Cummins Expansion Plug C3943808 – Reliable Seal for Engine Blocks
The Cummins Expansion Plug C3943808 is designed to provide a tight seal in engine blocks, helping to maintain coolant integrity and prevent leaks. By using high-quality Cummins parts like this plug, you ensure long-lasting durability and steady performance in both standard and heavy-duty operations.
🔧 Specifications
- Part Name: Expansion Plug
- Part Number: C3943808
- Function: Seals coolant passages in the engine block
- Category: Cummins engine parts
- Material: Durable metal for high pressure resistance
⭐ Key Features
The C3943808 expansion plug offers excellent sealing performance against coolant leaks. Its robust metal construction withstands high pressure and temperature changes. In addition, its precise fit reduces installation effort and ensures long-term stability. Because of its durability, this plug minimizes maintenance needs and extends the service life of the cooling system.
⚙️ Technical Role
Expansion plugs play a key role in protecting the cooling system. The C3943808 prevents coolant from escaping while blocking contaminants from entering. As a result, the engine maintains proper coolant levels, stable operating temperatures, and efficient performance. Moreover, it supports long-term reliability, especially in engines exposed to continuous heavy workloads.
🚛 Applications
The Cummins Expansion Plug C3943808 is suitable for trucks, buses, construction equipment, marine engines, and industrial machinery. Fleet operators and equipment owners rely on it because it enhances engine protection and reduces the risk of downtime caused by coolant system failures.
📦 Availability
The Cummins Expansion Plug C3943808 is in stock and ready for global shipping. To ensure the correct match with your Cummins parts configuration, please provide your engine serial number (ESN). Our team will help confirm compatibility so you can install it with confidence.
