The 4009220 KT19 Engine Cylinder Liner is a critical component engineered for the robust Cummins KT19 engine series. Designed to provide a durable and precise surface for piston movement, this liner is essential for maintaining optimal engine performance, efficiency, and longevity in demanding applications. Crafted with high-quality materials and manufacturing standards, it ensures superior resistance to wear, heat, and corrosion, making it an ideal choice for engine overhauls and maintenance.

| Parameter | Description |
|---|---|
| Part Number | 4009220 |
| Engine Compatibility | Cummins KT19 / KTA19 Series Engines |
| Material | High-grade Cast Iron Alloy |
| Type | Wet Cylinder Liner (typical for heavy-duty diesel engines) |
| Surface Treatment | Precision honed for optimal oil retention and reduced friction |
| Key Dimensions | Designed to OEM specifications for exact fit and function (Specific dimensions vary by engine build and may include bore, length, and flange details) |
Optimal Engine Performance: Provides a perfect cylinder bore for piston rings, ensuring excellent compression and combustion efficiency.
Extended Engine Life: Reduces wear on pistons and rings, prolonging the overall lifespan of the engine.
Superior Durability: Manufactured from robust materials to withstand extreme temperatures and high-pressure operating conditions.
Corrosion and Wear Resistance: Engineered to resist chemical corrosion from combustion byproducts and abrasive wear.
Reduced Oil Consumption: Precision honing promotes proper oil retention and minimizes oil bypass, leading to lower oil consumption.
Exact Fit and Easy Installation: Manufactured to Cummins OEM standards for seamless integration and straightforward replacement.
The 4009220 KT19 Cylinder Liner is specifically designed for use in heavy-duty equipment powered by the Cummins KT19 and KTA19 engine series. These engines are widely utilized across various demanding industries:
Marine Propulsion: Commercial vessels, tugboats, fishing boats, and other marine applications requiring reliable and continuous power.
Power Generation: Diesel generator sets providing prime, standby, or emergency power for industrial facilities, data centers, hospitals, and remote sites.
Construction Equipment: Large excavators, bulldozers, wheel loaders, mining trucks, and other heavy machinery operating in challenging construction and mining environments.
Industrial Applications: Various industrial units and equipment that rely on robust diesel power.
Railroad Locomotives: Used in some models of locomotives for powerful and sustained operation.
The durability and reliability of the 4009220 KT19 liner are crucial in scenarios where engine downtime can lead to significant operational losses.
Marine Operations: In a commercial fishing trawler, a failing cylinder liner could cause engine shutdown far offshore, leading to lost catch and costly rescue. The 4009220 liner ensures the KT19 engine's resilience for long voyages and heavy-duty propulsion, vital for consistent operation and crew safety.
Remote Power Generation: For a remote mining camp relying solely on diesel generators for electricity, a cylinder liner failure means power outages impacting operations and safety. Using the high-quality 4009220 liner in the KT19 generator set ensures uninterrupted power supply, even under continuous, high-load conditions.
Heavy Construction Projects: On a large-scale highway construction site, bulldozers and excavators with KT19 engines work tirelessly. A worn liner leads to reduced engine power and increased fuel consumption, slowing down progress. Replacing it with the 4009220 liner restores optimal engine efficiency, allowing machinery to perform at peak capacity and keep projects on schedule.
For comprehensive maintenance and repair of Cummins KT19 engines, several other components are frequently associated with the cylinder liner, ensuring complete system integrity and performance.
Piston Kits: Including pistons, piston rings, and piston pins. These work directly with the liner for combustion and power transfer. Applicable to all equipment using KT19 engines.
Gasket Sets (Upper & Lower): Essential for sealing various engine components, including the cylinder head and block. Crucial for preventing leaks after liner replacement. Applicable to all equipment using KT19 engines.
Main & Connecting Rod Bearings: Support the crankshaft and connecting rods, ensuring smooth rotation and power transmission. Often replaced during major engine overhauls involving liners. Applicable to all equipment using KT19 engines.
Engine Valves (Intake & Exhaust): Control the flow of gases in and out of the combustion chamber. Vital for engine breathing and efficiency. Applicable to all equipment using KT19 engines.
Water Pump: Manages coolant circulation to prevent overheating, directly impacting liner health. Applicable to all equipment using KT19 engines.
Proper installation and routine maintenance are paramount for the longevity and performance of cylinder liners. Addressing common issues proactively can prevent costly engine damage.
Issue: Cylinder Liner Wear
Problem: Caused by inadequate lubrication, abrasive contaminants in engine oil, or high operating temperatures, leading to loss of piston-to-cylinder clearance and reduced engine performance.
Solution: Adhere to manufacturer's recommendations for oil change intervals and use high-quality, correct-specification engine oil. Ensure proper filtration to keep contaminants out.
Issue: Liner Cracking
Problem: Typically caused by excessive heat, stress, or improper assembly procedures (e.g., incorrect torque). Can lead to coolant leaks and loss of compression.
Solution: Maintain the cooling system in excellent condition, ensuring proper coolant levels and flow. During installation, always follow precise torque specifications for cylinder head bolts and handle liners carefully to avoid stress.
Issue: Pitting and Corrosion
Problem: Occurs due to coolant contamination, improper cooling system maintenance, or using coolant with incorrect specifications (e.g., lack of anti-corrosion additives).
Solution: Use only the manufacturer-recommended coolant, ensure it has proper anti-freeze and anti-corrosion properties, and perform regular coolant system flushes and checks.
Issue: Liner Deformation (Ovalization)
Problem: Can result from engine overheating, lubrication problems, piston wear, or incorrect liner assembly, leading to an improperly shaped cylinder bore.
Solution: Ensure effective cooling and lubrication system maintenance. Address any signs of piston wear promptly. During installation, verify proper liner fitment and seating to prevent uneven stress.
Issue: Coolant or Oil Leakage Around Liner Flange
Problem: Often due to improper seating, damaged seals, foreign material trapped during assembly, or incorrect tightening of cylinder head bolts.
Solution: Thoroughly clean the engine block and liner seating surfaces before installation. Use new, correct-specification seals. Ensure no debris or foreign material is present. Apply correct torque values when tightening.
Issue: Flange Failure
Problem: Caused by uneven mounting surfaces, foreign material trapped under the flange, or incorrect tightening procedures.
Solution: Inspect the cylinder block's liner seating surface for flatness and cleanliness. Ensure proper alignment and apply specified torque evenly across the cylinder head bolts.
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