The Sitrak C7H 4×2 Tractor Chassis Braking System is a robust and precisely engineered safety assembly designed for heavy-duty commercial applications. Understanding the complexity of this hydraulic and pneumatic network is essential for proper maintenance of your 4×2 Tractor Chassis Braking System. The comprehensive Sinotruk Catalog provides every genuine replacement part for this 4×2 Tractor Chassis Braking System, ensuring your vehicle’s stopping power remains absolute. Here we break down the individual components that are integral to the reliable performance of this critical 4×2 Tractor Chassis Braking System. Each element is built to withstand extreme pressures, guaranteeing safety and durability for The part under the most demanding operational environments.
From the foundational brackets to the sensitive electronic control units, every piece in this comprehensive braking system performs a vital function necessary for The part. Fleet operators and mechanics depend on the seamless integration of these parts to ensure the truck responds instantly and safely during transit. By choosing high-grade replacement parts for The part, you directly reduce the risk of brake failure and ensure the longevity of the vehicle. We have compiled a detailed list of all unique components required for The part, offering a complete insight into the assembly required for optimal performance.
The ECM Assembly Fixing Bracket provides a rigid and stable mounting point for the electronic control module. It effectively isolates sensitive electronics from chassis vibration, which is critical for the reliable operation of your 4×2 Tractor Chassis Braking System.
The Spring Washer is a small but essential fastener component designed to provide consistent tension. It prevents nuts and bolts from loosening due to the continuous, heavy vibrations inherent in The part.
The Hexagon Bolt serves as a primary structural fastener within The part. Its robust six-sided head allows for high-torque tightening, ensuring a firm and secure connection between the heavy cast iron components of the system.
The Hexagon Flange Nut M14*1.5 provides a wider load-bearing surface compared to standard nuts. This design minimizes the risk of galling and ensures a secure, long-lasting grip on mounting studs located throughout The part.
The Hexagon Flange Bolt M14*1.5 offers superior clamp load distribution over standard bolts. It is heavily utilized in high-stress areas of The part, ensuring that critical linkages and brackets stay securely fastened.
The Hexagon Flange Bolt M8 is a reliable, smaller-sized fastener utilized for attaching auxiliary brackets and light-duty accessories. Its integrated flange ensures even pressure distribution across the mounting surfaces of The part.
The Circlip is a specialized retainer used to secure internal components within a bore. It ensures that specific moving parts, such as those found in brake actuators, remain precisely positioned during operation of The part.
The O-Ring is a vital sealing component designed to block the escape of pressurized hydraulic or pneumatic fluids. High-quality O-rings are essential to maintaining the flawless functioning of the entire 4×2 Tractor Chassis Braking System.
The Bracket M22X1.5 is a specific supporting structure designed with precision threads to secure sensing or control devices. It guarantees a stable foundation for essential instruments within the air management network of The part.
The Hexagon Flange Bolt M6 is utilized for assembling smaller, lightweight components within The part. Its precise threading and integrated flange make it excellent for securing delicate sensor brackets and connection plates.
The Washer provides a smooth load-bearing surface under the head of a fastener. It prevents localized damage to the chassis material and ensures that the clamped load remains constant over time in The part.
The Double-ended Stud offers threaded segments on both ends to facilitate deep connections. It allows for the secure mounting of heavy components onto The part framework while providing an effective platform for fastening nuts.
The Plug Screw is essential for sealing access ports and unused threaded holes within the braking fluid channels. It prevents leakage of critical pressure fluids and stops contamination from entering the internal lines of The part.
The universal Bracket acts as a versatile mounting arm designed to support various tubes and cables. It ensures that pneumatic lines and wiring harnesses remain organized, safe from damage, and free from rubbing against The part chassis.
The Sound Alarm provides an audible alert to the driver regarding specific system conditions. This safety device immediately warns the operator of critical issues like low air pressure to prevent dangerous situations related to The part.
The Pipe Connector serves as a seamless junction between rigid tubes and flexible hoses. It creates a leak-proof bond essential for maintaining the integrity of the pneumatic and hydraulic circuits within The part.
