Viscous Fan Clutch 16250-78190 1625078190 For Toyota Dyna/Toyoace & Hino Dutro N04C — OEM Fan Coupling Assembly
| OEM Part Number: | 16250-78190 / 1625078190 | Part Name: | Fan Clutch / Fan Coupling / Viscous Fan Drive |
| Engine Compatibility: | Toyota N04C Diesel; Hino N04C | Vehicle Models: | Toyota Dyna, Toyoace, Hino Dutro, Hino 300 Series |
| Type: | Viscous (Fluid) Fan Clutch | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | Viscous fan clutch for Toyota Dyna,OEM fan coupling assembly for Hino Dutro,Toyota Toyoace viscous fan clutch |
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The Viscous Fan Clutch (Fan Coupling) with OEM number 16250-78190 (also listed as 1625078190) is a verified direct-fit replacement for Toyota Dyna/Toyoace and Hino Dutro/300 Series trucks. This critical engine cooling system component regulates cooling fan speed based on engine temperature, ensuring optimal cooling when needed while reducing parasitic load and improving fuel economy during normal operation.
| Part Number: | 16250-78190, 1625078190 |
| Product Name: | Fan Clutch |
| Car Model: | Toyota Dyna/Toyoace & Hino Dutro |
| Engine Model: | N04C |
| Condition: | 100% Brand New |
| Origin: | China Mainland |
| Main Markets: | Middle East, Asia, Africa, South America, North America & Europe |
If your fan clutch is failing, you may experience one or more of the following symptoms:
- Engine Overheating: Temperature gauge consistently rising above normal, especially at low speeds or idle
- Constant Fan Noise: Loud, roaring fan noise at all times
- Poor Fuel Economy: Noticeable decrease in fuel efficiency
- Fluid Leakage: Visible silicone fluid seeping from the fan clutch
- Rough or Wobbly Fan: Excessive play or wobbling in the fan assembly
| Brand | Model | Engine | Notes |
|---|---|---|---|
| Toyota | Dyna | N04C Diesel | -- |
| Toyota | Toyoace | N04C Diesel | -- |
| Hino | Dutro / 300 Series | N04C Diesel | -- |
Guarantees factory-fit quality and performance
Improves fuel economy and reduces engine load
Provides smooth, progressive engagement
Built for demanding commercial truck operation
No modifications required
Guarantees zero wear and full service life
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to match OE blueprint specifications |
| Engagement Test | 100% temperature response testing |
| Leakage Test | 100% leak testing to guarantee zero silicone fluid leakage |
| Durability Cycle Test | 500+ hour fatigue testing for long-term reliability |
| Final Assembly Inspection | 100% visual and functional inspection |
Pre-Installation Checklist:
- Allow the engine to cool completely before starting work
- Disconnect the negative battery terminal
- Verify fan clutch part number matches your original (16250-78190)
- Inspect the fan blades for cracks or damage
- Check the fan shroud for damage or debris
Installation Guidelines (Reference Toyota/Hino workshop manual):
- Disconnect the negative battery terminal
- Remove the fan shroud if necessary
- Remove the fan assembly from the old fan clutch
- Remove the old fan clutch from the water pump hub
- Clean the water pump hub mounting surface thoroughly
- CRITICAL: Install the new fan clutch and torque to manufacturer's specified torque settings
- Install the fan assembly onto the new fan clutch
- Reinstall the fan shroud
- Reconnect the negative battery terminal
- Start the engine and check for proper fan operation and unusual noises
Maintenance Schedule:
- Inspection: Every 50,000 km / 12 months
- Replacement: Immediately if failure symptoms appear
- Packaging: Each fan clutch is securely packed in protective packaging
- Packaging Options: Neutral Packaging / OEM Brand Packaging
- MOQ: Small quantity accepted; quantity discounts available
- Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners