machined mounting surface to guarantee a leak-free seal, maintaining the integrity of your cooling circuit under heavy-duty operating conditions.
Key Features & Benefits
- Direct Replacement: Designed to match the exact dimensions and specifications of the factory part for a hassle-free installation.
- Durable Materials: Cast construction resists thermal cracking, warping, and corrosion.
- Optimal Coolant Flow: Engineered to maintain unrestricted coolant passage, helping to regulate engine temperature efficiently.
- Versatile Application: Commonly used in vertical water neck configurations where a straight radiator hose connection is required.
Engine Compatibility
This water outlet connection is compatible with a wide range of Cummins diesel engines, including:
- Cummins 4BT 3.9L / 4.5L
- Cummins 6BT 5.9L (including 24V configurations)
- Cummins ISB 5.9L / 6.7L
- Cummins QSB 4.5L / 6.7L
- Cummins ISD 6.7L
