Valve Guide 129150-11810 120130-11860 for Yanmar 3TNV84T Diesel Engine Parts Excavator

Product Details

Product Overview

This premium Valve Guide is a direct replacement component designed for the Yanmar 3TNV84T diesel engine. Manufactured to OEM specifications, this part ensures precise valve stem alignment and optimal heat dissipation within the cylinder head. The valve guide is a critical wear item that directly impacts engine compression, oil consumption, and overall combustion efficiency.

Identified by part numbers 129150-11810 and 120130-11860, this component is commonly utilized in a range of heavy equipment applications including excavators, forklifts, bulldozers, loaders, and trucks. While designed for the 3TNV84T, it may also be compatible with other Yanmar engine variants that share the same cylinder head architecture. We strongly recommend verifying the physical dimensions and part number against your existing component before purchase to ensure a precise fit.

Key Features & Benefits

• OEM Specification Fitment: Manufactured to match the exact dimensions and material composition of the original Yanmar valve guide, ensuring seamless installation without modifications.
• Enhanced Durability: Constructed from high-grade cast iron or alloy steel, providing excellent resistance to wear from valve stem friction and high-temperature exhaust gases.
• Precision Machining: Inner diameter is precision-honed to a strict tolerance, guaranteeing proper valve stem clearance for reduced oil consumption and consistent compression.
• Heat Dissipation: Engineered to efficiently transfer heat away from the valve stem into the cylinder head, preventing valve distortion and premature failure.
• Cost-Effective Solution: Factory-direct pricing offers significant savings compared to OEM dealer parts, without compromising on quality or performance.
• Reliable Sourcing: Each unit undergoes outgoing inspection to verify dimensional accuracy, providing peace of mind for professional mechanics and fleet operators.

Technical Specifications

OEM Cross-Reference

This valve guide is a direct replacement for the following Original Equipment Manufacturer (OEM) part numbers:

• Yanmar: 129150-11810, 120130-11860

Note: This list is based on verified cross-reference data. Always compare the physical part to your original component to confirm compatibility.

Compatibility

This valve guide is commonly used for the following applications:

• Engine Models: Yanmar 3TNV84T, and potentially other 3TNV series engines with shared cylinder head design.
• Vehicle/Equipment Types: Excavators, Trucks, Forklifts, Bulldozers, Buses, Loaders, and other industrial machinery powered by the 3TNV84T diesel engine.

Important: Fitment may vary based on specific equipment manufacturer configurations. We recommend consulting your engine’s service manual for precise part identification.

Global Supply & Distribution

We maintain a robust global supply chain to serve B2B customers across the world. Our stock is strategically warehoused to ensure fast fulfillment for international orders.

• Shipping Capabilities: We ship via air freight (DHL, FedEx, UPS) and sea freight (FCL/LCL) to all major ports.
• Major Markets Served: North America, Europe, Southeast Asia (including Japan and Korea), the Middle East, Africa, and Oceania.
• Fast Delivery: Standard delivery to industrial centers like Los Angeles, Rotterdam, Dubai, and Singapore within 5-15 business days depending on shipping method.
• Trade Compliance: Our products are packaged and documented for smooth customs clearance, with full commercial invoices and packing lists provided.

Quality Assurance

We are committed to delivering parts that meet or exceed OEM performance standards. Our quality process includes:

• Manufacturing Standards: Components are produced in ISO-certified facilities using precision casting and machining processes.
• Inspection: Each batch undergoes outgoing dimensional inspection and material verification. A Machinery Test Report is available upon request.
• Video Support: We can provide a Video Outgoing Inspection of your specific order prior to shipment to confirm quality.
• Warranty: All parts are backed by a 6-month warranty against manufacturing defects.

FAQ

Q1: How do I confirm this valve guide fits my Yanmar 3TNV84T engine?
A: First, locate the existing part number on your old valve guide. If it matches 129150-11810 or 120130-11860, this is the correct part. You can also measure the outer diameter (OD) and length of your current guide. If uncertain, please contact us with your engine serial number and we can assist with verification.

Q2: What is the installation procedure for this valve guide?
A: Installation requires a valve guide driver or press to insert the new guide into the cylinder head. The head must be heated to the manufacturer’s specified temperature (typically around 150-200°C / 300-400°F) to expand the head material. After installation, the guide inner diameter (ID) should be reamed to the correct valve stem clearance (usually 0.02-0.05mm). We recommend this job be performed by a qualified diesel engine technician.

Q3: How often should valve guides be replaced on the 3TNV84T?
A: Valve guide wear is typically assessed during a cylinder head overhaul, which is often performed every 6,000-10,000 hours of operation depending on load and maintenance history. Signs of wear include excessive oil consumption, blue smoke at startup, or valve noise. Always inspect guides when replacing valves or valve seals.