714-07-05012 7140705012 Wheel Loader Transmission Gasket Kit NBR Fiber Steel for WA320-3 WA380-3 Overhaul WA450-3A-TN WA400-3A

1. Quick Details of  seal 714-07-05012:

2. 714-07-05012 parts on group :

3. 714-07-05012 picture:

4. Service part number :

5. FAQ

Q1: Which wheel loader models does 714-07-05012 gasket kit fit, and what transmission parts does it cover?
A1: This professional gasket kit is designed for Komatsu medium-sized wheel loaders, specifically compatible with WA320-3, WA350-3, WA380-3, WA470-3 series and other equivalent models. It is a full transmission overhaul kit that covers the torque converter, gearbox, clutch housing, and hydraulic control valve mating surfaces. It includes all necessary gaskets, O-rings, metal shims, and sealing rings for a complete transmission disassembly and reassembly. It’s also suitable for aftermarket loaders with the same transmission structure, ensuring reliable sealing for construction and loading operations.

Q2: What materials are used in this kit, and how do they perform under transmission oil and high torque?
A2: Each component uses high-performance materials tailored for transmission conditions. Main gaskets are compressed fiber bonded with NBR rubber—resistant to ATF transmission oil, high compression, and torque vibration, preventing oil leakage under 20MPa pressure. O-rings are NBR70, offering excellent elasticity and oil resistance for dynamic and static sealing. FKM sealing rings handle high-temperature oil (up to 130°C) at critical joints, resisting aging and chemical corrosion. Stainless steel shims provide rigid support, maintaining precise clearance under bolt torque and preventing deformation. Together, they ensure stable sealing during long-hour loader operation.

Q3: Can you describe the color, shape, and package details of this gasket kit? Any special features?
A3: The kit has distinct components with clear identification. Main fiber gaskets are light gray with precise laser-cut holes and a smooth surface for tight fitting. NBR O-rings are black in various sizes for different ports and grooves. FKM rings are brown with a glossy, heat-resistant surface. Stainless steel shims are silver, thin and flat with aligned mounting holes. All parts are neatly arranged in a transparent, oil-proof plastic tray inside a labeled cardboard box. The label clearly marks the part number, compatible loader models, material specs, and installation instructions for easy use. A unique feature is the pre-cut alignment tabs on gaskets, ensuring quick and accurate installation.

Q4: What is the pressure rating, temperature range, and service life of this transmission gasket kit?
A4: Built for heavy-duty loader transmissions, this kit handles a maximum working pressure of 25MPa, matching the torque converter’s operating pressure. It operates reliably in temperatures from -30°C to +130°C, adapting to cold startup in winter and heat generated by continuous loading. Under normal 8-hour daily use, the service life is 4,000–6,000 working hours. In harsh conditions like heavy-load quarrying or 24/7 operation, it lasts 2,500–3,500 hours—longer than standard kits due to reinforced fiber-rubber composite and high-grade FKM seals.

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