Description
OEM-Quality Komatsu WA500-6R Final Drive Assembly
Maximize rim pull torque, drive traction, and component longevity under aggressive excavation and stockpile loading with a heavy-duty Komatsu WA500-6R Final Drive Assembly. Engineered specifically for Komatsu WA500-6 and WA500-6R (34-tonne operating weight class) wheel loaders, this outboard planetary gear hub converts high-speed axle shaft rotation into low-speed, high-torque output right at the wheel hub.
By utilizing an outboard planetary design, gear stress is evenly distributed across multiple planet gears, preventing axle shaft twisting and protecting drive components from shock loading when penetrating heavy gravel, shot rock, or wet clay.
Key Features & Benefits
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Outboard Planetary Reduction System: Distributes heavy rim torque across multiple planet gears to minimize tooth strain and prolong power train service life.
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Extreme-Load Metallurgy: Carburized and induction-hardened alloy steel sun gears, planet gears, and ring gears withstand continuous cyclic shock loads during bucket loading passes.
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Duo-Cone Mechanical Face Seals: High-retention metal-to-metal face seals keep axle gear oil securely contained while blocking fine silica dust, mud, slurry, and moisture ingress.
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Wet Multi-Disc Brake Integration: Positioned directly adjacent to outboard wet multi-disc brake groups for efficient heat dissipation and responsive stopping control.
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Direct OEM Fitment: Machined to precise Komatsu factory tolerances for direct drop-in replacement on standard WA500-6R front and rear axle housings.
Verified Technical Specifications
| Parameter | Specification |
| Compatible Machine Model | Komatsu WA500-6 / WA500-6R Wheel Loader |
| Operating Weight Class | ~33.7 – 35.0 tonnes (74,300 – 77,100 lbs) |
| Engine Partner Compatibility | Komatsu SAA6D140E-5 Engine (353 HP / 263 kW) |
| Drive System Type | Outboard planetary gear reduction hub |
| Axle Fluid Capacity (Total Axle) | 85 L (22.5 gal) per axle |
| Sealing System | Lifetime Duo-Cone Mechanical Seals |
| Application | Front / Rear Axle Planetary Wheel End Reduction |





