4TNV98 Cylinder Block 729907-01560 for Yanmar Excavator Diesel Engine

Product Details

Product Overview

This high-quality Cylinder Block (Part Number: 729907-01560) is a direct replacement component engineered specifically for the Yanmar 4TNV98 diesel engine. As the foundational structural core of the engine, this cylinder block provides the rigid housing for the pistons, crankshaft, and connecting rods, ensuring precise alignment and long-term durability.

Manufactured to meet or exceed OEM specifications, this 4TNV98 cylinder block is commonly used in a wide array of heavy machinery, including Yanmar excavators, loaders, bulldozers, and forklifts. It is also suitable for trucks and buses powered by the same engine platform, making it a versatile solution for fleet maintenance and engine rebuilds.

Each unit undergoes rigorous outgoing inspection and is backed by a 6-month warranty, providing peace of mind for B2B buyers and workshop professionals worldwide.

Key Features & Benefits

• OEM Standard Replacement: Directly replaces original Yanmar part number 729907-01560, ensuring a perfect fit and reliable performance without modification.
• Durable Construction: Cast from high-grade iron alloy to withstand extreme combustion pressures and thermal stress, reducing the risk of cracking or warping.
• Precision Machined Surfaces: All deck surfaces, cylinder bores, and main bearing journals are machined to strict OEM tolerances for optimal sealing and oil clearance.
• Complete Structural Integrity: Designed to support the entire rotating assembly and valvetrain, providing a stable foundation for the 4TNV98 engine’s power output.
• Rigorous Quality Control: Each cylinder block is inspected using advanced testing equipment, with a Machinery Test Report and Video Outgoing Inspection available upon request.
• Corrosion Resistant Coating: Features a protective finish to resist rust and corrosion during storage and shipping, ensuring the part arrives in pristine condition.

Technical Specifications

OEM Cross-Reference

This cylinder block is a direct replacement for the following original manufacturer part numbers:

• Yanmar: 729907-01560
• Yanmar (Alternative): 729907-01561 (Check compatibility for superseded versions)

Note: Always verify the casting numbers on your existing block before ordering to ensure exact match.

Compatibility

This cylinder block is specifically designed for the Yanmar 4TNV98 diesel engine platform. It is commonly used for maintenance and rebuilds in the following machinery types:

• Excavators: Yanmar B, VIO, and SV series mini to mid-size excavators.
• Loaders & Bulldozers: Compact track loaders and small dozers utilizing the 4TNV98 engine.
• Forklifts: Industrial and warehouse forklifts (e.g., 3-5 ton capacity models).
• Trucks & Buses: Light-duty commercial vehicles and utility buses powered by the Yanmar 4TNV98.
• Agricultural & Industrial: Generators, pumps, and other stationary equipment.

Fitment is inferred based on the common application of the 4TNV98 engine. Please confirm your engine serial number for complete compatibility.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to B2B customers worldwide. Our stock of the 4TNV98 cylinder block (729907-01560) is ready for immediate shipment.

• Major Markets Served: North America, Europe (EU), Asia-Pacific, Middle East (GCC), South America, and Africa.
• Shipping Capabilities: We offer shipping via sea freight (FCL/LCL), air freight, and express courier (DHL, FedEx, TNT) to meet urgent deadlines.
• Key Destinations: Rapid delivery to major ports and industrial hubs including Rotterdam, Los Angeles, Dubai, Singapore, and Shanghai.
• Export Compliance: All shipments comply with international trade regulations and are professionally packed to prevent damage during transit.

Quality Assurance

Our manufacturing process is focused on delivering components that meet or exceed original equipment standards.

• Certifications: Products are manufactured in ISO 9001 certified facilities with strict quality management systems.
• Testing: Every cylinder block is subject to dimensional inspection, hardness testing, and pressure testing to ensure structural integrity.
• Warranty: This part is covered by a 6-month warranty against manufacturing defects in materials and workmanship.
• Traceability: Each block is marked with batch numbers for full production traceability.

FAQ

Q1: Is this cylinder block a direct bolt-on replacement for my Yanmar 4TNV98 engine?
A: Yes, this part (729907-01560) is manufactured to OEM specifications and is a direct replacement for the original Yanmar cylinder block. However, we recommend comparing the casting numbers on your old block to ensure it is the exact revision required for your specific engine serial number.

Q2: Does this block come with main bearing caps, cylinder liners, or core plugs installed?
A: This listing is for the bare cylinder block casting. It does not typically include main bearing caps, cylinder liners, camshaft bearings, or core/freeze plugs unless specified. Please confirm with our sales team if you require a “short block” assembly with these components pre-installed.

Q3: What is the recommended procedure before installing this new cylinder block?
A: Before installation, we recommend carefully cleaning the block to remove any shipping preservatives. Check all oil galleries for debris, ensure cylinder bores are within service limits, and verify the deck surface flatness using a straightedge. Always use new gaskets and follow the Yanmar service manual’s torque specifications for head bolts and main bearings.