The Elbow Connector allows for fluid or air routing at a specific angled intersection. It aids in space-saving routing of pipes and hoses around the tight corners of The part’s truck chassis structure.
The Hose is a durable, flexible conduit designed to transport hydraulic fluid or compressed air across moving joints. Its resilient construction resists cracking and ensures a reliable fluid supply to the braking mechanisms of The part.
The Coupling provides a quick and secure connection point between two sections of tubing. It allows for rapid assembly and disassembly of brake lines, facilitating easier maintenance and part replacement for your 4×2 Tractor Chassis Braking System.
The Wiring Harness bundles together all critical electrical signal cables for The part. Wrapped in protective sheathing, it shields the wiring from heat and abrasion, ensuring reliable communication between the sensors and the ECU.
The Relay operates as an electrically controlled switch that manages high-current circuits. It enables the low-power ECU to safely control heavy-duty actuators like the brake solenoids and valves of The part.
The EBS3 Control Unit is the advanced electronic brain of The part. It processes input from various sensors to optimize braking pressure distribution for maximum stability and stopping efficiency.
The Adjustment Shim is a thin, precision-engineered spacer used to calibrate clearances. It ensures that components like the brake calipers are correctly positioned to achieve optimal system response times for The part.
The Valve is a mechanical unit responsible for controlling the flow and pressure of compressed air throughout The part. Its precise opening and closing regulate braking force delivered to the wheel actuators.
The Connector serves as a physical junction point for joining multiple pneumatic lines. It ensures a tight and durable seal, preventing the loss of crucial air pressure within the primary supply network of The part.
The Cylinder Head Bolt offers immense tensile strength for securing critical engine-related components. It ensures that the air compressor remains firmly mounted to deliver adequate pressure to the reservoirs of The part.
The Lock Nut features a unique nylon insert or metal locking mechanism to prevent loosening due to vibration. This makes it essential for securing critical linkages that must remain adjustable yet immovable within The part.
The Limit Block acts as a mechanical stop to restrict the excessive travel of an actuator. It prevents damage to internal mechanisms by physically limiting the movement range of specific components within The part.
The Steel Pipe provides a rigid and corrosion-resistant channel for transporting pressurized air. Its sturdy construction prevents collapsing or bursting under the extreme high pressures required for The part.
The Seal Ring is placed at critical joints to prevent fluid or gas leaks. Reliable sealing is mandatory for maintaining the consistent pressure differentials needed to operate the brake chambers effectively within The part.
The Plug is utilized to close off unused access points or threaded holes in the housing blocks. This prevents debris from entering the system and stops pressurized air from escaping the network of The part.
The Spring is a pre-stressed coil used to return a valve or actuator to its default neutral position. Its consistent spring force ensures reliable retraction of brake components when pressure is released in The part.
The Release Valve functions to rapidly vent excess pressure from a specific circuit. This quick-release action is vital to ensure the brake pads retract promptly when the driver releases the pedal controlling The part.
The Sensor monitors wheel speed or pressure to feed real-time data to the EBS3 Control Unit. Accurate sensor input allows the advanced electronic system to modulate braking force dynamically within The part.
The Spark Plug is primarily associated with the engine but is vital for the engine-driven air compressor. It ensures smooth engine operation, which is necessary to maintain steady air supply for The part.
The Door Lock secures the cabin door securely against the frame. While not directly part of the brake line, it ensures driver security and prevents unauthorized access to the cab interior during operation of The part.
The Drive Unit acts as a small motorized actuator for specific valves. It allows for electrical control of pneumatic functions, converting digital signals into physical mechanical movement for The part.
The Filter is responsible for removing moisture and dust particles from the compressed air. Clean, dry air is critical to prevent corrosion and damage to the sensitive internal workings of the valves and actuators in The part.
The Cap serves as a cover for protective housings or thread protectors. It prevents dirt and contaminants from building up on critical connection points while The part is undergoing maintenance.
