4D84-2A Camshaft 129402-14580 for Yanmar Diesel Engines Excavator Parts

Product Details

Product Overview

This premium replacement camshaft, identified by part number 129402-14580, is engineered specifically for Yanmar 4D84-2A diesel engines. As a critical component of the valve train, this camshaft controls the precise opening and closing of intake and exhaust valves, directly influencing engine performance, fuel efficiency, and emissions compliance.

Commonly utilized in a range of heavy machinery including excavators, bulldozers, forklifts, loaders, trucks, and buses, this part is manufactured to OEM size specifications. It is an ideal direct replacement for worn or damaged camshafts, ensuring reliable operation and extended service life in demanding construction, agricultural, and industrial applications.

Key Features & Benefits

• Precision Engineering: Manufactured to match OEM specifications (OEM Size) for the Yanmar 4D84-2A engine, ensuring a direct bolt-on fit without modifications.
• Durable Construction: Built from high-strength materials to withstand the high rotational speeds and cyclic loads within a diesel engine, reducing wear and extending component life.
• Optimized Valve Timing: Precisely ground cam lobes ensure accurate valve timing, which is critical for maintaining engine power output, torque, and fuel economy.
• Enhanced Reliability: A vital upgrade for engines experiencing reduced performance, rough idling, or excessive valve train noise, restoring factory-level operation.
• Rigorous Testing: Each unit is backed by a Machinery Test Report and a Video Outgoing Inspection, providing verifiable quality assurance before shipment.
• Global Compatibility: Designed for the widely used Yanmar 4D84-2A diesel engine platform, making it a versatile spare part for global heavy equipment fleets.

Technical Specifications

OEM Cross-Reference

This camshaft is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• 129402-14580 (Primary Yanmar Number)
• 129402-14581 (Alternative/Updated Yanmar Number)
• 129402-14590 (Potential Alternative)

Note: Always verify your engine’s specific part number before ordering. Cross-reference numbers are provided as a guide.

Compatibility

This camshaft is specifically designed for the following engine and applications:

• Engine: Yanmar 4D84-2A (Diesel)
• Common Applications:
  • Excavators (e.g., Yanmar B series, mini excavators)
  • Bulldozers
  • Forklifts
  • Wheel Loaders
  • Agricultural Tractors
  • Trucks & Buses (with 4D84-2A engine)

Disclaimer: This part is commonly used for the listed applications. Please confirm your specific engine model (4D84-2A) and existing part number to ensure complete compatibility.

Global Supply & Distribution

We offer worldwide shipping and efficient logistics to support international B2B buyers. Our distribution network ensures fast delivery to major ports and industrial centers across all key markets:

• North America: USA, Canada, Mexico (via Los Angeles, Houston, New York, Vancouver).
• Europe: Germany, UK, France, Netherlands, Poland, Italy (via Rotterdam, Hamburg, Antwerp).
• Asia-Pacific: Japan, South Korea, Australia, Singapore, Indonesia (via Singapore, Sydney, Tokyo).
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Nigeria (via Dubai, Johannesburg).
• South America: Brazil, Chile, Argentina (via Santos, Buenos Aires).

We have extensive experience in international trade, managing customs documentation and compliance for smooth importation. Bulk orders and consolidated shipping options are available to reduce per-unit freight costs for dealers and fleet operators.

Quality Assurance

Every camshaft undergoes strict quality control procedures to ensure it meets industry standards. Our commitment to quality includes:

• Manufacturing Standard: Produced in ISO-certified facilities in Guangzhou, China, using advanced CNC machining and heat-treatment processes.
• Testing: Each unit is subject to dimensional inspection, hardness testing, and surface finish verification. A Machinery Test Report is provided for every order.
• Inspection:Video Outgoing Inspection is available upon request, allowing you to visually verify the part before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your investment.

FAQ

Q: How can I confirm this camshaft will fit my Yanmar engine?
A: First, verify that your engine model is a Yanmar 4D84-2A. Second, locate the existing camshaft part number on your old part (often stamped on the shaft end or journal). Compare it to our OEM cross-reference list, specifically 129402-14580, 129402-14581, or 129402-14590. If your number matches, this part is a direct replacement.

Q: What are the signs of a failing camshaft in a 4D84-2A engine?
A: Common symptoms include a noticeable loss of engine power and fuel efficiency, rough idling or misfiring, loud tapping or clicking noises from the valve cover area, and potential backfiring through the intake or exhaust. If you observe these issues, inspect the camshaft lobes for wear or scoring. Replacing a worn camshaft can restore engine performance.

Q: Do I need to replace any other parts when installing a new camshaft?
A: Yes, it is highly recommended to replace the following parts during camshaft installation to ensure longevity and prevent premature failure: camshaft bearings (if applicable), valve lifters/tappets, and the timing belt or chain (along with tensioners). Always use new gaskets and seals for the timing cover and valve cover. Proper lubrication of the camshaft lobes and journals during installation is critical.