3D84-1 Engine Gasket Kit | YM729354-92600 729354-92600 129350-01331 for Yanmar Diesel Engines

Product Details

Product Overview

This high-performance Engine Gasket Kit, identified by part numbers YM729354-92600, 729354-92600, and 129350-01331, is specifically designed for the Yanmar 3D84-1 diesel engine. As a critical component for engine overhaul and maintenance, this gasket set ensures a complete seal between the engine block, cylinder head, and other mating surfaces, preventing leaks of oil, coolant, and combustion gases.

Manufactured to OEM specifications, this kit provides the precise fit and durability required for demanding applications in construction, agriculture, industrial machinery, marine, and generator sets. Each gasket within the kit is crafted from high-quality materials to withstand extreme temperatures and pressures, ensuring long service life and reliable engine performance. Whether you are performing a routine top-end rebuild or a complete engine overhaul, this gasket kit is an essential part for restoring your Yanmar engine to peak operating condition.

Key Features & Benefits

• Complete Overhaul Solution: Contains all necessary gaskets and seals for a full engine reseal on the Yanmar 3D84-1, eliminating the need to source individual components.
• OEM Specification Fitment: Engineered to match original dimensions and material specifications, guaranteeing a precise, leak-free seal and hassle-free installation.
• Durable Material Construction: Manufactured using high-grade materials, including multi-layer steel (MLS) for head gaskets and reinforced rubber for oil seals, to resist wear and thermal stress.
• Enhanced Engine Reliability: Prevents oil, coolant, and compression leaks, which protects internal components from damage and maintains optimal engine compression and efficiency.
• Versatile Application: Suitable for a wide range of equipment powered by the 3D84-1 engine, including excavators, tractors, generators, and marine vessels.
• Rigorous Quality Control: Each kit undergoes strict inspection to ensure all components meet factory tolerances, providing confidence in fit and function.
• Cost-Effective Maintenance: Offers a significant cost saving compared to purchasing individual genuine OEM gaskets, without compromising on quality.

Technical Specifications

OEM Cross-Reference

This gasket kit is a direct replacement for the following original Yanmar part numbers and their equivalent cross-references:

• Yanmar OEM: YM729354-92600
• Yanmar OEM (Alternative): 729354-92600
• Yanmar OEM (Alternative): 129350-01331

Note: This kit is designed as a service part to replace the original Yanmar components. Always verify your old part number against the list above to ensure compatibility.

Compatibility

This engine gasket kit is specifically designed for the Yanmar 3D84-1 diesel engine. Based on this engine model, it is commonly used for maintenance and repair in the following applications:

• Construction Equipment: Mini excavators, compact track loaders, and skid steer loaders (e.g., Yanmar B series, John Deere, Kubota equivalents using this engine).
• Agricultural Machinery: Tractors, tillers, and harvesters.
• Industrial Equipment: Generators (Gensets), air compressors, and pumps.
• Marine Applications: Small to medium-sized marine engines and auxiliary power units.
• Material Handling: Forklifts and telehandlers.

Important Fitment Note: This kit is designed for the 3D84-1 engine block. It is the buyer’s responsibility to confirm engine model and serial number before purchase to guarantee correct fitment.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to industrial buyers worldwide. Our logistics network supports efficient shipping to all major markets:

• North America: Regular shipments to the USA, Canada, and Mexico via sea and air freight to major ports like Los Angeles, Houston, and Vancouver.
• Europe: Fast delivery to the UK, Germany, France, Netherlands, and other EU countries through Rotterdam, Hamburg, and other key ports.
• Asia-Pacific: Direct shipping to Japan, South Korea, Australia, and Southeast Asian nations (Singapore, Thailand, Indonesia).
• Middle East & Africa: Service to UAE (Dubai), Saudi Arabia, South Africa, and Nigeria.
• South America: Export to Brazil, Argentina, and Chile.

We offer flexible shipping options including DDP (Delivered Duty Paid), FOB, CIF, and EXW. Our export team ensures all documentation (Bill of Lading, Commercial Invoice, Packing List, Certificate of Origin) is compliant with international trade regulations.

Quality Assurance

At, quality is our priority. This engine gasket kit is manufactured under strict ISO-compliant production processes to guarantee reliability and performance.

• Manufacturing Standards: Produced in a state-of-the-art facility in Guangdong, China, using precision tooling and high-grade raw materials.
• Testing & Inspection: Each kit undergoes a dimensional and visual inspection. A Machinery Test Report and Video Outgoing Inspection are available upon request to verify quality before shipment.
• Warranty: All kits come with a standard 6-month warranty against manufacturing defects. After-warranty service includes online technical support to assist with any installation or performance issues.

FAQ

Q1: How can I confirm this gasket kit will fit my Yanmar 3D84-1 engine?
A: To ensure a correct fit, please check the part number on your old gasket or engine service manual. The primary reference numbers for this kit are YM729354-92600, 729354-92600, and 129350-01331. We also recommend verifying your engine’s serial number against the 3D84-1 model specification. If you have any doubts, please contact our support team with your engine details for cross-verification.

Q2: What is included in this full engine gasket kit?
A: This is a full upper gasket set designed for a top-end overhaul. It typically includes the cylinder head gasket, valve cover gasket, intake and exhaust manifold gaskets, fuel injection pump gasket, and various O-rings and seals required for the 3D84-1 engine. Please note that it does not include lower engine seals (like rear main seal) or timing cover gaskets unless specified. For a complete list of contents, please contact us.

Q3: What is the recommended installation procedure for this gasket kit?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Thoroughly clean all mating surfaces to remove old gasket material. 2) Follow the manufacturer’s torque specifications and tightening sequence for the cylinder head bolts. 3) Apply a thin layer of high-temperature sealant to specific areas as indicated in the service manual (e.g., corners of the timing case). 4) Do not reuse old bolts, especially head bolts, as they may have stretched. Always refer to the Yanmar 3D84-1 service manual for exact procedures.