Zirconia Ceramic Plunger for Diesel Injector Valves
Innovacera zirconia ceramic plungers were made by zirconia which have exceptional corrosion resistance, durability, achieve high-precision tolerances (up to ±0.005mm) and superior surface finishes, these properties help ceramic plungers to improve the diesel fuel injectors using efficiency.
Innovacera’s zirconia plungers are installed in diesel injector valves across engines like the QSM11 and ISM11 models, using the widely recognized model 3411711. For repair and replacement, customers can request the 3411711 model. Additionally, Innovacera manufactures custom plunger solutions, including versions for the N14 and L20 injector models, tailored to meet specific industry needs.
Zirconia Ceramic Plunger for Diesel Fuel Pump Injectors
Earlier ISX diesel engines used zirconia ceramic plunger rods in their fuel pumps. Innovacera’s ceramic plunger rods and sleeves are compatible with engines like the QSl9 and CCR1600 3973228 injector pumps, often referred to by model number 4088593. This model is widely applied in diesel engine fuel pumps. We also offer custom solutions for new research and development projects.
Zirconia Ceramic Plungers Advantages
1.Exceptional strength and durability
2.High resistance to corrosion and cracking
3.Excellent wear resistance
4.Low thermal conductivity
5.High fracture toughness and thermal expansion
6.Superior dimensional accuracy and surface finish
Zirconia Ceramic Material Properties
| Technical Parameter | Technical Item | Unit | Value |
| Physical Properties | Major Content | % | ZrO₂+HfO₂: 94.65% |
| Density | g/cm³ | ≥6.0 | |
| Water Absorption | % | 0.00 | |
| Mechanical Properties | Hardness | HV | 1,400.00 |
| Bending Strength | Kgf/mm² | 11.00 | |
| Compressive Strength | Kgf/mm² | 25.00 | |
| Temperature Properties | Thermal Expansion Coefficient (0–1000℃) | 10⁻⁶/K | 9.5 x 10⁻⁶ |
| Thermal Shock Resistance | ℃ | 360.00 | |
| Thermal Conductivity | W/m·K | 3.00 | |
| Volume Resistance Rate (20℃) | Ω·cm | >10¹² |
For inquiries or to request a specific model, please reach out to Innovacera with the model number, or explore our custom solutions to meet your unique requirements.
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Frequently Asked Questions
Looking for a replacement zirconia ceramic plunger supplier? How do 3411711 and 4088593 models prevent fuel injector wear?
Under ultra-high common-rail injection pressures, conventional metal plungers suffer from severe scuffing, fuel cavitation erosion, and seizure. INNOVACERA supplies OEM-replacement zirconia ceramic plungers—including popular models 3411711 (for QSM11/ISM11) and 4088593 (for ISX/QSL9). Engineered with 1400 HV hardness, tight tolerances up to ±0.005 mm, and a thermal expansion coefficient (9.5 × 10⁻⁶/K) closely matching steel sleeves, our ceramic plungers eliminate barrel sticking, prevent high-pressure fuel bypass, and dramatically extend injector operational life.
Need custom ceramic plungers for heavy-duty diesel injection systems? Can you manufacture rods and sleeves to our R&D specifications?
Yes. INNOVACERA manufactures custom zirconia plunger rods and matching sleeves for specialized diesel platforms such as N14 and L20 injector models. We provide precision cylindrical grinding (Ra < 0.05 µm) and tight clearance matching according to your CAD drawings, ensuring leak-free performance and exceptional fracture toughness in ceramic-to-steel assemblies for high-pressure diesel fuel pumps.
