

The Heating System is an essential climate control component for the Sitrak C7H, providing efficient cabin heating and defrosting capabilities to ensure comfort and safety in cold weather conditions.
This comprehensive kit includes the H-Type Pressure Relief Valve, Heater Engine Outlet Pipe, Heater Engine Return Pipe, Heater Cab Inlet Pipe, Heater Cab Outlet Pipe, Heater Cab Return Pipe, Heater Pressure Relief Valve Return Pipe, Dual Pipe Clamp (Φ18), Spacer Plate, Heater Water Pipe Bracket, Type 2 Full Metal Hexagon Locknuts, Hexagon Flange Bolts M10, Wave Spring Clamps, Hexagon Flange Nuts M10, Large Washer, Hexagon Flange Nuts M6, H-Valve Bracket, Plastic Fastening Tape 7.6×368, Single Pipe Clamp (Φ15), Hexagon Flange Bolts M6, and Hexagon Flange Bolts M8. Each part is engineered to ensure reliable coolant flow and efficient heat transfer.
The Heating System utilizes engine coolant to generate warmth, distributing it through a network of hoses and a heater core inside the cab. The H-type pressure relief valve maintains optimal system pressure, while the various brackets and clamps secure all components for vibration-free operation.
For complete technical specifications and ordering details, please refer to the official Sinotruk Catalog, which provides comprehensive information on all available variants and compatible truck models.
The Heating System is designed for easy installation and long-lasting performance, ensuring that your cab remains warm and comfortable even in freezing temperatures. This Heating System is the ideal choice for owners who demand reliable cabin heating and defrosting.
This precision valve regulates coolant pressure within the heating system, preventing overpressure and ensuring stable flow. It features a spring-loaded diaphragm that opens at a preset pressure of 1.5 bar, protecting hoses and the heater core from damage.
This formed rubber hose carries hot coolant from the engine to the heating system. Reinforced with fabric cord and resistant to temperatures up to 120°C, it ensures efficient heat transfer with minimal pressure drop.
This return hose directs cooled coolant back from the heater core to the engine cooling system. It is designed with a smaller diameter for balanced flow and features a flexible section to absorb engine vibrations.
This pipe delivers hot coolant from the engine bay into the cab, connecting to the heater core inlet. It is insulated to minimize heat loss and features a quick-connect fitting for easy installation.
This outlet pipe carries coolant from the heater core back toward the engine compartment. It is routed along the firewall and secured with clips to prevent chafing and ensure a neat installation.
This return pipe completes the circuit, sending coolant back to the engine after passing through the heater core. It is fitted with a check valve to prevent reverse flow when the engine is off.
This dedicated hose connects the pressure relief valve to the coolant reservoir, allowing excess fluid to return safely. It is made from transparent silicone for visual inspection of flow.
This clamp secures two 18mm diameter hoses together, maintaining proper routing and preventing tangling. It is made of stainless steel with a rubber-lined cushion to absorb vibration and reduce noise.
This flat metal plate acts as a spacer between the heater core and the cab floor, ensuring proper alignment and preventing metal-to-metal contact. It is zinc-plated for corrosion resistance.
This steel bracket mounts the heater pipes to the engine bay firewall, providing a secure anchor point. It features elongated slots for adjustable positioning and is coated with powder paint.
These all-metal locknuts feature a deformed thread that provides prevailing torque to resist loosening under vibration. They are made of steel with a zinc-flake coating for durability.
These M10 hexagon flange bolts are used to secure the heater core and brackets. The integrated flange distributes clamping load evenly, and the bolts are grade 10.9 for high strength.
These spring-loaded clamps provide a secure, leak-proof connection on all coolant hoses. The wavy design maintains constant tension, compensating for thermal expansion and contraction.
These M10 flange nuts are used in conjunction with the M10 bolts, providing a secure fastening with a large bearing surface. They include a nylon locking patch for added security.
This oversized flat washer is used under the head of a bolt to spread the load over a larger area, protecting soft materials. It is made of stainless steel for corrosion resistance.
These M6 flange nuts are used for securing smaller brackets and components. They feature a built-in flange and a nylon insert to prevent loosening from vibration.
This bracket mounts the H-type pressure relief valve to the firewall. It is made of 3mm thick steel with a corrosion-resistant coating and includes rubber isolators to dampen vibration.
This self-locking cable tie is used to bundle and secure hoses and wires. It is 7.6mm wide and 368mm long, with a tensile strength of 80N, and is made of UV-stabilized nylon.
This clamp secures a single 15mm diameter hose to the vehicle structure. It features a rubber cushion to prevent chafing and is made of stainless steel with a quick-release mechanism.
These M6 hexagon flange bolts are used for lighter fastening duties, such as securing clamps and small brackets. They are grade 8.8 and zinc-plated for corrosion resistance.
These M8 hexagon flange bolts provide medium-duty fastening for the main brackets and the heater core. The flange eliminates the need for separate washers and ensures even load distribution.
The Heating System is designed to provide rapid warm-up and even heat distribution throughout the cab. The efficient heater core and optimized hose routing ensure that every part of the cabin reaches a comfortable temperature quickly, even in sub-zero conditions.
The H-type pressure relief valve ensures that the Heating System operates within safe pressure limits, protecting the heater core and hoses from damage. This feature extends the life of the system and prevents costly leaks.
This Heating System kit includes every clamp, bracket, bolt, and fastener needed for a full installation. The wave spring clamps and dual pipe clamps ensure secure connections and proper hose routing, eliminating guesswork and ensuring a professional result.
Every pipe, bracket, and clamp in this Heating System is precisely engineered to fit the Sitrak C7H chassis without modification. The pre-formed hoses and pre-drilled brackets align perfectly with factory mounting points, saving installation time and ensuring a leak-free system.
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