Hitachi HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW ZX70 ZX85US-3 ZX75US-3 4446258 CYL;BUCKET SPARKLING MACHINERY
SPARKLING MACHINERY NEW ZX70 ZX85US-3 ZX75US-3 4446258 Bucket Cylinder is a core hydraulic actuator for 3 Hitachi excavator models (construction/mining use). It drives bucket opening, closing, and digging operations, delivering stable force for heavy-load tasks.
Meeting Hitachi OEM standards (4446258), it resists -30°C to 100°C temps, high hydraulic pressure, and wear, ensuring seamless compatibility and long-term reliable bucket control performance.
Your Hitachi excavator’s bucket power and digging precision start here.
Now, we’re proud to present the HITACHI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW ZX70 ZX85US-3 ZX75US-3 4446258 CYL;BUCKET by SPARKLING MACHINERY. Next, we’ll cover its core strengths: 3-model compatibility, stable force output, strict quality, pro support, and cost-effective reliability—helping you maximize your equipment’s digging efficiency.
The SPARKLING MACHINERY NEW 4446258 CYL;BUCKET Photo:
And first—thank you so wholeheartedly, from the bottom of our hearts, for choosing SPARKLING MACHINERY’s 4446258 Bucket Cylinder for your Hitachi ZX70, ZX85US-3, or ZX75US-3 excavator! Your trust fuels our commitment to Hitachi’s strict hydraulic actuator standards.
This bucket cylinder is your excavator’s "digging power core"; a faulty one risks weak digging force, unstable bucket movement, or operational delays. Ours matches Hitachi’s original specs perfectly—you can depend on it fully. Let’s explore why it’s the ideal fit for your machine.
Why choose the SPARKLING NEW ZX70 ZX85US-3 ZX75US-3 4446258 Bucket Cylinder?
- Direct-fit compatibility: Custom-engineered for the 3 Hitachi models’ bucket hydraulic interfaces, mounting lugs, and bolt patterns. Marked 4446258, it aligns seamlessly with existing bucket systems—no modification, adapter use, or hydraulic circuit adjustments. Cuts replacement downtime by 28%, getting your Hitachi excavator back to heavy-duty digging faster.
- Precision control: Features accurate stroke control (deviation <0.8mm from Hitachi’s rated specs) and consistent force output (no sudden pressure drops), strictly adhering to the brand’s hydraulic actuator parameters. Ensures smooth bucket operations—e.g., mining-site material excavation or construction-site earthmoving—to avoid operational inefficiencies or safety risks.
- Rigorous quality: Undergoes 22+ strict tests—high-pressure durability (38MPa for 1,800+ hours without leakage), high-low temperature cycles (-30°C to 100°C, 900+ cycles), wear resistance (12,000+ extend-retract cycles), and rod surface corrosion resistance (1,200+ hours salt spray test). Withstands dusty construction/mining environments, hydraulic shock, and heavy digging loads without cylinder deformation or seal failure.
- Professional support: Backed by a dedicated team with deep expertise in Hitachi ZX-series hydraulic systems. Offers 7×24 online assistance, including step-by-step installation guides (mounting torque charts, hydraulic oil bleeding tips), maintenance recommendations (seal inspection intervals, rod cleaning methods), and troubleshooting for slow bucket movement or oil leakage. Average response time <2 hours.
- Cost-effective reliability: Delivers Hitachi OEM-level hydraulic actuator performance at a competitive price. Reinforced cylinder barrels and high-wear-resistant piston rods extend service life by 58% vs. generic cylinders, reducing long-term replacement costs by 36%. Minimizes unplanned downtime from bucket system failures—preventing costly project delays or equipment damage.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation



🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.





Sparkling Machinery Co.,Ltd
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