The 707-99-56240 Service Kit is a comprehensive hydraulic cylinder seal repair solution, specifically designed for Komatsu D375A-6 and D155A-3 bulldozer blade lift cylinders. This complete kit contains all necessary sealing components — including O-rings, back-up rings, wear rings, piston rings, rod packing, buffer rings, and dust seals — all precision-engineered to OEM specifications.
PU (Polyurethane), NBR (Nitrile Rubber), SPCC (Steel)
Condition
Brand New – Genuine
Warranty
6 Months
Packaging
Standard Export Carton
Availability
Generally in stock
Features & Benefits
Genuine Komatsu-compatible blade lift cylinder service kit
Complete sealing solution for blade lift cylinder repair
Includes all necessary seals, O-rings, back-up rings, wear rings, and piston rings in one convenient kit
Contents include: O-rings (various sizes), back-up rings, wear rings, piston ring, rod packing, buffer ring, dust seal
Made from high-quality PU (Polyurethane), NBR (Nitrile Rubber), and SPCC (Steel) materials for durability and reliable sealing performance
Precision-engineered to OEM specifications for perfect fit
Helps prevent hydraulic fluid leaks and extend cylinder service life
Reduces maintenance downtime with all components included in one kit
Compatible Machine
This service kit is compatible with the following Komatsu bulldozer models:
Komatsu D375A-6
Komatsu D155A-3
May also be compatible with D475ASD series (please verify)
This kit is designed for the blade lift cylinder on these machines.
If you‘re unsure whether this kit matches your machine, simply provide your machine serial number (PIN) or the original part number, and our technical team will verify compatibility before shipment.
Applications
The Komatsu 707-99-56240 blade lift cylinder service kit is used in heavy equipment operations where hydraulic cylinder maintenance is required, including:
Bulldozer blade lift cylinder repairs
Construction site equipment maintenance
Mining operations
Earthmoving and land clearing
Quarry operations
Heavy equipment hydraulic system servicing
Its complete set of sealing components makes it an essential repair kit for maintaining Komatsu dozer hydraulic systems.
Why Choose YLCM？
YLCM specializes in supplying genuine Komatsu parts, complete machines, and high-quality aftermarket components to customers worldwide.
We provide:
Genuine Komatsu-compatible seal kits and spare parts
OEM and high-quality aftermarket components
Competitive factory-direct pricing
Fast worldwide delivery
Professional export packaging
Technical support before and after sales
Extensive export experience serving customers in Russia, Southeast Asia, the Middle East, Africa, and South America
In addition to seal kits, we also supply hydraulic parts, undercarriage parts, engine components, electrical parts, filters, and a full range of Komatsu replacement parts.
Packaging & Shipping Every seal kit is professionally packed to ensure safe international transportation.
Packaging options include:
PP bag inside with export carton outer packaging
Heavy-duty wooden crate (for bulk orders)
Moisture-proof protection
Sea freight
Railway transportation
Express courier (DHL, FedEx, UPS)
Multimodal logistics solutions
Each kit is securely packaged to minimize transportation risks and ensure arrival in excellent condition.
Request a Quote Looking for the 707-99-56240 SERVICE KIT for Komatsu D375A-6/D155A-3？
Contact YLCM today to receive：
Latest quotation
Delivery lead time
Packing details
Shipping solution
Technical support
OEM part verification
Our experienced sales team will respond promptly with a competitive quotation and professional service tailored to your project requirements.
Frequently Asked Questions
Q: Is this a genuine Komatsu part？ A: We supply high-quality Komatsu-compatible seal kits. In addition, we also offer genuine Komatsu parts and OEM-spec components to meet diverse customer needs and budget requirements. Please contact us if you have a specific preference, and we will be happy to assist.
Q: What components are included in this kit？ A: This service kit includes a complete set of sealing components for the blade lift cylinder, including multiple O-rings (various sizes), back-up rings, wear rings, a piston ring, rod packing, a buffer ring, and a dust seal.
Q: How do I confirm this part is correct for my machine？ A: To ensure perfect compatibility, please provide your machine serial number (S/N) or the original part number to our team. We will verify the match for you promptly.
Q: What is the warranty on this product？ A: This product comes with a standard 6-month warranty against manufacturing defects.
Q: What is the typical shipping time？ A: This item is generally in stock. The final lead time will be confirmed when we provide your official quote, based on your destination and shipping method preference.
