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Product Details
Product Overview
This high-quality piston kit is specifically designed for the Yanmar 3TNC78 diesel engine, a model commonly used in compact excavators, tractors, and generators. The kit includes a precision-engineered piston with a 74mm height, wrist pin, and circlips, providing a complete replacement solution for engine overhauls.
Manufactured under the OEM reference number 119811-22080, this piston kit ensures a direct fit and reliable performance for your Yanmar 3TNC78 power unit. It is a 100% brand new component, built to restore compression and power output in your diesel engine.
Key Features & Benefits
Precision Fit: Engineered to exact OEM specifications (119811-22080) for the Yanmar 3TNC78 engine, ensuring a hassle-free installation and optimal seal.
Durable Construction: Made from high-grade aluminum alloy with a coated skirt, reducing friction and wear for extended engine life.
Complete Kit: Includes the piston, wrist pin (23x62mm), and circlips, providing all necessary components for a single-cylinder rebuild.
Reliable Performance: Designed to withstand high combustion pressures and temperatures typical of diesel engines in heavy machinery.
Tested Quality: Each kit undergoes outgoing inspection and is backed by a machinery test report, ensuring consistent quality and performance.
Technical Specifications
Specification
Detail
Part Number
119811-22080
Engine Model
Yanmar 3TNC78
Product Type
Piston Kit (with Pin & Circlips)
Piston Height
74 mm
Wrist Pin Size
23 x 62 mm
Ring Groove Size
2.0mm x 1.5mm x 4.0mm
Combustion Chamber
42 mm
Material
Aluminum Alloy / Coated Skirt
Condition
100% Brand New
Weight
1 kg
OEM Cross-Reference
This piston kit is a direct replacement for the following OEM part numbers:
Yanmar: 119811-22080
Alternate Reference: 119811-22080 (Primary)
Note: Always verify your engine’s specific part number before ordering. This part is designed for the Yanmar 3TNC78 engine.
Compatibility
This piston kit is commonly used for the following applications:
Engine: Yanmar 3TNC78 (Diesel)
Equipment: Mini Excavators, Compact Tractors, Generators, and other industrial machinery powered by the 3TNC78 engine.
Fitment is inferred based on the engine model. Please confirm your engine serial number to ensure compatibility.
Global Supply & Distribution
We offer worldwide shipping from our distribution hub in Guangdong, China. Our logistics network ensures fast and reliable delivery to major industrial centers across:
North America: Los Angeles, Houston, Chicago, Toronto
Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
Asia-Pacific: Singapore, Sydney, Tokyo, Shanghai
Middle East: Dubai, Jeddah, Doha
Africa & South America: Major ports with regular sailings
We have extensive export experience and comply with international trade standards to ensure smooth customs clearance for B2B buyers.
Quality Assurance
Our piston kits are manufactured in a facility that adheres to strict quality control standards. Each unit is 100% brand new and undergoes the following checks:
Outgoing Video Inspection: Available upon request to verify product condition before shipment.
Machinery Test Report: Provided to confirm dimensional accuracy and material integrity.
Warranty: Backed by a 6-month to 1-year warranty against manufacturing defects, giving you peace of mind for your engine rebuild.
FAQ
Q1: Is this piston kit a direct fit for my Yanmar 3TNC78 engine?
A: Yes, this kit is specifically designed for the Yanmar 3TNC78 diesel engine. It matches the OEM specifications (part number 119811-22080) for piston height, wrist pin size (23x62mm), and ring groove dimensions. We recommend verifying your engine’s serial number to confirm the exact specification.
Q2: What is included in the kit, and do I need to purchase additional parts?
A: The kit includes one piston, one wrist pin, and two circlips. For a complete engine overhaul, you may also need piston rings, cylinder liners, and gaskets, which are sold separately. We recommend replacing piston rings simultaneously for optimal performance.
Q3: What is the recommended installation procedure for this piston?
A: Installation should be performed by a qualified diesel mechanic. Ensure the cylinder bore is clean and within service limits. Lubricate the piston skirt and wrist pin with clean engine oil before assembly. Use a piston ring compressor to install the assembly into the cylinder. Torque all connecting rod bolts to the manufacturer’s specifications to prevent engine damage.
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