The Switch operates as a manual or pressure-activated electrical contactor. It triggers specific alerts or activates auxiliary functions when a certain threshold is met within The part network.
The Pump is the mechanical heart that generates the initial air pressure for The part. It continuously draws in atmospheric air and compresses it into the receiver tanks for storage until needed for braking.
The Carrier Bracket provides a robust structural platform for mounting brake chambers or other heavy hardware. Its sturdy construction ensures the actuators remain perfectly aligned with the push rods of The part.
The Transmission Belt transfers rotational power from the engine to the air compressor. A well-maintained belt ensures the compressor runs at the required speed to adequately supply the reservoirs of The part.
The Pin serves as a pivot point for linkages and lever arms within the foundation brake. It facilitates smooth movement while retaining the components securely within their designated alignment for The part.
The Seal is a durable gasket used to prevent leakage at the interfaces of different casting parts. Its proper installation is vital for maintaining the pressure required for the braking mechanics of The part to function.
The Pressure Control Valve regulates the air pressure to maintain the correct operating range for The part. It protects the downstream components from over-pressurization, which could cause catastrophic failure.
The Parking Brake Valve controls the dedicated air supply for the parking brake system. It allows the driver to securely apply the spring brakes, ensuring the truck remains stationary when parked, utilizing The part.
The Relay Valve acts as a signal amplifier for the control lines. It uses a small pilot air signal to rapidly open the main supply valve, enabling quick braking response for the rear axles of The part.
The Exhaust Pipe directs waste air away from the compressor and valves. Routing the expelled air downwards prevents dust from being kicked up into the intake, prolonging the life of the filtration system of The part.
The Return Oil Pipe returns lubricating fluid back to the main reservoir. Maintaining proper oil circulation is essential to reduce wear on the internal moving parts of the air compressor of The part.
The High Pressure Oil Pipe transports lubricating oil under high pressure. This ensures that the bearings and seals of the compressor receive adequate lubrication to handle heavy work cycles for The part.
The Union Nut is a strong, hexagonal fastener used to secure hydraulic fittings. It provides a tight seal on pipe ends to guarantee that connections withstand the demanding pressures of The part.
The Hexagon Thin Nut offers a low profile while providing secure fastening. Its reduced height is utilized in confined spaces where a standard nut would interfere with other mechanical assemblies of The part.
The Hose Clamp is a band-style fastener used to secure a flexible hose onto a rigid fitting. It applies uniform pressure to create a leak-free, secure seal against blow-off under pressure in The part.
The Steel Washer is a hard, metallic disc that provides a bearing surface for heavy-duty bolts. It prevents the fastener head from galling the softer surface of the chassis frame during tightening for The part.
The Oil Guide Pipe directs the flow of lubricating oil to specific friction points. Precise oil delivery is essential for minimizing heat buildup and preventing premature wear on the compressor of The part.
The Air Filter acts as the first line of defense against dirt and debris entering the compressor. Keeping the intake air clean prevents internal scoring and maintains the efficiency of the charging system for The part.
The Rubber Pad serves as a vibration-dampening cushion between the metal bracket and the chassis. It reduces noise transmission and protects the mounting surface from fretting wear caused by constant motion in The part.
The Connecting Hose links separate sections of the air supply system. Its flexible design allows for easy routing around the engine block while safely carrying pressurized compressed air for The part.
The Plastic Cable Tie bundles exposed wires and thin tubes together. By keeping them neatly grouped, it prevents accidental snagging and keeps the engine compartment organized and safe for The part.
The Gasket is a thin, flexible material compressed between two rigid surfaces. Its primary purpose is to completely seal the irregular surfaces of metal castings, ensuring zero fluid or gas leaks in The part.
The Clip is a versatile holding device used to quickly secure hoses or wire bundles. It provides a simple, non-permanent fastening solution that allows for easy future maintenance and part swaps for The part.
The general Bolt serves as a primary threaded fastener in various assemblies. Made from high-strength steel, it is essential for clamping parts firmly together against the heavy forces of braking within The part.
