Yanmar 3TNA72 Cylinder Liner 127510-22490 | 72mm Bore Diesel Engine Spare Part

Product Details

Product Overview

This high-precision Yanmar Cylinder Liner (Part No. 127510-22490) is a critical replacement component specifically designed for the Yanmar 3TNA72 diesel engine. Manufactured to meet or exceed OEM specifications, this liner ensures a perfect seal between the piston and cylinder wall, restoring compression, reducing oil consumption, and maximizing engine power output.

We are a leading global supplier of heavy-duty engine components, serving a vast network of distributors, repair shops, and equipment owners. Our stock is readily available for immediate shipment to major industrial hubs across North America, Europe, Southeast Asia, the Middle East, and Africa.

Key Features & Benefits

• OEM-Grade Quality: Precision machined to match the exact dimensions and tolerances of the original Yanmar part (127510-22490).
• Superior Durability: Constructed from high-strength, wear-resistant cast iron with a hardened internal surface to withstand extreme combustion pressures and temperatures.
• Optimized Performance: Restores cylinder compression, reduces blow-by gases, and improves overall fuel efficiency of your 3TNA72 engine.
• Anti-Friction Design: Precision honed cross-hatch pattern ensures rapid ring seating and optimal oil retention for reduced friction and longer engine life.
• Corrosion Protection: Treated with anti-rust coating to ensure long shelf life and protection during storage and transport.

Technical Specifications

OEM Cross-Reference

This cylinder liner directly replaces the following original Yanmar part numbers:

• Yanmar OEM: 127510-22490
• Yanmar OEM: 127510-22491 (Superseded/Cross Reference)

Note: Always verify your engine model and existing part number for compatibility. This part is specifically for the 3TNA72 engine.

Compatibility

This cylinder liner is specifically designed for use in the following engine and applications:

• Engine: Yanmar 3TNA72 (3-cylinder, 72mm bore diesel engine)
• Common Applications: Yanmar industrial engines, generators, compact tractors, and marine auxiliary engines utilizing the 3TNA72 power unit.
• Fitment Note: Typically used during a complete engine overhaul. It is recommended to replace all three cylinder liners, pistons, rings, and bearings as a set for optimal performance.

Global Supply & Distribution

We are a dedicated exporter of high-quality engine parts, offering efficient logistics to support B2B procurement worldwide.

• Worldwide Shipping: We ship to all major continents including North America, South America, Europe, Asia-Pacific, the Middle East, and Africa.
• Fast Delivery: Standard stock items are dispatched within 24-48 hours. Express shipping (DHL, FedEx, UPS) is available for urgent orders to major ports and industrial centers.
• Bulk Orders: Competitive wholesale pricing available for volume purchases and long-term supply agreements.
• Trade Compliance: We ensure all documentation for customs clearance is accurate and compliant with international trade regulations.

Quality Assurance

• Manufacturing Standard: ISO 9001:2015 certified production facility.
• 100% Inspection: Each cylinder liner is inspected for dimensional accuracy, hardness, and surface finish before packaging.
• Warranty: Backed by a comprehensive 12-month warranty against manufacturing defects.
• Testing: Parts undergo rigorous pressure and wear testing to ensure they meet the high demands of industrial and agricultural applications.

FAQ

Q1: Is this cylinder liner a direct replacement for the original Yanmar part?
A1: Yes, this part (127510-22490) is manufactured to match the exact OEM specifications for the Yanmar 3TNA72 engine. It is a direct drop-in replacement. We recommend verifying the markings on your old liner to ensure a perfect match.

Q2: What is the recommended installation procedure for this dry-type liner?
A2: For a dry-type liner like this, the cylinder bore must be thoroughly cleaned and free of burrs. Apply a light coat of clean engine oil to the outside of the liner and the inside of the block bore. The liner should slide in easily by hand or with very light pressure. Do not force it. After installation, verify the liner protrusion above the block deck to ensure correct cylinder head gasket sealing.

Q3: Do I need to replace the piston rings at the same time?
A3: Yes, we strongly recommend replacing the piston rings, pistons, and connecting rod bearings simultaneously when installing a new cylinder liner. Using old rings on a new liner surface will prevent proper break-in and can lead to premature wear and oil consumption. For best results, purchase a full overhaul gasket set and piston ring set for the 3TNA72 engine.