Finding the right engine components for compact diesel units requires precision. If you are operating a Z482 or Z602 series engine, ensuring the compatibility of the 16851-21114 piston and its companion 16853-21050 ring set is critical for restoring compression and oil control.
Our inventory focuses on OEM standard replacement parts that meet the rigorous demands of industrial and construction machinery. Whether you are performing a top-end rebuild or a complete engine overhaul, the 16851-21114 (1685121114) piston kit provides the structural integrity needed for high-load cycles.
By utilizing the 16853-21050 (1685321050) piston rings, operators can effectively prevent blow-by and maintain the efficiency of the fuel injection system. These components are designed to fit the 67mm bore specifications perfectly.
Compare the technical specifications for the Z-series engine lineup to ensure the correct part selection for your maintenance project.
| Engine Model | Bore Diameter (mm) | Piston Part Number | Piston Ring Part Number | Piston Pin Size (mm) |
|---|---|---|---|---|
| Z482 | 67 | 16851-21114 | 16853-21050 | 20*50 |
| Z500 | 68 | 15261-21110 | 15271-21050 | 20*50 |
| Z600 | 72 | 15956-21110 | 15901-21050 | 20*54 |
| Z602 | 72 | 15956-21111 | 15901-21050 | 20*54 |
| Z602 (Variant) | 72 | 1J091-21110 | 1J091-21050 | 20*50 |
| Z650 | 76 | 15221-21110 | 15221-21050 | 23*63 |
| Z750 | 76 | 15221-21111 | 15221-21050 | 23*63 |
| Z751 | 76 | 15221-21111 | 15221-21050 | 23*63 |
| Purchasing Criteria | Our OEM Standard Solution | Low-Quality Market Alternatives |
|---|---|---|
| Material Composition | High-silicon aluminum alloy for heat resistance | Recycled aluminum; prone to thermal cracking |
| Dimension Accuracy | Precision CNC machined to 0.01mm tolerance | Varied sizing leading to engine knocking |
| Ring Coating | Chrome plated or Phosphate treated for low friction | No surface treatment; rapid cylinder wear |
| Thermal Expansion | Stable expansion coefficient for tight seals | High expansion; risks piston seizure |
| Certification | ISO 9001 certified manufacturing facility | No quality tracking or certification |
| Support | Full technical verification via part number | General "one size fits all" sales approach |
| Model NO. | Z482 / Z602 Series | Part Number | 16851-21114 / 1685121114 |
|---|---|---|---|
| Product Name | Engine Overhaul Piston & Ring Kit | Condition | Brand New, OEM Standard Replacement |
| Payment Terms | T/T, Western Union, MoneyGram | MOQ | 1 Piece |
| Delivery Methods | DHL, Fedex, EMS, UPS, Air/Sea Freight | Stock Status | In Stock / Fast Dispatch |
| Packaging | Industrial Export Packing | Application | Engine rebuild, overhaul, maintenance |
Q: Why is my Z482 engine experiencing excessive blue smoke?
A: This is often caused by worn 16853-21050 piston rings or cylinder glazed liners. Replacing the ring set can restore the oil scraping function and stop oil consumption.
Q: Can I use the 16851-21114 piston for a Z602 engine?
A: While they share some similarities, you must verify the bore and pin height. Our team uses part number cross-referencing to ensure your Z482 rebuild is 100% accurate.
Why Choose This Overhaul Kit?
Our parts feature an OEM-standard tri-metal structure and are trusted by repair shops and equipment fleets globally for their longevity and reliability in harsh conditions.
Mechanical downtime is costly. Our team helps operators:
Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply
Direct Support Available Now:
WhatsApp: +8613532379052 | [email protected]
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We are a leading provider of comprehensive engine solutions, specializing in high-performance components for international brands. Our core business includes complete engine assemblies and spare parts for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai.
Our catalog features professional-grade Cylinder Liners, Pistons, Piston Rings, Main Bearings, Con-rod Bearings, Thrust Washers, Full Overhaul Gasket Kits, Fuel Injection Pumps, Injectors, Crankshafts, Turbochargers, Water Pumps, Oil Pumps, Cylinder Blocks, Cylinder Heads, and Connecting Rods.
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