4D84 Valve Guide 129130-13215 for Yanmar Engine Parts – OEM Size Diesel

Product Details

Product Overview

This is a premium replacement Valve Guide for the Yanmar 4D84 diesel engine, carrying the critical OEM part number 129130-13215. As a precision engine component, the valve guide ensures proper valve stem alignment and heat dissipation within the cylinder head. Specifically designed for the 4D84 model, this part is a direct OEM-size replacement, ensuring a perfect fit without modifications.

While the Yanmar 4D84 is a known workhorse in compact construction machinery, industrial generators, and agricultural equipment, this valve guide is engineered to meet or exceed the original equipment specifications. It is a vital component for maintaining compression, reducing oil consumption, and preventing premature valve stem wear in high-hour diesel engines.

Key Features & Benefits

• OEM Reference Number: Direct cross-reference to Yanmar part number 129130-13215, ensuring accurate identification and fit for the 4D84 engine.
• OEM Size Precision: Manufactured to exact original dimensions, eliminating the need for oversized machining or custom fitting during installation.
• Durability & Heat Resistance: Constructed from high-grade, wear-resistant material designed to withstand the extreme temperatures and friction within a diesel engine’s cylinder head.
• Reduced Oil Consumption: A properly sealed valve guide minimizes oil leakage past the valve stem, helping to maintain clean combustion and reduce blue smoke emissions.
• Extended Engine Life: By stabilizing the valve stem, this part prevents uneven wear on the valve seat and stem, contributing to longer intervals between top-end overhauls.
• Rigorous Quality Control: Each unit undergoes dimensional inspection to guarantee concentricity and surface finish, ensuring consistent performance.

Technical Specifications

OEM Cross-Reference

This valve guide is a direct replacement for the following OEM number(s):

• Yanmar: 129130-13215

Note: This part is designed as a direct OEM replacement. Please verify your engine’s specific serial number and valve guide dimensions to ensure compatibility.

Compatibility

This valve guide is specifically designed for the Yanmar 4D84 diesel engine. This engine is commonly used for powering the following types of equipment:

• Construction: Mini excavators, compact track loaders, and small backhoes.
• Industrial: Generators, air compressors, and pumps.
• Agriculture: Small tractors, tillers, and harvesters.
• Marine: Auxiliary power units and small marine generators.
• Handling: Forklifts and material handling equipment.

Always confirm your specific engine model and serial number before purchase.

Global Supply & Distribution

We provide efficient global logistics for B2B buyers. Our stock is strategically located to ensure fast shipping to major industrial hubs worldwide.

• North America: Express shipping to Los Angeles, Houston, Chicago, and Toronto.
• Europe: Fast delivery to Rotterdam, Hamburg, Antwerp, and major inland depots.
• Asia-Pacific: Direct service to Singapore, Dubai, Sydney, and major Chinese ports (Shenzhen, Shanghai, Ningbo).
• Middle East & Africa: Reliable shipping to Jebel Ali (Dubai), Jeddah, and Durban.

We handle all export documentation and customs clearance support for international trade compliance.

Quality Assurance

• Inspection: All parts are subject to a Machinery Test Report and Video Outgoing Inspection to verify dimensional accuracy.
• Standards: Manufactured in an ISO-compliant facility in Guangdong, China, focusing on precision engineering.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Support:After Warranty Service: Online technical support is available to assist with fitment and troubleshooting.

FAQ

Q1: Is this valve guide a direct drop-in replacement for the Yanmar 4D84?

Yes, this part (129130-13215) is manufactured to the exact OEM dimensions for the 4D84 engine. It is a standard-size guide and does not require reaming or machining for installation, provided the cylinder head bore is in good condition.

Q2: What are the common signs that the valve guides on my 4D84 need replacement?

Typical symptoms include excessive blue smoke from the exhaust upon startup or deceleration, high oil consumption without visible external leaks, and poor engine idle stability. A worn guide allows oil to travel down the valve stem into the combustion chamber.

Q3: What is the recommended installation procedure for this valve guide?

Installation should be performed by a qualified diesel mechanic. The old guide should be pressed out from the combustion side. The new guide should be coated with clean engine oil and pressed in from the top of the cylinder head until it reaches the correct installed height. A valve guide driver tool is recommended to avoid damage. Always replace valve stem seals simultaneously.