4251766/4251766XXXH3 Seal Dust for Hitachi Excavator EX1200
The 4251766 dust seal is an original Hitachi reference part (SEAL;DUST) used at the pivot joints of large hydraulic excavators. Its job is to keep dirt, dust, water and debris out of the pin and bushing area, protecting the joint from abrasive wear and premature failure. Manufactured from durable rubber to OEM specifications, this seal fits the original groove precisely and delivers reliable sealing over long service intervals. Customers choose the 4251766 dust seal from YLCM Parts for its exact OEM fit, consistent quality, low cost and dependable supply for mining and construction fleets.
Hitachi EX1100 / EX1200 series (confirm against your parts list)
Condition
New (Genuine / Aftermarket)
Origin
China
Warranty
6 months
Applications
Suitable for: Mining, Quarry, Construction, Heavy Earthmoving, Large Infrastructure Projects.
Why Choose Us
20+ Years Experience
Founded by professionals with more than two decades in construction machinery supply chains, YLCM Parts knows exactly what separates a genuine part from a substandard one. This experience means accurate part identification, honest compatibility advice and reliable sourcing on every order.
Large Warehouse
We maintain a large, well-stocked warehouse with thousands of commonly requested spare parts ready for immediate dispatch. High-demand items such as the 4251766 dust seal are kept in stock, so most orders ship within days rather than weeks.
Fast Delivery
In-stock parts are shipped within 3–7 working days after payment, and urgent orders can be coordinated for priority dispatch. With reliable sea and air freight partners, we deliver to mining and construction customers worldwide with tracking throughout.
Genuine & OEM Parts
We work directly with verified OEM and aftermarket manufacturers in China, Japan, Russia and the USA, eliminating middlemen. Every part is inspected before shipment and backed by our standard warranty for full peace of mind.
Export to 60+ Countries
Trusted by mining, construction and repair professionals in more than 60 countries, we handle international packing, documentation and customs requirements so your parts arrive smoothly at the destination.
Professional Technical Support
Our consultants help you confirm the correct part number for your machine model and serial number. We answer quotes and technical questions within 24 hours and support you through ordering, shipping and after-sales.
Packaging
Each dust seal is packed individually to prevent deformation, scratching and contamination. The seal is placed in a protective bag, wrapped with bubble wrap for cushioning, and shipped in a strong export-grade carton. Rubber seals are stored away from direct sunlight and heat to preserve elasticity, ensuring the part arrives clean, flexible and ready to install by both sea and air transport.
Shipping
We offer flexible sea and air freight options to suit your schedule and budget. Sea freight is a cost-effective choice for bulk orders and larger consignments, with regular sailings to major ports worldwide; air freight is recommended for urgent orders and delivers fast. In-stock parts ship within 3–7 working days after payment, and we provide full tracking and shipping documentation. Our team also handles export documentation, packing lists and customs paperwork to ensure smooth delivery to your site.
FAQ
Q1: Which Hitachi machines does the 4251766 dust seal fit?
The 4251766 is a Hitachi OEM reference dust seal commonly used on the EX1100 and EX1200 series excavators. Please verify against your machine’s parts catalog or send us your serial number for confirmation.
Q2: Is this a genuine or aftermarket part?
Both options are available. Tell us your preference when requesting a quote and we will confirm availability and pricing.
Q3: What material is this dust seal made of?
It is manufactured from durable rubber to OEM specifications, providing reliable dust and water sealing at the pivot joints over long service intervals.
Q4: What is the delivery time?
In-stock items are shipped within 3–7 working days after payment. Scarce or customized items take 15–30 working days and will be confirmed at quotation.
Q5: How is the part packed for shipping?
Each seal is packed individually in a protective bag with bubble wrap, then shipped in an export-grade carton to prevent deformation and damage during sea or air transport.
Q6: Do you provide a warranty?
Yes. We provide a 6-month warranty covering quality problems not caused by human damage.
Q7: How do I get an accurate quote?
Send the part number 4251766, quantity and delivery address to our sales team. We respond with pricing and shipping details within 24 hours.
Installation Guide
Clean the seal groove and remove any old seal residue, dirt or debris before installation.
Inspect the groove and surrounding surfaces for wear or scoring; repair or replace worn parts if needed.
Fit the new seal carefully into the groove by hand, avoiding twisting, stretching or tearing.
Ensure the seal is fully seated and evenly positioned around the entire groove.
Lubricate the joint with the recommended grease and check that the pin rotates freely.
Maintenance Tips
Inspect the dust seals every 500 operating hours; check for cracks, deformation or missing sections.
Replace the seal immediately if it is cut, hardened or no longer sealing to prevent dirt ingress.
Re-grease all pivot joints at the recommended intervals to support the sealing function.
Check for water or mud ingress around the joint and clean it during routine service.
