Engine Mounts
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Rear Axle Housing and Hub Assembly
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C7 Intake System – Complete Engine Air Induction Assembly for Sitrak C7H

The C7 Intake System is a comprehensive air induction assembly designed to deliver clean, filtered air to the engine of the Sitrak C7H. This complete system includes the air filter housing, all intake ducts, hoses, sensors, brackets, and fasteners required for a full installation.

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 C7 Intake System.

The C7 Intake System is designed to optimize airflow while effectively filtering out dust, debris, and moisture. Its advanced filter media ensures high filtration efficiency, protecting the engine from premature wear and extending service intervals.

This C7 Intake System kit includes the air filter assembly, all necessary connecting hoses, clamps, and mounting hardware. Every component is manufactured to OEM specifications, guaranteeing a perfect fit and reliable performance under the most demanding operating conditions.

C7 Intake System

Component Details of C7 Intake System

Air Filter Assembly (Flame-Retardant Filter Element)

The Air Filter Assembly is the primary filtration component of the C7 Intake System. It features a high-efficiency flame-retardant filter element that captures particles down to 5 microns, ensuring clean air delivery to the engine. The housing is made of durable plastic with a sealed design to prevent unfiltered air bypass.

Sealing Ring

The Sealing Ring provides a positive seal between the air filter housing and the inlet duct. Made from high-temperature EPDM rubber, it prevents unfiltered air from entering the engine, maintaining the efficiency of the C7 Intake System.

Hexagon Flange Bolt M10

These M10 flange bolts are used to secure the air filter housing and other components of the C7 Intake System. Manufactured from grade 8.8 steel with a zinc plating, they provide reliable clamping force and corrosion resistance.

Negative Pressure Sensor

The Negative Pressure Sensor monitors the vacuum level in the intake system, providing critical data to the ECU. In the C7 Intake System, it helps detect air filter clogging and ensures optimal engine performance.

Cross Recessed Pan Head Tapping Screw

These self-tapping screws are used to secure sensor brackets and small covers in the C7 Intake System. The cross recess head allows for easy installation with standard screwdrivers, and the zinc-plated finish resists corrosion.

Door-Shaped Bracket Welding Assembly

This robust bracket assembly supports the air filter housing and secures it to the chassis. In the C7 Intake System, it is fabricated from heavy-gauge steel with a powder-coated finish, providing a durable and stable mounting platform.

Hexagon Flange Serrated Bolt M14*1.5

These heavy-duty M14 serrated flange bolts secure the main intake brackets to the chassis. The serrated flange provides a positive lock against loosening, making them ideal for high-vibration areas of the C7 Intake System.

Turbocharger Intake Pipe

This pre-formed steel pipe carries filtered air from the air filter to the turbocharger. In the C7 Intake System, it is made of corrosion-resistant steel with a smooth internal bore, minimizing flow restriction and ensuring maximum airflow.

Air Hose (China III)

This flexible air hose connects the intake pipe to the air filter housing. Manufactured from reinforced rubber, it is compatible with China III emission standards and provides a durable, leak-free connection in the C7 Intake System.

Hose Clamp

These stainless steel hose clamps secure the air hoses to their respective connectors. In the C7 Intake System, they provide consistent clamping force and are resistant to corrosion, ensuring leak-free connections throughout the system.

Lower Intake Duct Assembly

The Lower Intake Duct Assembly routes air from the filter to the turbocharger. Manufactured from impact-resistant plastic, it is designed to withstand the harsh under-hood environment of the C7 Intake System.

Sealing Strip

This adhesive-backed sealing strip is used to seal gaps between the intake duct and the body panels. In the C7 Intake System, it prevents unfiltered air from entering the engine bay and reduces noise.

Curved Press Strip

This curved metal strip secures the sealing strip to the intake duct. In the C7 Intake System, it ensures a tight seal and prevents the sealing strip from peeling off over time.

Hose Clamp φ240/260 Width 12mm

This large-diameter clamp secures the main air hose connection. With a range of 240-260mm and a 12mm band width, it provides a secure hold on large-diameter hoses in the C7 Intake System.

Hexagon Flange Bolt M6

These M6 flange bolts secure smaller brackets and sensors in the C7 Intake System. Made from grade 8.8 steel with a zinc plating, they provide reliable fastening for light-duty components.

Large Washer

These oversized washers are used under bolt heads to distribute load and protect the surface of plastic components. In the C7 Intake System, they prevent cracking and ensure even clamping pressure.

Intake Connection Pipe Bracket

This bracket supports the intake connection pipe and ensures it remains properly routed. In the C7 Intake System, it is made of steel with a corrosion-resistant coating, providing a secure mounting point.

Bracket Assembly

This additional bracket assembly provides support for the intake ducting. In the C7 Intake System, it is designed to absorb vibration and prevent stress on the intake components.

Upper Intake Bellows

The Upper Intake Bellows is a flexible corrugated hose that connects the air filter to the intake duct. In the C7 Intake System, it accommodates engine movement and thermal expansion while maintaining a leak-free seal.

