The Thermostat is the core of the thermal management system in your HOWO MAX 4X2 tractor. Genuine howo Parts ensure that this device maintains optimal engine temperature. This detailed catalogue presents the original unit along with all related sealing, housing, and mounting elements. Every component listed below is manufactured to withstand extreme loads and harsh operating conditions. A reliable cooling regulator avoids overheating and ensures consistent power delivery.
From the cast housing to high-performance O-rings and flange bolts, each element works in harmony with the main valve. Below we explore every essential part that completes the genuine assembly for HOWO MAX 4X2 trucks.
The housing is a robust enclosure that directly mounts the valve and coolant passages. Made from high-pressure die-cast aluminum alloy, it resists corrosion and thermal fatigue.
This component ensures perfect alignment with the engine block and seals tightly against coolant leaks. Precision machining guarantees free movement even after thousands of operation hours.
For HOWO MAX 4X2, the housing integrates sensor ports and bypass channels, enhancing thermal responsiveness. Replacing a worn housing restores original cooling efficiency.
This plugged pipe is engineered for coolant rerouting in the cooling circuit. Its DN32 diameter matches the flow rate required for consistent temperature stabilization under heavy loads.
The pipe features a sealed plug design that prevents debris ingress and allows modular coolant distribution. It connects directly to the radiator return line, supporting the valve’s opening/closing cycles.
Manufactured from galvanized steel with anti-rust coating, this auxiliary part provides long service life even in high-humidity environments. Proper installation eliminates bypass leakage.
This EPDM70 O-ring creates a leak-proof seal between the housing and the engine face. A high-quality sealing element, it withstands extreme temperature swings (-40°C to 150°C).
The elastomer compound resists coolant additives and ozone cracking, maintaining elasticity over years of service. A single damaged ring can cause major coolant loss, so always use original specifications.
This sealing component complies with ISO 3601-1 class Q, delivering tight sealing for the cavity.
The gasket sits between the two halves of the assembly, preventing external weeping. Made from high-density fiber reinforced with nitrile rubber, it provides perfect compression.
This part compensates for minor surface irregularities and resists extrusion under high pressure. It is a direct-fit replacement for the original HOWO MAX cooling pack.
During service, always renew this gasket to avoid recurrent disassembly. Its thermal stability matches the operating range of heavy-duty diesel engines.
This long M8x130mm flange bolt secures the housing to the cylinder head with high clamping force. Property class 10.9 ensures superior tensile strength for the mounting.
The integrated flange distributes pressure evenly, preventing gasket distortion. MAN183 coating provides outstanding corrosion resistance for underhood environments.
Accurate torque application of this bolt guarantees consistent sealing load, eliminating coolant micro-leaks around the mounting area.
Used for mid-section mounting points, the M8x90 flange bolt attaches the bracket and auxiliary lines. Its 10.9 rating withstands repeated thermal cycles without relaxation.
Precision rolled threads reduce friction during installation, ensuring consistent torque retention. The hexagonal head allows easy access with standard tools in tight engine bays.
Each bolt is magnetic particle inspected to avoid latent cracks, providing maximum reliability for the fixing system.
The shortest flange bolt (M8x65) attaches the cover to the main body and secures additional pipe brackets. Compact but strong, it supports dynamic loads from engine vibration.
Surface treatment meets MAN183 standard, passing 720h salt spray test. This bolt completes the mounting set for a trouble-free assembly.
Reusing old bolts may result in inaccurate clamping; replacement with genuine fasteners is recommended for every service.
Thermostat – Complete cooling control unit for HOWO MAX 4X2
| Material Encoding | Name |
|---|---|
| 200V06404-0083 | Thermostat housing |
| 200V98182-0003 | Plugged pipe Diameter 40 / DN32, for coolant |
| MQ6-56939-0079 | O-ring 57X4.5-EPDM70-Q/ZZ 11066 |
| 201V06904-0042 | Thermostat housing sealing gasket |
| MQ6-03216-8320 | Hexagon bolt with flange Q186 – M8X130 – 10.9 – MAN183 – B1 |
| MQ6-03216-8316 | Hexagon bolt with flange Q186 – M8X90 – 10.9 – MAN183 – B1 |
| MQ6-03216-8313 | Hexagon bolt with flange Q186 – M8X65 – 10.9 – MAN183 – B1 |
Each unit is factory-calibrated to open at exactly 82°C, maintaining ideal engine thermal balance. Consistent coolant flow from this device reduces thermal shock and improves fuel economy by up to 5%.
Our Thermostat uses a high-sensitivity wax element that responds instantly to temperature changes, avoiding overheating spikes during long hauls.
All parts, from the housing to flange bolts, are manufactured using original HOWO tooling standards. Perfect fitment eliminates aftermarket modifications and reduces downtime.
We guarantee 100% compatibility of our assembly with MAX 4X2 cooling system, validated through dynamometer tests under full load conditions.
OEM-quality assembly at competitive pricing reduces long-term maintenance costs. Extended service interval means fewer part replacements over the truck’s lifecycle.
Our corrosion-resistant materials and premium EPDM seals ensure leak-free operation up to 500,000 km.
Fast shipping worldwide from regional warehouses. Every order includes technical datasheets and torque specs for hassle-free installation.
Our dedicated support team provides remote guidance, and the warranty covers manufacturing defects for 12 months.
The Thermostat for HOWO MAX 4X2 is not a simple valve; it is an integrated system working with the radiator, water pump, and fan. A high-performance unit reduces engine wear and CO2 emissions. Always choose a genuine Thermostat for maximum durability.
When selecting replacement components, always opt for the complete kit including the housing, gaskets, flange bolts, and sealing O-rings. Our genuine set eliminates mismatched parts and premature failures. A reliable cooling regulator keeps your engine safe.
Professional fleet owners trust this genuine device because each bolt and gasket is designed to work as a unit. To maximize the lifespan, follow the recommended coolant replacement intervals and use only nitrite-free antifreeze. A well-maintained assembly delivers years of service.
Furthermore, the housing’s smooth flow channels reduce cavitation and pressure loss, directly benefiting water pump longevity. Upgrading your aging regulator can restore original factory cooling margins and improve cabin heater performance. A new Thermostat is a smart investment.
Every part and its fasteners undergo 100% final inspection. The hexagon flange bolts meet DIN/ISO standards, and the elastomers are tested for permanent compression set. With a genuine Thermostat, your HOWO MAX 4X2 stays on the road longer. Trust only a verified component.
Additionally, the plugging pipe (DN32) features a precision-formed sealing bead that mates perfectly with the coolant hose. This detail avoids annoying leaks that could lead to overheating. A well-maintained assembly provides peace of mind for cross-country transport. Choose our Thermostat for excellence.
To conclude, the Thermostat is the guardian of your engine’s thermal profile. By choosing our verified HOWO spare parts, you benefit from a fail-safe cooling strategy. Order the complete set today and feel the difference in performance and durability. A premium Thermostat ensures your truck runs cool and strong.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
