The 4255055 valve is an original Hitachi reference part, a track adjuster grease valve used on the undercarriage of hydraulic excavators. It sits on the track adjuster and allows grease to be injected to maintain correct track tension, keeping the undercarriage running smoothly and extending the life of tracks, rollers and idlers. Manufactured from durable metal to OEM specifications, this valve delivers a precise fit, reliable sealing and long service life under heavy field conditions. Customers choose the 4255055 valve from YLCM Parts for its OEM-fit accuracy, strong construction, low cost and dependable supply for mining and construction fleets.
Hitachi EX100-2/3/5, EX120, EX200-2/3/5, EX270, EX400, EX550, ZX series
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 4255055 valve 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 valve is coated with anti-rust oil and wrapped in rust-proof paper, then protected with bubble wrap to prevent scratching. Parts are packed individually in strong export-grade cartons, and heavy or high-value orders are additionally secured in wooden cases with internal cushioning. Every package is clearly labeled with the part number, quantity and shipping marks for easy identification and inspection, ensuring the valve arrives clean, rust-free 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 4255055 valve fit?
The 4255055 is a Hitachi OEM reference track adjuster grease valve commonly used on the EX100-2/3/5, EX120, EX200-2/3/5, EX270, EX400, EX550 and ZX 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 valve made of?
It is manufactured from durable metal to OEM specifications, providing reliable sealing and long service life under heavy field conditions.
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 valve is coated with anti-rust oil, wrapped in rust-proof paper and bubble wrap, and packed individually in an export-grade carton or wooden case for safe 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 4255055, quantity and delivery address to our sales team. We respond with pricing and shipping details within 24 hours.
Installation Guide
Clean the area around the track adjuster and remove the old valve or fitting.
Inspect the threads and sealing surface for damage or dirt before installation.
Screw the new valve into place by hand, then tighten with the correct tool to the specified torque.
Inject grease through the valve and confirm the track adjuster responds and holds pressure correctly.
Check for leaks around the valve before returning the machine to service.
Maintenance Tips
Check track tension regularly and inject grease through the valve to maintain correct adjustment.
Inspect the valve every 500 operating hours for leaks, blockage or damage.
Keep the valve and its surroundings clean to prevent dirt from entering the adjuster.
Replace the valve immediately if it leaks, fails to hold pressure or shows thread wear.