The standard Nut works in tandem with a bolt to provide clamping force. When tightened, it pulls the connected parts tightly together, ensuring the structural integrity of The part assembly.
The Rivet is a permanent mechanical fastener used to join thin metal plates. It provides a permanent, non-threaded connection that is extremely resistant to loosening from vibration over time in The part.
The Hose Connector securely attaches a flexible hose to a rigid metal pipe. Its barbed or threaded design locks the hose in place, ensuring that the pressurized air path remains unbroken for The part.
The Support Bracket provides essential physical support to hold tubing and cable runs. It prevents them from sagging or coming into contact with hot engine surfaces that could melt protective coatings of The part.
The Bushing is a cylindrical lining inserted into a hole to reduce friction. It provides a smooth bearing surface for rotating parts, enabling wear-resistant movement within the steering and braking linkages of The part.
The Locknut is a specialized nut designed with a friction element to lock it in place. This self-locking feature is indispensable for maintaining clamping force in environments with constant intense vibration like The part.
The Lock Washer features split ends that bite into the material surface. This mechanism creates a locking action that prevents the nut from rotating backward under heavy rotational stress within The part.
The Mounting Bracket is a robust steel structure used to anchor brake chambers. Its design compensates for chassis flex, ensuring that the braking force is transmitted effectively to the wheel for The part.
The Pipe is a rigid tubular element used for routing air over longer distances. It offers superior durability compared to rubber hoses, making it ideal for running lines along the vehicle frame of The part.
The Joint creates a permanent or semi-permanent connection between different pipe sections. A well-made joint ensures smooth flow without pressure drops, which is crucial for responsiveness of The part.
The Retaining Ring is a snap-in fastener used to secure components like bearings. Its spring-loaded design allows for easy assembly while holding parts firmly within their mounting bore of The part.
The Stand is a stationary support structure designed to elevate components. It helps protect wiring and pneumatic lines from potential damage caused by ground friction or moisture within The part.
Sitrak C7H 4×2 Tractor Chassis Braking System
The following table provides the complete OEM part numbers and names for the comprehensive 4×2 Tractor Chassis Braking System kit. These parameters are essential for technicians to verify correct part identification before installation into The part. Please cross-reference the specific part numbers against your existing components to ensure a perfect match for your 4×2 Tractor Chassis Braking System.
| 序号 | 图号 | 名称 |
|---|---|---|
| 1 | 712W51715-0044 | ECM Assembly Fixing Bracket |
| 2 | Q40312 | Spring Washer |
| 3 | Q151C1228 | Hexagon Bolt |
| 4 | ZQ2311413F6 | Hexagon Flange Nut M14*1.5 |
| 5 | ZQ2311413F6 | Hexagon Flange Nut M14*1.5 |
| 6 | ZQ1851450TF6 | Hexagon Flange Bolt M14*1.5 |
| 7 | ZQ1840820 | Hexagon Flange Bolt M8 |
| 8 | ZQ32008 | Hexagon Flange Nut M8 |
| 9 | WG9000361009 | Circlip |
| 10 | WG9000361009 | Circlip |
| 11 | WG9000361017 | O-Ring |
| 12 | WG9000361016 | Bracket M22X1.5 |
| 13 | WG9000361016 | Bracket M22X1.5 |
| 14 | WG9000361016 | Hexagon Flange Bolt M6 |
| 15 | WG9000361016 | Washer |
