Searching for a reliable 16851-21114 (also known as 1685121114) piston for your engine rebuild? When your Kubota Z482 series equipment starts losing compression or showing excessive blow-by, choosing the right replacement part is the difference between a successful overhaul and a premature failure. We provide OEM-standard pistons specifically designed for the Z482 two-cylinder diesel engine, ensuring thermal stability and precise fitment for industrial, marine, and power generation applications.
| Field | Details |
|---|---|
| Model NO. | Z482 / Z482-B / Z482-E |
| Product Name | Engine Piston / Replacement Piston Kit |
| Part Number | 16851-21114 (1685121114) |
| Type | Internal Combustion Engine Parts |
| Condition | Brand New, OEM Standard Replacement |
| Application | Engine rebuild, overhaul, maintenance |
| Stock Status | In Stock / Fast Dispatch |
| MOQ | 1 Piece |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | DHL, Fedex, EMS, UPS, Air/Sea Freight |
Not all aftermarket pistons are created equal. For a high-RPM compact diesel engine like the Kubota Z482, material density and ring groove precision are critical. Below is a comparison to help procurement managers and repair shops make the right choice.
| Core Procurement Points | Our OEM-Standard Replacement | Low-Tier Aftermarket Parts |
|---|---|---|
| 1. Material Composition | High-silicon aluminum alloy for heat resistance | Standard recycled aluminum (prone to cracking) |
| 2. Weight Balance | Strict tolerance matching for dual cylinders | Varied weights causing engine vibration |
| 3. Surface Treatment | Skirt coating for reduced friction during cold starts | No coating, leads to premature scuffing |
| 4. Ring Groove Precision | CNC machined to exact 16851-21114 specs | Loose tolerances causing oil consumption |
| 5. Pin Hole Alignment | Perfectly centered for smooth connecting rod pivot | Slight offsets causing uneven cylinder wear |
| 6. Service Life | Designed for 5,000+ operational hours | Unpredictable failure points |
Our technical team helps operators and fleet managers solve complex engine issues:
✔ Identify potential risks during maintenance (e.g., piston crown erosion)
✔ Recommend suitable replacement parts if needed based on serial numbers
✔ Support both inspection advice and parts supply for global shipping
White smoke often indicates low compression or unburnt fuel. For the Z482, this is frequently caused by worn piston rings or a damaged 16851-21114 piston crown. Inspect the cylinder walls for scoring; if damage is present, a full piston replacement is necessary to restore the compression ratio.
While possible, it is highly recommended to replace both. Engine balance in small diesel units is sensitive. Using a new 16851-21114 piston alongside an old one can create weight imbalance, leading to crankshaft stress and vibration.
Our replacement features an OEM-standard tri-metal structure and is Trusted by repair shops & equipment fleets worldwide for its durability in harsh operating conditions.
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