3TNE68 Cylinder Liner Kit 129904-22121 Piston 119265-22080 Ring 119265-22500 for Yanmar Engine

Product Details

Product Overview

This comprehensive cylinder liner kit is specifically designed for the Yanmar 3TNE68 diesel engine, a powerplant commonly found in compact construction and material handling equipment. The kit includes all critical reciprocating components needed for a complete top-end overhaul: cylinder liners, pistons, and piston rings.

The set comprises three key part numbers: Liner 129904-22121, Piston 119265-22080, and Ring Set 119265-22500. Each component is manufactured to OEM size specifications, ensuring a precise fit within the 3TNE68 engine block. This kit is an ideal solution for restoring engine compression, reducing oil consumption, and eliminating blow-by in high-hour Yanmar engines.

Whether servicing a forklift power unit or rebuilding an excavator engine, this kit provides the essential components for a reliable engine restoration. The parts are engineered to match the original equipment manufacturer’s design parameters for bore, stroke, and ring tension.

Key Features & Benefits

• Complete Overhaul Set: Includes liners, pistons, and rings in one convenient kit, simplifying parts procurement and ensuring matched component compatibility.
• OEM Specification Dimensions: Manufactured to standard OEM size, eliminating the need for oversize machining or custom fitting for standard rebuilds.
• Precision-Machined Liners: Cylinder liners are produced from high-grade cast iron with a refined internal finish for optimal ring seating and oil retention.
• Durable Piston Design: Pistons feature reinforced crown and pin boss areas to withstand the thermal and mechanical stresses of diesel combustion cycles.
• High-Quality Ring Set: The ring pack includes compression and oil control rings designed to maintain proper cylinder sealing and lubrication management.
• Rigorous Quality Control: Each component undergoes dimensional inspection and material verification before shipment, ensuring consistent quality across every kit.
• Cost-Effective Repair: Provides a factory-matched solution at a fraction of the cost of individual OEM part purchases, reducing overall repair expenses.

Technical Specifications

OEM Cross-Reference

This kit directly replaces the following Yanmar genuine part numbers. Please verify your engine serial number for complete compatibility.

• Liner: Yanmar 129904-22121
• Piston: Yanmar 119265-22080
• Ring Set: Yanmar 119265-22500

Compatibility

Engine Model: Yanmar 3TNE68 (TNV series industrial diesel engine)

Common Applications: This engine platform is commonly used for the following equipment types. Fitment is inferred based on the engine model rather than specific vehicle models.

• Forklifts (e.g., Nissan, TCM, Komatsu, Toyota)
• Excavators (mini to mid-size)
• Bulldozers and crawler loaders
• Agricultural tractors
• Industrial generators and pumps
• Skid steer loaders and compact utility vehicles
• Air compressors and other industrial machinery

Global Supply & Distribution

We maintain a robust global supply chain to serve B2B customers in all major industrial markets. Our inventory management system ensures rapid fulfillment for both small workshops and large fleet operators.

• North America: Fast delivery to major ports (Los Angeles, Houston, New York, Vancouver) and inland distribution hubs.
• Europe: Efficient shipping to Rotterdam, Hamburg, Antwerp, and other key logistics centers for quick European distribution.
• Asia-Pacific: Direct service to Japan, South Korea, Australia, and Southeast Asian markets with competitive transit times.
• Middle East & Africa: Reliable shipping to Dubai, Jeddah, and major African ports supporting mining and construction sectors.
• South America: Established routes to Santos, Callao, and Buenos Aires for Latin American industrial clients.

Our export team manages all international trade documentation, including commercial invoices, packing lists, and certificates of origin, ensuring smooth customs clearance worldwide.

Quality Assurance

Every component in this kit is manufactured under strict quality management protocols. Our production facilities comply with international manufacturing standards, and each batch undergoes rigorous inspection before release.

• Material Certification: Raw materials are sourced from certified foundries with documented chemical composition and mechanical property reports.
• Dimensional Accuracy: All components are measured using calibrated instruments to ensure they meet OEM specification tolerances.
• Testing: Machinery test reports and outgoing video inspections are available upon request for quality verification.
• Warranty: Each kit is backed by a 6-month warranty against manufacturing defects in materials and workmanship.
• Traceability: Parts are batch-coded for full traceability from raw material through final inspection.

FAQ

Q: How can I confirm this kit fits my specific Yanmar 3TNE68 engine?
A: Confirm your engine model tag reads “3TNE68” and check the existing part numbers on your current components. The liner should have 129904-22121, piston 119265-22080, and ring set 119265-22500 stamped or etched on them. If your engine uses different numbers, please contact us with your engine serial number for cross-verification.

Q: What is the recommended installation procedure for this liner kit?
A: Installation requires proper engine disassembly and cleaning. Cylinder bores must be free of old gasket material and carbon deposits. Liners should be installed with appropriate sealant at the lower O-ring groove. Pistons must be oriented correctly with the arrow or mark pointing toward the injection pump side. Always use new gaskets and lubricate rings and cylinder walls with clean engine oil during assembly. Torque cylinder head bolts to Yanmar factory specifications in the correct sequence.

Q: Do I need to replace any other components when installing this kit?
A: For a complete and reliable rebuild, we recommend also replacing the cylinder head gasket, valve stem seals, and main bearings/conrod bearings depending on engine hours. While this kit restores the piston-to-cylinder interface, worn bearings or a leaking head gasket can compromise the rebuild. If the engine has over 8,000 hours, a full overhaul kit including bearings and gaskets is advisable.