| No. | Part No. | Name |
|---|---|---|
| 2 | 811W25441-0656 | ECU Mounting Bracket |
| 3 | 712W25441-5342 | Left Wire Trough Mounting Bracket |
| 4 | 811W25441-6205 | ECU Enclosure (C7) |
| 5 | 811W26410-0077 | Junction Box Protective Cover |
| 6 | 811W26410-0073 | Protective Cover |
| 7 | 811W25441-0875 | Right Junction Box Cover |
| 8 | 811W25441-0787 | Right Frame |
| 9 | 811W25441-0657 | Right Connector Mounting Bracket |
| 10 | 811W25424-5002 | Left Wire Trough Lower (Wide Body) |
| 11 | 811W25424-5009 | Left Wire Trough Upper (Wide Body) |
| 12 | YG9600710003 | Left Pillar Harness Fixing Bracket (Wide Body) |
| 13 | 811W25424-5005 | Right Wire Trough Lower |
| 14 | 811W25424-5010 | Right Wire Trough Upper |
| 15 | 811W25441-0654 | Left Connector Mounting Bracket |
| 16 | ZQ150B0825TF6 | Hexagon Head Bolt M8 |
| 17 | Q150B0512F31 | Hexagon Head Bolt |
| 18 | YG9600580008 | Right Wire Trough Mounting Bracket Assembly |
| 19 | ZQ340B06 | Type 1 Hexagonal Nut M6 |
| 20 | Q150B0816F31 | Hexagon Head Bolt |
| 21 | Q2140816 | Cross Recessed Pan Head Screw |
| 22 | Q150B0518 | Hexagon Head Bolt |
| 23 | 811W25441-0999 | Left Junction Box Cover |
| 24 | Q2204213F31 | Cross Recessed Pan Head Self-tapping Screw and Flat Washer Assembly |
| 25 | YG9600580004 | Rain Shield (C7/Wide Body) |
| 26 | 811W25441-0788 | Latch Pin |
| 27 | MQ4-10194-9321 | Adhesive (MS935) |
| 28 | ZQ1840820 | Hexagon Flange Bolt M8 |
| 29 | ZQ32008 | Hexagon Flange Nut M8 |
| 30 | Q41208 | External Serrated Lock Washer |
| 31 | Q340B08 | Type 1 Hexagonal Nut |
| 32 | AZ9003921821 | Hexagon Socket Head Cap Screw with Flat Washer (Stainless Steel) |
| 33 | AZ9003921821 | Hexagon Socket Head Cap Screw with Flat Washer (Stainless Steel) |
| 34 | AZ9003921822 | Hexagon Socket Head Cap Screw with Flat Washer (Stainless Steel) |
| 35 | YG9600580009 | Fuse Clip |
| 36 | AZ962277000052 | Front Grille Spacer Block |
| 37 | YZ16D495000013 | 15‑Pin Power Take‑Off Label |
| 38 | YG9600710018 | Left Front Suspension Harness Fixing Bracket |
This bracket securely holds the ECU in the front junction box area. It is made of stamped steel with anti‑vibration grommets to protect the controller from road shock.
This bracket supports the left wire trough, keeping harnesses organised and away from moving parts. It is powder‑coated for corrosion resistance.
The ECU Enclosure is a rugged plastic housing that protects the engine control unit from moisture and debris. It includes a hinged lid with a seal.
This cover shields the main junction box terminals from water and dirt. It is made of UV‑stabilised plastic and clips into place without tools.
A secondary cover used to protect individual connector blocks within the junction box. It ensures dust‑free connections.
Specifically shaped cover for the right side of the junction box, with integrated cable exit slots for neat wiring.
The right frame forms the structural skeleton of the assembly, providing mounting points for covers and brackets.
This bracket holds multiple connectors in a fixed position, simplifying connection and disconnection during service.
Lower channel for left‑side wiring in wide‑body cabs. It routes cables neatly along the chassis rail, protecting them from heat.
Upper counterpart that completes the protective channel for left‑side wiring, securing with clips.
Mounted on the A‑pillar, this bracket keeps the harness from rubbing against the body, preventing wear.
Lower right‑side cable channel, similarly built for durability and easy access.
Upper right channel that completes the protective duct for the right‑side harness.
Holds connectors on the left side in an organised manner, reducing strain on the wires.
Standard M8 hex bolt used for mounting various brackets. Grade 8.8 with zinc plating.
General‑purpose hex bolt (M5 or M8 variants) used for lighter attachments.
Complete bracket assembly that supports the entire right wire trough, including mounting bolts.
M6 hex nut used with small bolts. Corrosion‑resistant and self‑locking design.
Pan head screw with cross recess, used for securing covers and small brackets.
