Cummins Expansion Plug 206224 – Engine Core Hole Seal
The Cummins Expansion Plug 206224 is a precision sealing component designed to block off engine casting core holes in diesel cylinder blocks or heads. It ensures leak-free sealing of coolant passages, helping maintain internal pressure and prevent fluid loss in high-temperature and high-vibration conditions common to Cummins parts applications.
🔩 Specifications
- Part Number: 206224
- Part Name: Expansion Plug
- Material: High-grade carbon steel
- Outer Diameter: Confirm with engine service manual
- Condition: 100% Brand New
- Category: Engine Block Sealing Components
- Origin: Manufactured to Cummins OEM standards
- Compatibility: Used in various Cummins genuine parts engines and CCEC parts systems (verify with ESN)
⭐ Key Features
- Durable steel construction resists pressure and corrosion
- Ensures secure sealing of casting core holes
- Engineered to withstand thermal expansion and vibration
- Press-fit installation provides mechanical grip without adhesives
- Fully compatible with Cummins parts cooling systems
⚙️ Technical Insights
- Sealing Function: Blocks unused passages left by sand casting processes, protecting against coolant or oil leakage.
- Interference Fit: Designed for controlled deformation under press-in force, ensuring long-term mechanical seal.
- Thermal Endurance: Withstands continuous exposure to coolant temperatures and fluctuating engine conditions.
- OEM Precision: Matches dimensional specs for a tight, secure fit in Cummins genuine parts and CCEC parts castings.
🛠 Application Scenarios
The Cummins 206224 Expansion Plug is commonly applied in:
- Cylinder block coolant jacket seals
- Cylinder head core hole closures
- Generator and industrial engine builds
- Heavy-duty on-road diesel platforms
- Construction and oilfield engines with pressure-sealed coolant systems
📦 Availability
This expansion plug is in stock and available for international shipping.
Please provide your engine serial number (ESN) to confirm fitment for your Cummins parts configuration. Our support team is available for fast verification and assistance.
