The 421-33-31331 Piston is a precision-engineered hydraulic cylinder component specifically designed for Komatsu WA470 and WA480 wheel loaders. Manufactured from premium-grade materials and produced to OEM specifications, it provides excellent sealing performance, reliable force transmission, and outstanding durability under heavy-load operating conditions. Its high-strength construction helps reduce internal wear, improve hydraulic efficiency, and ensure long-lasting performance in demanding construction, mining, and material handling applications.
Provides reliable combustion support and stable engine performance under heavy-duty conditions
Surface Treatment / Protection
Precision machined surfaces with wear-resistant treatment
Dimensions & Structure
OEM standard configuration
Function / Installation Position
Engine cylinder piston position
Operating Conditions
Heavy-duty diesel engine operation
Compatible Models
WA480, WA470
System
Engine combustion system
Weight
4.27 kg
Packaging
Industrial carton + foam protection
Lead Time
30–90 days
Shipping Method
Sea / Air / Land
Payment Method
USD / RMB / RUB
Warranty
6 months
Features & Benefits
Precision-engineered piston designed for Komatsu WA470 and WA480 wheel loaders
Manufactured from premium high-strength alloy steel for superior durability and wear resistance
Precision-machined to OEM specifications for accurate fit and reliable hydraulic performance
Provides excellent sealing efficiency for smooth and stable hydraulic system operation
High resistance to pressure, abrasion, and heavy-duty working conditions
Helps improve hydraulic cylinder efficiency and extend component service life
Direct replacement for the original Komatsu piston with easy installation
Backed by a 6-month warranty
Compatible Machine
Part Number: 421-33-31331
This piston is compatible with:
Komatsu WA470 Wheel Loader
Komatsu WA480 Wheel Loader
If you’re unsure whether 421-33-31331 Piston is compatible with your machine, simply provide your machine serial number (PIN) or parts catalog information, and our technical team will verify compatibility before shipment.
Applications
The 421-33-31331 Piston is a key hydraulic cylinder component designed to provide reliable force transmission and efficient hydraulic operation. It is widely used in demanding applications, including:
Quarry operations
Mining sites
Aggregate production
Heavy material handling
Earthmoving projects
Infrastructure construction
Industrial loading operations
Its robust construction ensures dependable hydraulic performance, minimizes internal wear, and contributes to longer service intervals in heavy-duty environments.
Why Choose YLCM?
YLCM specializes in supplying genuine, OEM, and premium aftermarket replacement parts for Komatsu, Caterpillar, Cummins, Hitachi, Volvo, and other leading construction machinery brands.
We provide:
Genuine, OEM, and high-quality aftermarket Komatsu parts
Competitive factory-direct pricing
Strict quality inspection before shipment
Fast worldwide delivery
Professional export packaging
Technical support before and after sales
Extensive international export experience
One-stop sourcing for engine, hydraulic, transmission, electrical, and undercarriage components
In addition to hydraulic pistons, we also supply hydraulic cylinders, seal kits, pumps, valves, engine parts, transmission components, filters, bearings, and a complete range of Komatsu replacement parts.
Packaging & Shipping
Every 421-33-31331 Piston is professionally packaged to ensure safe international transportation.
Packaging options include:
Export-standard carton packaging
Reinforced wooden crate (available upon request)
Moisture-proof and anti-corrosion protection
Sea freight
Air freight
Express courier services
Multimodal logistics solutions
Each shipment is securely packaged to minimize transportation risks and ensure the product arrives in excellent condition.
Request a Quote
Looking for the 421-33-31331 Piston for Komatsu WA470 / WA480?
Contact YLCM today to receive:
Latest quotation
Stock availability
Delivery lead time
Packing details
Shipping solutions
OEM part verification
Professional technical support
Our experienced sales team will respond promptly with competitive pricing and professional service tailored to your equipment maintenance and spare parts requirements.
