4TNV98C Cylinder Head Assembly 129E00-11720 for Yanmar Engine Parts Construction Agriculture

Product Details

Product Overview

This 4TNV98C Cylinder Head Assembly (Part Number: 129E00-11720) is a precision-engineered replacement component specifically designed for the Yanmar 4TNV98C diesel engine platform. Manufactured by, this assembly is a direct OEM-size replacement, ensuring a seamless fit for a wide range of heavy-duty applications.

As the core component of the engine’s combustion chamber, this cylinder head assembly is critical for maintaining compression, sealing, and overall engine performance. It is commonly used in construction machinery, agricultural equipment, industrial generators, marine vessels, and material handling equipment that utilize the reliable Yanmar 4TNV98C engine. This part is an ideal solution for maintenance, repair, and overhaul (MRO) operations requiring a durable, high-quality cylinder head.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM specifications (OEM Size), ensuring exact fitment and performance characteristics for the Yanmar 4TNV98C engine.
• Direct Replacement: Designed as a complete assembly, simplifying installation and reducing downtime for service technicians and fleet managers.
• Robust Construction: Built with high-grade materials to withstand the high temperatures and pressures of diesel combustion, offering long service life in demanding industrial environments.
• Enhanced Reliability: Provides a critical seal for the combustion chamber, helping to maintain optimal compression ratios, reduce blow-by, and improve fuel efficiency.
• Versatile Application: Suitable for a broad range of sectors including construction, agriculture, power generation, and marine, making it a versatile stock item for parts distributors.
• Secure Packaging: Shipped in a multi-layer protective packing system (plastic bag, box, carton) to prevent damage during transit.

Technical Specifications

OEM Cross-Reference

This Cylinder Head Assembly is a direct aftermarket replacement for the following genuine Yanmar part numbers:

• 129E00-11720 (Primary OEM Number)
• 129000-11720 (Alternative OEM Reference)

Note: Always verify your existing part number against the list above to ensure compatibility.

Compatibility

This assembly is specifically designed for the Yanmar 4TNV98C diesel engine. It is commonly used for maintenance and repair in the following equipment categories:

• Construction Machinery: Mini excavators, compact track loaders, skid steer loaders.
• Agricultural Equipment: Tractors, harvesters, tillers, and sprayers.
• Industrial Applications: Generators (Gensets), air compressors, and pumps.
• Marine: Auxiliary engines and small vessel propulsion systems.
• Material Handling: Forklifts and telehandlers.

Global Supply & Distribution

We offer worldwide shipping capabilities to support international B2B buyers. Our logistics network ensures fast and reliable delivery to major industrial centers and ports across North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.

With extensive export experience, we handle all necessary trade documentation and compliance for smooth customs clearance. Whether you need a single unit for a critical repair or bulk orders for a large fleet, we are equipped to meet your supply chain demands efficiently.

Quality Assurance

Every cylinder head assembly is manufactured under strict quality control processes. We provide a Video Outgoing Inspection and a Machinery Test Report with each unit to confirm dimensional accuracy and performance standards. This product comes with a 6-month warranty against manufacturing defects, with continued online technical support available after the warranty period.

FAQ

Q: Is this cylinder head assembly a direct bolt-on for my Yanmar 4TNV98C engine?
A: Yes, this assembly is manufactured to OEM specifications (OEM Size). It is designed as a direct bolt-on replacement for the Yanmar 4TNV98C engine. However, we recommend comparing your old part number (129E00-11720 or 129000-11720) to confirm compatibility before installation.

Q: Does this assembly come with valves, springs, and camshafts installed?
A: This product is a “Cylinder Head Assembly,” which typically includes the core cylinder head casting. It is best to confirm the exact contents of the assembly (valves, seats, guides, etc.) with our sales team before purchasing to ensure you have all necessary components for your rebuild.

Q: What is the recommended procedure before installing this new cylinder head?
A: Before installation, ensure the engine block deck is clean and flat. Always use a new head gasket and new cylinder head bolts (stretch bolts). Tighten the head bolts in the manufacturer’s specified sequence and torque values to prevent warpage or failure. We recommend consulting a Yanmar service manual for the precise specifications for the 4TNV98C engine.