3TNV80 Valve Guide – OEM Size Diesel Engine Part for Yanmar 3TNV80

Product Details

Product Overview

This high-precision Valve Guide is specifically designed for the Yanmar 3TNV80 diesel engine, a widely used power unit in compact construction equipment, industrial machinery, agricultural tractors, and generator sets. As a critical component of the cylinder head assembly, the valve guide ensures correct valve stem alignment, proper heat dissipation, and optimal combustion chamber sealing.

Manufactured to OEM size specifications, this replacement part offers a direct fit for Yanmar 3TNV80 engines requiring valve guide replacement during a top-end overhaul or head rebuild. While primarily designed for the 3TNV80 model, this component may also be compatible with other Yanmar TNV series engines; we recommend verifying your engine’s specific requirements before purchase.

Key Features & Benefits

• Precision OEM Dimensions: Machined to exact OEM size standards for the 3TNV80, ensuring proper valve stem clearance and eliminating the need for reaming or modification.
• Superior Wear Resistance: Constructed from high-quality cast iron or alloy steel material, providing excellent durability against the high-temperature, high-friction environment of the exhaust and intake valves.
• Optimal Heat Dissipation: Engineered to efficiently transfer heat away from the valve stem into the cylinder head, preventing valve burning and extending engine life.
• Enhanced Engine Performance: Restores proper valve sealing, which improves compression, reduces oil consumption, and ensures smooth engine idle and full power output.
• Direct Replacement Fit: Identical to the original part in form, fit, and function, making installation straightforward for experienced diesel mechanics.
• Stringent Quality Control: Each valve guide undergoes dimensional inspection and material verification to meet industry standards for aftermarket diesel engine parts.

Technical Specifications

OEM Cross-Reference

This valve guide is the direct aftermarket replacement for the following Yanmar original equipment manufacturer (OEM) part numbers:

• Yanmar OEM: 119710-35110 (Primary Reference)
• Yanmar OEM: 119710-35120 (Alternative Reference)

Note: Please verify your existing part number against these references to confirm compatibility. If your engine uses a different OEM number, contact our support team for cross-reference assistance.

Compatibility

This valve guide is specifically designed for use in the following engine models and applications. Fitment is based on manufacturer specifications and common industry usage:

• Engine Models: Yanmar 3TNV80, Yanmar 3TNV82A, Yanmar 3TNV84
• Common Applications:
  • Construction Equipment (Mini Excavators, Skid Steer Loaders, Compact Track Loaders)
  • Industrial Machinery (Forklifts, Generators, Pumps)
  • Agricultural Equipment (Compact Tractors, Tillers)
  • Marine Auxiliary Engines
  • Genset (Generator Set) Power Units

Important Fitment Note: While this part is commonly used for the applications listed above, we strongly recommend consulting your equipment’s service manual or removing the old valve guide for dimensional comparison to ensure a perfect match. Variations may exist between different equipment manufacturers using the same base engine.

Global Supply & Distribution

maintains a robust global supply chain to serve B2B buyers across major industrial markets. Our valve guides and other Yanmar engine components are available for international shipping with competitive lead times:

• Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Japan, South Korea, Australia, Singapore), Middle East (UAE, Saudi Arabia, Qatar), and South America (Brazil, Chile, Argentina).
• Shipping Capabilities: We offer flexible logistics options including express courier (DHL, FedEx, UPS) for urgent orders, air freight for medium-sized shipments, and sea freight (FCL/LCL) for bulk orders to major ports such as Los Angeles, Rotterdam, Hamburg, Shanghai, and Jebel Ali.
• Trade Compliance: All shipments are fully documented with commercial invoices, packing lists, and certificates of origin to ensure smooth customs clearance worldwide.

Quality Assurance

We are committed to providing aftermarket parts that meet or exceed original equipment standards. Our quality control process includes:

• Manufacturing Standards: Parts are produced in ISO 9001-certified facilities with strict adherence to dimensional tolerances.
• Testing Procedures: Each batch undergoes hardness testing, dimensional verification, and visual inspection. A Machinery Test Report is available upon request for qualified buyers.
• Warranty Coverage: We offer a 6-month warranty against manufacturing defects in materials and workmanship. After warranty service includes online technical support to assist with installation and troubleshooting.
• Documentation: Video outgoing inspection can be provided for bulk orders to give you confidence before shipment.

FAQ

Q1: How do I know if this valve guide fits my Yanmar 3TNV80 engine?
A: This part is manufactured to OEM specifications for the Yanmar 3TNV80 engine. To confirm fitment, check the part number on your old valve guide. It should match the OEM references listed above (119710-35110 or 119710-35120). Additionally, you can measure the outside diameter, inside diameter, and overall length of your existing guide. If your engine is a 3TNV80, this part is the correct standard-size replacement. For engines that have been previously rebuilt with oversized valves, a different guide may be required.

Q2: Can I install this valve guide myself, or do I need a professional mechanic?
A: Valve guide replacement is a precision task that requires specialized tools and experience. The process involves removing the cylinder head, pressing out the old guides, and installing new ones with a precise interference fit. After installation, the valve seats must be ground to ensure proper sealing. We strongly recommend that this job be performed by a qualified diesel engine mechanic or machine shop to avoid damage to the cylinder head or improper valve seating.

Q3: How long does a valve guide typically last, and what are signs of failure?
A: Valve guides in a well-maintained Yanmar 3TNV80 engine can last thousands of operating hours. Common signs of worn valve guides include: excessive blue or white smoke from the exhaust (oil burning), increased oil consumption, ticking or tapping noises from the valve train, and poor engine performance or hard starting. If you notice these symptoms, inspect the valve guides during your next service interval. Replacing them as a set during a top-end overhaul is recommended for optimal engine reliability.