The Engine Hood Insulation Mat is a vital component for reducing engine noise and heat transfer into the cabin of the Sitrak C7H, ensuring a quieter and more comfortable driving environment.
This comprehensive kit includes the Engine Hood Insulation Mat (High Flame Retardancy), Left Heat Insulation Mat, Right Heat Insulation Mat, C7 Left Soundproofing Board (High Flame Retardancy), C7 Right Soundproofing Board (High Flame Retardancy), Cross Recessed Pan Head Tapping Screws with Large Washers Assemblies, Circlips, Circlips for Splash Guard Connection, Hexagon Flange Serrated Bolts M14*1.5, Cross Recessed Pan Head Tapping Screws with Flat Washers Assemblies, and Hexagon Flange Nuts M6.
Every component in this Engine Hood Insulation Mat set is manufactured from high-quality flame-retardant materials that meet stringent safety standards. The insulation mats are designed to withstand under-hood temperatures while providing excellent sound absorption.
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 Engine Hood Insulation Mat system significantly reduces engine noise penetration, improves thermal comfort, and protects the hood paint from heat damage. This Engine Hood Insulation Mat set is the definitive choice for owners seeking a quieter, cooler cabin and enhanced vehicle durability.
This is the primary insulation layer fitted to the underside of the engine hood. Made from high-density, flame-retardant foam with an aluminum foil facing, it reflects heat away from the hood and absorbs engine noise. The material meets FMVSS 302 flammability standards, providing excellent fire safety.
This mat is designed to insulate the left side of the engine compartment, reducing heat soak into the cabin floor and footwell area. It is constructed from a similar flame-retardant material with a reinforced backing for durability, and its shape precisely matches the left-side contours of the C7H engine bay.
This is the symmetric counterpart for the right side of the engine compartment. It provides equal thermal protection and noise reduction on the passenger side, ensuring balanced cabin comfort. The mat’s design accommodates all engine ancillary components without interference.
This sound-dampening panel is specifically designed for the left side of the C7 cab. It features a multi-layer structure with a dense barrier layer and an open-cell foam absorber, effectively reducing low-frequency engine drone. The high flame-retardancy rating ensures compliance with international safety regulations.
Mirroring the left board, this right-side soundproofing board delivers identical acoustic performance. Together, they create a comprehensive sound barrier that reduces interior noise levels by up to 5 dB, significantly improving speech intelligibility and driver comfort.
These pre-assembled fasteners combine a cross-recessed tapping screw with a large-diameter washer, providing secure attachment for the insulation mats. The large washer distributes clamping pressure evenly, preventing damage to the soft insulation material and ensuring a vibration-resistant hold.
These robust circlips are used to secure various components within the insulation system, including retaining pins and mounting studs. Made from spring steel with a corrosion-resistant coating, they provide reliable retention under high-temperature and high-vibration conditions.
Specifically engineered for attaching splash guards to the underside of the engine compartment, these circlips offer a secure and quick-release fastening solution. They are designed to withstand exposure to water, mud, and road salt, ensuring long-term corrosion resistance.
These high-strength bolts feature a serrated flange that bites into the mating surface to prevent loosening from vibration. With a coarse M14 thread and 1.5mm pitch, they are ideal for securing heavy components like the engine hood hinges and other structural brackets within the insulation system.
These pre-assembled screws with flat washers provide a secure and flush fastening solution for thinner panels and trim covers. The flat washer ensures even load distribution, while the tapping screw bites directly into plastic or light-gauge metal without the need for pre-tapping.
These M6 flange nuts are used in conjunction with bolts to secure various components of the insulation and soundproofing system. The integrated flange provides a larger bearing surface, reducing the risk of loosening and providing a secure, reliable fastening point.
The Engine Hood Insulation Mat is manufactured from materials that meet the highest flame-retardancy standards, including FMVSS 302 and ISO 3795. This ensures that in the event of an under-hood fire, the insulation will not propagate flames, providing critical time for driver safety and vehicle protection.
The Engine Hood Insulation Mat system combines dense sound barriers with open-cell foam absorbers to reduce engine noise by up to 6 dB. Simultaneously, the aluminum foil facing reflects radiant heat, lowering cabin floor temperatures by as much as 15°C, significantly improving passenger comfort.
This Engine Hood Insulation Mat kit includes every fastener and clip needed for a full installation, from tapping screws with large washers to serrated flange bolts and circlips. There is no need to purchase additional hardware, and the components are pre-sized for the C7H’s specific mounting points.
All components of the Engine Hood Insulation Mat are built to withstand the harsh under-hood environment. The insulation materials resist oil, coolant, and salt spray, while the fasteners feature zinc plating or geometric coatings that prevent rust and maintain clamping force for the entire service life of the vehicle.
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.
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