

The ECU Mount Assembly is a dedicated mounting system designed to securely fasten the Engine Control Unit (ECU) to the chassis of the Sitrak C7H. This precision-engineered bracket kit ensures that the ECU remains stable, protected from vibration, and correctly positioned for reliable electrical connections and cooling airflow.
This complete ECU Mount Assembly kit includes the Rubber Cushion, Hexagon Flange Bolt Q186-M8X40-MAN222-MK8X4-10.9-MAN183-B1, and ECU Bracket. Every component is manufactured to OEM specifications, guaranteeing a perfect fit and durable performance in the demanding environment of heavy-duty truck operation.
The ECU Mount Assembly is designed to isolate the sensitive electronic control unit from road shocks and engine vibrations, which are common in commercial vehicles. The rubber cushions absorb high-frequency oscillations, while the steel bracket provides a rigid mounting platform. This combination ensures that the ECU’s internal components and solder joints are protected from fatigue failure, extending the service life of the electronic control system.
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 for the ECU Mount Assembly.
Whether you are replacing a damaged bracket or performing a complete electronic control system upgrade, this ECU Mount Assembly delivers factory-quality components and a straightforward installation. This ECU Mount Assembly is the definitive choice for operators who demand reliable ECU protection and long-term electronic system integrity.
The importance of a properly mounted ECU cannot be overstated. The ECU is the brain of the engine management system, controlling fuel injection, timing, emissions, and many other critical functions. Any movement or excessive vibration can lead to intermittent connections, signal errors, or even permanent damage to the circuit boards. This ECU Mount Assembly has been engineered to meet the strict vibration and thermal requirements of the C7H, ensuring that your engine control unit remains securely in place under all operating conditions.
The Rubber Cushion is a critical vibration-damping element of the ECU Mount Assembly. It is made from high-quality EPDM rubber with a specific Shore hardness to absorb and dissipate road-induced vibrations and engine oscillations. This cushion is positioned between the ECU bracket and the chassis mounting points, effectively isolating the electronic control unit from harmful high-frequency vibrations that could compromise its sensitive internal components and solder joints.
Each cushion is precision-molded to ensure consistent damping characteristics and a perfect fit within the assembly. The material is resistant to oil, grease, and extreme temperatures, ensuring long-term reliability in the harsh under-hood environment of the Sitrak C7H. By using these rubber cushions, the ECU Mount Assembly significantly reduces the risk of electronic failures caused by mechanical stress, contributing to the overall dependability of the vehicle’s engine management system.
This high-strength bolt is the primary fastener used to secure the ECU bracket to the vehicle chassis. It features a hexagon flange head that provides a larger bearing surface, eliminating the need for a separate washer and ensuring even load distribution. The bolt is manufactured from grade 10.9 alloy steel, offering excellent tensile strength and resistance to loosening under vibration.
The MAN222-MK8X4 designation indicates a specific thread configuration and coating that provides corrosion resistance and consistent torque retention. This bolt is designed to withstand the harsh environmental conditions of heavy-duty trucking, including exposure to road salt, moisture, and extreme temperatures. Its precise length and thread pitch ensure a secure fit with the chassis mounting points, making it an essential component of the ECU Mount Assembly for reliable long-term attachment.
The ECU Bracket is the main structural component of the ECU Mount Assembly, providing a rigid and precisely positioned platform for the Engine Control Unit. It is manufactured from high-strength steel with a corrosion-resistant powder coating, ensuring durability and long service life. The bracket features multiple mounting holes that correspond to the ECU’s fixing points and the chassis attachment locations.
The design of the ECU Bracket incorporates strategic reinforcements and gussets to prevent flexing or bending under the weight of the ECU and the vibration loads experienced during vehicle operation. This ensures that the ECU remains perfectly aligned with its wiring harness connectors, preventing stress on the electrical terminals and maintaining reliable signal integrity. The bracket also allows for sufficient airflow around the ECU, aiding in thermal management and preventing overheating of the electronic components. With its precision-engineered geometry, this bracket is a crucial element of the ECU Mount Assembly, guaranteeing that the electronic control unit is securely and correctly positioned for optimal performance and longevity.
The ECU Mount Assembly incorporates high-quality rubber cushions that effectively isolate the ECU from road and engine vibrations. This prevents damage to sensitive electronic components and ensures reliable operation over the long term.
This ECU Mount Assembly includes all necessary components – rubber cushions, high-strength flange bolts, and the bracket itself – for a complete and hassle-free installation. The kit eliminates the need to source individual parts, saving time and ensuring compatibility.
All components of the ECU Mount Assembly are manufactured from corrosion-resistant materials – the bracket is powder-coated steel, the bolts are zinc-nickel plated, and the rubber cushions are oil-resistant EPDM. This ensures long-lasting performance even in harsh environments.
The ECU Mount Assembly is manufactured to strict OEM tolerances, guaranteeing a perfect fit on the Sitrak C7H. The bracket’s mounting holes align precisely with the chassis and ECU points, reducing installation time and ensuring a secure, rattle-free connection.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.