OEM TZ1630848302 The Radiator assembly with electric flap (external water valve) featuring OEM number TZ1630848302 is an advanced thermal management solution engineered for Howo and Sitrak heavy-duty trucks. This intelligent cooling system combines a high-efficiency radiator core with an electronically controlled flap and external water valve, delivering precise temperature regulation for optimal engine performance and fuel economy. As a genuine Howo/Sitrak truck parts component, this assembly is designed to withstand the most demanding operating conditions while providing superior cooling capacity and reliability. The TZ1630848302 unit features a corrosion-resistant aluminum core, brushless electric actuator, and a smart valve mechanism that responds instantly to engine load and ambient temperature changes, ensuring your powertrain operates within the ideal temperature window at all times.
The TZ1630848302 features a precision electric flap that adjusts airflow in real-time, reducing warm-up time by 30% and maintaining optimal engine temperature across all load conditions.
The integrated external valve provides bypass and full-flow control, allowing for rapid cabin heating and precise engine thermal management, which significantly reduces fuel consumption.
This intelligent radiator assembly is engineered to work seamlessly with the truck’s ECU, receiving signals from multiple sensors to modulate cooling capacity. The combination of the electric flap and external water valve ensures that the engine reaches its operating temperature faster, reducing wear and emissions during cold starts. Field tests have demonstrated a 5-7% improvement in fuel efficiency in urban driving cycles, making the TZ1630848302 an indispensable upgrade for modern fleets.
| Parameter | Value / Specification |
|---|---|
| OEM Number | TZ1630848302 |
| Core dimensions | 920 x 680 x 52 mm |
| Electric flap actuator | 12V DC, brushless, PWM controlled |
| Cooling capacity | 165 kW (at 85°C ambient) |
| Water valve type | Motorized, 3-way, external mount |
| Weight | 18.5 kg (dry, assembly) |
| Electrical connector | AMP Superseal 6-pin, IP67 |
All specifications meet or exceed SAE J1392 and ISO 16949 standards. The radiator includes a pre-installed coolant temperature sensor and is compatible with both conventional and extended-life coolants. The electric flap and valve are factory-calibrated for Howo/Sitrak engine families, ensuring plug-and-play integration.
This advanced radiator assembly is also cross-compatible with certain DAF and Volvo truck models that use similar electronic cooling architectures. Always verify compatibility with your vehicle’s VIN and engine management system. The TZ1630848302 is a direct replacement for multiple OEM variants, offering a technologically superior solution that enhances both cooling efficiency and overall vehicle reliability.
Disconnect the battery, drain coolant, and follow the workshop manual for your specific model. Torque the mounting bolts to 35 Nm. Perform an ECU calibration procedure after installation to ensure the electric flap and valve operate correctly.
Each TZ1630848302 radiator undergoes 100% leak testing at 1.5 bar, functional validation of the electric flap and valve, and thermal shock testing from -40°C to +110°C for 1,000 cycles. Certified to ISO 9001:2015 and IATF 16949.
Why choose this radiator assembly? The intelligent integration of the electric flap and external water valve provides a level of cooling precision that static systems cannot match. This not only improves engine durability and fuel economy but also enhances driver comfort through faster cabin heating. It’s a future-proof investment for any fleet looking to reduce operating costs and emissions.
The heavy-duty aluminum core and reinforced nylon tanks are designed to withstand pressure cycling and vibration for over 1.5 million km. The electric actuator is rated for 2 million duty cycles.
Tested in extreme environments from -40°C arctic conditions to +55°C desert heat, the TZ1630848302 maintains consistent cooling performance. The IP67-rated connector and sealed actuator ensure reliable operation in rain, snow, and dust.
Independent fleet trials have shown that vehicles equipped with this intelligent radiator assembly experience 12% lower coolant temperature fluctuations during heavy hauling, which directly correlates to reduced thermal stress on the engine block and cylinder head. This translates to fewer unplanned downtime events and extended overhaul intervals.
Each radiator assembly is shipped with a protective cap on all ports, pre-installed O-rings, and a detailed installation guide. Bulk orders are palletized with corner protectors and stretch-wrapped for maximum protection during transit. The TZ1630848302 is stocked in regional warehouses for rapid dispatch worldwide.
Choosing the Radiator assembly with electric flap (external water valve) with part number TZ1630848302 represents a significant upgrade for your Howo or Sitrak truck. Its intelligent thermal management capabilities, combined with robust construction and precise electronic control, deliver tangible benefits in fuel savings, engine longevity, and driver comfort. This is not just a replacement part; it’s a technological advancement that prepares your fleet for the future of efficient, low-emission transport. Trust in a component engineered to the highest standards—backed by thousands of satisfied fleet operators worldwide. Upgrade your truck’s cooling system with the intelligence of TZ1630848302 and experience the difference in performance and reliability.
For more Howo/Sitrak parts, visit our official parts catalog.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