Left‑side cover for the junction box, with a rubber seal to keep out moisture.
Self‑tapping screw with integrated flat washer for fast assembly into plastic or sheet metal.
A molded plastic shield that deflects water away from the junction box, preventing corrosion.
Metal pin that secures the junction box cover, providing a positive latching mechanism.
MS935 is a flexible, weather‑resistant adhesive used to seal joints and prevent water ingress.
Flanged M8 bolt with integrated washer, used for high‑clamp applications.
Flanged nut matching the flange bolt, providing a larger bearing surface.
Serrated washer that digs into the mating surface to prevent loosening under vibration.
Standard M8 hex nut, used with bolts for general fastening.
Stainless steel socket head cap screw with pre‑fitted flat washer, offering high strength and corrosion resistance.
A metal clip that holds spare fuses securely within the junction box for quick replacement.
A spacer that positions the front grille correctly, ensuring proper alignment of the junction box.
A printed label indicating the 15‑pin power take‑off connection, assisting with correct wiring.
Bracket that secures the front suspension harness on the left side, preventing chafing against the suspension components.
Every bracket and cover is manufactured to Sinotruk’s original drawings, ensuring a perfect fit on the C7H front frame. No modifications needed.
The assembly includes rain shields, covers, and adhesive to fully seal the junction box against water, dust, and road debris, ensuring reliable electrical connections.
We supply every bolt, nut, screw, and washer required for installation. No need to hunt for hardware – just use the provided kit.
With dedicated wire troughs and brackets, this assembly keeps harnesses neatly routed and secured, reducing the risk of chafing and electrical faults.
The Front-Mounted Junction Box Assembly is a critical component for housing and protecting the main electrical distribution centre of the Sitrak C7H. It consolidates fuses, relays, and ECU connections in one accessible location.
This kit includes all structural brackets, covers, and fasteners to completely replace or upgrade the existing junction box setup. The use of high‑grade steel and stainless steel hardware ensures long‑term durability.
The left and right wire troughs are designed specifically for wide‑body C7H cabs, accommodating the thicker harness bundles. Their upper and lower sections clip together to form a complete protective channel.
The ECU mounting bracket and enclosure work together to isolate the engine control module from engine heat and vibration, prolonging its service life. The enclosure includes a sealing gasket for weatherproofing.
Connector mounting brackets are provided for both left and right sides, ensuring that all harness connectors are firmly held and properly aligned, reducing stress on terminals.
The rain shield is a vital addition that deflects water away from the junction box, especially important for trucks operating in wet climates. It is made from UV‑resistant plastic.
All fasteners are supplied in the correct grades and sizes. The hexagon flange bolts and nuts provide a wide clamping surface, reducing the risk of loosening over time.
The self‑tapping screws and spring nuts are designed for quick installation into pre‑punched holes, saving assembly time during production or repair.
The 15‑pin power take‑off label is a small but useful detail that guides technicians to the correct connection point, preventing wiring errors.
The front grille spacer block ensures that the grille sits correctly relative to the junction box, maintaining a consistent panel gap and airflow.
We provide a detailed installation diagram showing the exact position of each bracket and fastener, making replacement straightforward even for less experienced mechanics.
Using genuine components like this ensures that the junction box remains properly sealed and that all electrical connections are protected from the elements, reducing roadside breakdowns.
The adhesive (MS935) is supplied in a convenient tube for application to mating surfaces, providing an additional layer of waterproofing around the covers.
All metal parts are coated with a corrosion‑resistant finish, tested to 500 hours of salt spray, ensuring they withstand harsh winter road conditions.
The latch pins and covers are designed for tool‑less access, allowing for quick inspection and fuse replacement without removing the entire assembly.
We offer this kit as a complete package, which simplifies ordering and ensures that no small part is overlooked. This is especially valuable for fleet maintenance programs.
Our technical support team can assist with any installation questions, and we provide a 12‑month warranty on all parts. Should any component fail, we will replace it promptly.
By choosing our Front-Mounted Junction Box Assembly, you are investing in the long‑term reliability of your C7H’s electrical system. It is an essential upgrade for any truck showing signs of wiring corrosion or loose connections.
We ship worldwide and offer competitive pricing. Use the Send Email button for a custom quote, or the Get Quotation button to reach our sales team directly.
Don’t settle for mismatched or low‑quality aftermarket parts. Our genuine assembly guarantees a perfect fit, optimal protection, and the peace of mind that comes with original Sinotruk quality.
Order your kit today and ensure your C7H’s front electrical centre is as reliable as the day it left the factory. Our team is ready to assist you with any technical queries.
We maintain a large stock to ensure fast dispatch. Place your order now and experience the difference that genuine parts make.
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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