Intake Duct Assembly L40/41 (without cyclone)

This main intake duct routes air from the grille to the air filter housing. Manufactured from impact-resistant plastic, it is designed for the L40/41 chassis without a cyclone pre-filter, offering a direct air path in the C7 Intake System.

Trim Panel Assembly

The Trim Panel Assembly provides a finished appearance to the intake system and protects the ducting from damage. In the C7 Intake System, it is made of durable plastic with a textured finish, matching the vehicle’s interior.

Spacer Bushing

This spacer bushing is used to maintain correct alignment between the intake components. In the C7 Intake System, it is made of steel with a corrosion-resistant coating and ensures proper spacing for mounting.

Button Head Screw C6X25

This button head screw is used for securing trim panels and covers. In the C7 Intake System, it provides a low-profile fastening solution that does not interfere with adjacent components.

Button Head Screw C-6 X 115

This longer button head screw is used for deeper mounting points. In the C7 Intake System, it provides secure fastening for larger brackets and components.

Rubber-Metal Cushion

These rubber-metal cushions isolate the intake system from chassis vibrations. In the C7 Intake System, they reduce noise transmission and protect the ducting from fatigue damage.

Blind Rivet Nut

These threaded inserts provide strong fastening points in thin sheet metal. In the C7 Intake System, they are used to attach brackets and components without the need for welding.

Bushing

These bushings provide a bearing surface for pivoting components in the C7 Intake System. Made from wear-resistant material, they ensure smooth operation and long service life.

Type I Hexagon Nut

These standard hexagon nuts are used with bolts throughout the C7 Intake System. Manufactured from zinc-plated steel, they provide reliable clamping force and corrosion resistance.

Adhesive-Backed Rubber Strip

This rubber strip with adhesive backing is used to seal gaps and prevent chafing. In the C7 Intake System, it protects the ducting from sharp edges and reduces noise.

Hexagon Flange Serrated Bolt M10

These M10 serrated flange bolts secure the main intake brackets. The serrated flange provides a positive lock against loosening, making them ideal for high-vibration areas of the C7 Intake System.

Product Parameters of C7 Intake System

No. Part No. Name
1711W08400-6110Air Filter Assembly (Flame-Retardant Filter Element)
2710W08902-0020Sealing Ring
3ZQ1841016Hexagon Flange Bolt M10
4811W27421-0231Negative Pressure Sensor
5Q2714816Cross Recessed Pan Head Tapping Screw
6850W08440-5003Door-Shaped Bracket Welding Assembly
7ZQ18114150TF6Hexagon Flange Serrated Bolt M14*1.5
8ZQ325141T3F6Hexagon Flange Serrated Bolt M14*1.5
9712W08201-0046Turbocharger Intake Pipe
10WG9725190148Air Hose (China III)
11190003989365Hose Clamp
12190003989316Hose Clamp
13WG9925190538Lower Intake Duct Assembly
14WG9725190571Sealing Strip
15WG9725193301Curved Press Strip
16WG9003981260Hose Clamp φ240/260 Width 12mm
17ZQ1840612Hexagon Flange Bolt M6
18Q40206Large Washer
19810W08340-0154Intake Connection Pipe Bracket
20810W06936-5128Bracket Assembly
21Q40210Large Washer
22WG9925190087Upper Intake Bellows
23WG9725190535Hose Clamp
24710W08201-6076Intake Duct Assembly L40/41 (without cyclone)
25810W08201-5913Trim Panel Assembly
26810W93030-0352Spacer Bushing
27MQ6W07219-0038Button Head Screw C6X25
28MQ6W07219-0030Button Head Screw C-6 X 115
29810W96210-0524Rubber-Metal Cushion
30MQ6W13169-0022Blind Rivet Nut
31810W08240-0275Bushing
32Q340B08F31Type I Hexagon Nut
33810W96101-2297Adhesive-Backed Rubber Strip
34ZQ1801025Hexagon Flange Serrated Bolt M10
35Q40208F31Large Washer

Why Choose Our C7 Intake System?

Superior Filtration for Engine Protection

The C7 Intake System uses a high-efficiency flame-retardant filter element that captures particles down to 5 microns, protecting the engine from wear and extending service intervals.

Complete Kit with All Components

This C7 Intake System kit includes every filter, duct, hose, clamp, sensor, bracket, and fastener needed for a full installation. The all-in-one solution saves time and ensures compatibility.

Durable Materials for Long Service Life

All components of the C7 Intake System are manufactured from corrosion-resistant and heat-tolerant materials, ensuring reliable performance in the harsh engine bay environment over millions of kilometers.

OEM Quality and Exact Fitment

The C7 Intake System is manufactured to the exact OEM specifications, guaranteeing a perfect fit on the Sitrak C7H. The pre-formed ducts and correctly sized hardware ensure a hassle-free installation.

Online Catalog of SINOTRUK Parts

Learn More

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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