4D94E Engine Valve Set In 129100-11100 Ex 129105-15221 for Yanmar Diesel Engine Parts

Product Details

Product Overview

This product listing offers a complete set of high-quality engine valves specifically designed for the Yanmar 4D94E diesel engine. The set includes one intake valve and one exhaust valve, providing a direct replacement solution for engine maintenance and overhaul.

The intake valve is identified by part number 129100-11100, and the exhaust valve is identified by part number 129105-15221. These components are precision-engineered to meet OEM specifications, ensuring a proper fit and reliable performance in demanding applications such as construction, agriculture, industrial machinery, generators, marine equipment, and material handling.

As critical components within the engine cylinder head, these valves control the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases. Using high-quality replacement valves is essential for maintaining engine compression, efficiency, and overall longevity.

Key Features & Benefits

• OEM Specification Fitment: Manufactured to the exact dimensions and material specifications of the original Yanmar parts for a precise, hassle-free installation.
• Durable Construction: Built from high-strength materials designed to withstand the extreme heat and pressure of diesel combustion, ensuring a long service life.
• Complete Valve Set: Includes both the intake (129100-11100) and exhaust (129105-15221) valves, simplifying your parts ordering process.
• Enhanced Engine Performance: Restores proper sealing and gas flow, which is critical for maintaining optimal engine power, fuel efficiency, and reduced emissions.
• Rigorous Quality Control: Each valve undergoes strict inspection to guarantee it meets performance and durability standards before shipment.
• Versatile Application: Suitable for a wide range of Yanmar 4D94E-powered equipment across multiple industries, from construction sites to marine vessels.

Technical Specifications

OEM Cross-Reference

This valve set is designed as a direct replacement for the following original Yanmar part numbers:

• Intake Valve: 129100-11100
• Exhaust Valve: 129105-15221

Please verify your existing part numbers against this list to ensure compatibility before purchase.

Compatibility

This engine valve set is specifically designed for use with the Yanmar 4D94E diesel engine. This engine model is commonly used for powering a wide variety of equipment, including:

• Construction machinery (e.g., mini excavators, compact loaders)
• Agricultural equipment (e.g., tractors, tillers)
• Industrial machinery (e.g., generators, pumps, compressors)
• Marine auxiliary engines
• Material handling equipment (e.g., forklifts)

Note: Compatibility is determined by the specific engine model. We recommend confirming your engine’s model number (4D94E) and the part numbers of the valves you are replacing to ensure a correct fit.

Global Supply & Distribution

We are an experienced exporter of diesel engine parts, based in Guangdong, China. Our strategic location allows for efficient logistics and fast shipping to major ports and industrial centers worldwide.

We serve a diverse range of international markets, including:

• North America: USA, Canada, Mexico
• Europe: Germany, France, UK, Netherlands, Italy, Spain
• Asia-Pacific: Japan, South Korea, Australia, New Zealand, Southeast Asia
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Nigeria
• South America: Brazil, Argentina, Chile, Peru

Our team is experienced in international trade and can handle various shipping requirements, including express couriers (DHL, FedEx, UPS), air freight, and sea freight to best suit your delivery timeline and budget.

Quality Assurance

We are committed to providing high-quality replacement parts that meet rigorous standards. Our quality assurance process includes:

• Manufacturing Standards: Parts are manufactured in ISO-certified facilities, ensuring consistent quality control.
• Material Verification: Raw materials are inspected to confirm they meet required specifications for strength and heat resistance.
• Dimensional Inspection: Each valve is checked for critical dimensions like stem diameter, overall length, and seat angle to guarantee a proper fit.
• Machinery Test Report: A report is available upon request, detailing the testing procedures and results.
• Video Outgoing Inspection: We can provide a video of the final inspection process to give you confidence in your order before shipment.
• Warranty: We offer a 6-month warranty against manufacturing defects, with continued online support after the warranty period.

FAQ

Q1: How can I confirm these valves will fit my engine?

First, locate the engine model plate on your equipment, which is typically stamped on the engine block itself. Confirm it reads “4D94E”. Second, remove the existing valves and check their part numbers. If they match 129100-11100 (intake) and 129105-15221 (exhaust), this set is the correct replacement. If you are unsure, please contact us with your engine model and old part numbers for verification.

Q2: What is the installation process for these valves?

Installation should be performed by a qualified diesel mechanic. The process generally involves removing the cylinder head, using a valve spring compressor to remove the old valves and springs, cleaning the valve guides, applying assembly lube to the new valve stems, installing the new valves, and reassembling the valve springs and keepers. It is highly recommended to replace valve stem seals and check valve clearances (lash) after installation per the Yanmar service manual.

Q3: What maintenance is recommended after installing new valves?

After installation, it is critical to correctly adjust the valve clearance (lash) according to the engine’s service specifications. This ensures proper engine timing and prevents premature wear. During the first few hours of operation, monitor the engine for any unusual noises. We also recommend using high-quality engine oil and replacing the oil and filter according to the manufacturer’s schedule to protect the new valve train components.