| 16 | ZQ2362220TF6 | Washer |
| 17 | ZQ2362220TF6 | Double-ended Stud |
| 18 | WG9000361016 | Plug Screw |
| 19 | WG9000361016 | Plug Screw |
| 20 | WG9000361014 | Bracket |
| 21 | WG9000361013 | Sound Alarm |
| 22 | WG9000361010 | Pipe Connector |
| 23 | WG9000361010 | Elbow Connector |
| 24 | WG9000361010 | Hose |
| 25 | Q40206 | Coupling |
| 26 | WG9000361016 | Wiring Harness |
| 27 | WG9000361016 | Relay |
| 28 | WG9000361017 | EBS3 Control Unit |
| 29 | WG9000361501 | Hexagon Nut M8 |
| 30 | WG9000361502 | Hexagon Nut M12 |
| 31 | WG9000361701 | Adjustment Shim |
| 32 | WG9000361701 | Hexagon Flange Nut M8 |
| 33 | WG9000361701 | Hexagon Flange Nut M8 |
| 34 | WG9000361701 | Valve |
| 35 | WG9000361703 | Connector |
| 36 | 712W51715-0449 | Pressure Control Valve |
| 37 | 851-81451-0029 | Parking Brake Valve |
| 38 | ZQ1851450TF6 | Hexagon Flange Bolt M14*1.5 |
| 39 | WG9000360549 | Relay Valve |
| 40 | WG9000361410 | Multi-hole Gasket |
| 41 | Q2180420 | Hexagon Flange Bolt M6 |
| 42 | ZQ1841030 | Hexagon Flange Bolt M6 |
| 43 | ZQ32010 | Hexagon Flange Nut M6 |
| 44 | 712W51715-0023 | Support Bracket |
| 45 | 712W51715-0283 | Cylinder Head Bolt |
| 46 | 810W51715-5022 | Lock Nut |
| 47 | 811W06250-0566 | Hexagon Thin Nut |
| 48 | 810-54500-0019 | Limit Block |
| 49 | 711W91301-0024 | Hose Clamp |
| 50 | 711W56331-2161 | Steel Washer |
| 51 | 711W27199-1020 | Oil Guide Pipe |
| 52 | 711W251-0021 | Air Filter |
| 53 | 711W98438-6002 | Rubber Pad |
| 54 | ZQ1840820 | Hexagon Flange Bolt M8 |
| 55 | WG9000361327 | Connecting Hose |
| 56 | WG9000361401 | Plastic Cable Tie |
| 57 | WG9000361201 | Gasket |
| 58 | WG9000361201 | Clip |
| 59 | WG9000361202 | Bolt |
| 60 | WG9000361204 | Hexagon Nut |
| 61 | WG9000361204 | Rivet |
| 62 | WG9000361204 | Hose Connector |
| 63 | WG9000361204 | Support Bracket |
| 64 | WG9000361216 | Bushing |
| 65 | WG9000361301 | Locknut |
| 66 | WG9000361361 | Lock Washer |
| 67 | WG9000361701 | Mounting Bracket |
| 68 | WG9000361701 | Hexagon Flange Nut M8 |
| 69 | WG9000361701 | Hexagon Flange Nut M8 |
| 70 | WG9000361703 | Connector |
| 71 | WG9000361804 | Connector |
| 72 | WG9000361804 | Hexagon Thin Nut |
| 73 | WG9000361317 | Retaining Ring |
| 74 | WG9000359949 | Lock Nut |
| 75 | ZQ1841203TF6 | Hexagon Flange Nut M16 |
| 76 | WG9000361701 | Stand |
| 77 | WG9000361801 | Hexagon Flange Nut M16 |
Our 4×2 Tractor Chassis Braking System components are manufactured to strict original equipment standards. Using premium grade materials, these parts deliver unmatched longevity and resistance to wear, ensuring your 4×2 Tractor Chassis Braking System performs flawlessly under the heaviest loads.
Every part in our 4×2 Tractor Chassis Braking System is dimensionally exact to match the C7H chassis. This precise fit eliminates installation hassles, ensuring seamless integration with the existing pneumatic lines and electronic harness connections of The part.
We subject our 4×2 Tractor Chassis Braking System to extensive safety tests to guarantee performance. Each valve, hose, and fastener is evaluated to ensure it meets global safety benchmarks, giving you total confidence in your 4×2 Tractor Chassis Braking System stopping capability.
Our inventory includes all necessary elements for The part. We provide responsive global shipping and dedicated support, ensuring that you receive the correct components quickly for any urgent maintenance situation concerning The part.
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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