3d84-2 piston price

The 3d84-2 piston is a critical component for Yanmar diesel engines. You must verify the bore diameter (typically 84mm), the compression height, and the piston pin diameter. Ensure the piston is made from high-strength aluminum alloy with a heat-resistant combustion chamber (anodized top) to withstand high thermal loads. Always confirm if the price includes the piston rings, pins, and circlips, as these are often sold as a complete kit.

Prioritize suppliers who utilize gravity casting or forging processes rather than simple die-casting. Check for surface treatments such as tin plating or graphite coating on the piston skirt, which reduces friction and prevents 'scuffing' during the initial break-in period. Request material composition reports and ensure the product meets ISO/TS 16949 quality management standards for automotive and engine components.

The 3d84-2 piston is widely used in excavators, forklifts, and agricultural tractors (e.g., Komatsu or Yanmar equipment). Before purchasing, provide the supplier with the engine serial number or the OEM part number to avoid compatibility issues. Distinguish between naturally aspirated and turbocharged versions, as the piston crown design and ring groove reinforcements (such as Alfin inserts) may differ significantly.

The biggest risks are material non-compliance and dimensional inaccuracies. Even a 0.01mm deviation can lead to engine failure. To mitigate this, use Made-in-China.com's Secured Trading Service to ensure payment is only released after proof of shipment. Always request a pre-shipment inspection report or a video of a micrometer measurement of the actual batch being sent.

Piston pricing is highly sensitive to raw material (aluminum) market rates. For bulk orders (over 100 sets), negotiate for a 15-20% discount compared to sample prices. If you are a repair shop with low volume, look for suppliers on Made-in-China.com who offer 'Ready-to-Ship' inventory with lower MOQs (e.g., 3-5 sets) to reduce your warehousing costs.

Pistons are dense and heavy; for small batches, air express (DHL/FedEx) is fast but expensive. For larger stock replenishment, LCL (Less than Container Load) sea freight is more economical. Ensure the supplier uses VCI (Volatile Corrosion Inhibitor) packaging or anti-rust oil and reinforced wooden crates to prevent moisture damage and physical deformation during long-transit maritime shipping.