The Left Front Door Power Window Motor is the core actuation unit for the driver‑side window of the Sitrak C7H heavy truck.
This Left Front Door Power Window Motor delivers smooth, reliable, and quiet window operation, enhancing driver comfort and convenience.
The complete system includes the motor, regulator, guide rails, seals, brackets, and all necessary fasteners – a comprehensive kit for a full overhaul.
For detailed fitment and compatibility information, please refer to the Sinotruk Catalog.
This Left Front Door Power Window Motor is a genuine replacement, ensuring a perfect fit and long‑term reliability for your vehicle.
The Hexalobular socket flange bolt (M8) is a high‑strength fastener used to secure the window regulator and other components to the door structure. This Left Front Door Power Window Motor kit includes ten of these bolts, ensuring all mounting points are properly secured.
Its flange design distributes the clamping load evenly, preventing damage to the sheet metal. The hexalobular socket provides excellent torque transfer and reduces the risk of cam‑out during installation.
These bolts are zinc‑plated for corrosion resistance, ensuring a long service life even in humid or salt‑spray environments.
The Left front window glass guide rail is a precision‑formed channel that guides the window glass during its travel. This Left Front Door Power Window Motor component ensures that the glass moves straight and true, preventing rattling and misalignment.
It is made from roll‑formed steel with a smooth, corrosion‑resistant coating. The rail features a low‑friction surface that reduces wear on the glass edge and the sealing strips.
Correct installation of the guide rail is essential for proper window function and to avoid excessive load on the Left Front Door Power Window Motor.
The Front window glass guide rail sealing strip is an elastomeric profile that fits inside the front guide rail. This Left Front Door Power Window Motor part provides a weather‑tight seal and reduces wind noise.
Made from EPDM rubber, it is resistant to UV radiation and temperature extremes. The strip also cushions the glass, absorbing shocks from door closure.
Replacing a worn sealing strip improves cabin insulation and protects the glass from scratching, contributing to the longevity of the window system.
The Rear window glass guide rail sealing strip is the counterpart for the rear guide rail, providing the same sealing and cushioning functions. This Left Front Door Power Window Motor component ensures balanced performance on both sides of the glass.
It shares the same durable EPDM material and precise fitment, ensuring that the window operates smoothly without binding.
Replacing both front and rear sealing strips together is recommended when overhauling the window system, as they age at similar rates.
The Connecting plate assembly is a sturdy metal bracket that links the regulator to the door structure. This Left Front Door Power Window Motor component provides a rigid mounting point for the motor and regulator.
It is stamped from high‑strength steel and features pre‑drilled holes for easy alignment. The plate is coated to resist rust and includes captive nuts for simplified assembly.
Two of these plates are included, ensuring that both the upper and lower mounting points are properly reinforced.
The Left rear window glass guide rail is the companion rail to the front guide, ensuring the glass travels in a parallel path. This Left Front Door Power Window Motor component is essential for maintaining proper glass alignment and preventing wobble.
It is manufactured to the same high standards as the front rail, with a smooth, corrosion‑resistant surface and precise bends that match the door contour.
When replacing the regulator, it is advisable to inspect both guide rails and replace them if they show signs of wear or damage.
The Left water deflector is a plastic shield that protects the inner door cavity from water ingress. This Left Front Door Power Window Motor part is mounted behind the door trim, directing rainwater away from the motor and electrical connections.
It is made from durable, UV‑resistant polypropylene and features a drainage channel that guides water to the door’s drain holes.
A properly fitted water deflector significantly extends the life of the power window motor and other electrical components in the door.
The Left electric window regulator is the complete mechanism that converts the motor’s rotary motion into linear movement of the glass. This Left Front Door Power Window Motor kit includes the regulator, which is pre‑assembled with cables and pulleys.
It features a durable cable drive system that ensures smooth and balanced lifting, even under heavy load. The regulator is designed to match the specific glass weight and door geometry of the C7H.
Replacing the regulator together with the motor is often recommended to ensure complete reliability of the window system.
This assembly consists of a cross recessed pan head screw with an integrated flat washer. It is used to secure the guide rails and other components of the Left Front Door Power Window Motor system.
The washer spreads the load, protecting the plastic and sheet metal from damage. The screws are made from corrosion‑resistant steel and are designed for repeated removal and installation.
Three of these assemblies are included in the kit, covering the most common fastening points.
The Hexalobular tapping screw for plastic M3299-D is a self‑tapping screw designed specifically for plastic components. It is used to attach the water deflector and other plastic parts of the Left Front Door Power Window Motor system.
Its aggressive thread geometry provides a secure grip in plastic without causing cracking. The hexalobular drive allows for high torque application without stripping the head.
These screws are supplied in pairs, ensuring that the deflector and other trim pieces remain firmly attached.
The Window glass bracket is a metal clamp that attaches to the bottom edge of the window glass, connecting it to the regulator. This Left Front Door Power Window Motor component is essential for transferring the lifting force from the regulator to the glass.
It is made from high‑strength steel with a rubber cushion that prevents glass chipping. The bracket is designed for a secure grip, ensuring that the glass does not slip or become misaligned.
When replacing the regulator or motor, it is important to inspect the glass bracket and replace it if it shows signs of corrosion or wear.
| NO. | Part NO. | Name |
|---|---|---|
| 1 | MQ6W02259-0002 | Hexalobular socket flange bolt (M8) |
| 2 | 711W62651-0115 | Left front window glass guide rail |
| 3 | 810W62651-0087 | Front window glass guide rail sealing strip |
| 4 | 810W62651-0088 | Rear window glass guide rail sealing strip |
| 5 | 711W62640-6061 | Connecting plate assembly |
| 6 | 711W62651-0057 | Left rear window glass guide rail |
| 7 | 711W62645-0032 | Left water deflector |
| 8 | 711W62645-6051 | Left electric window regulator |
| 9 | Q2300616F31 | Cross recessed pan head screw and flat washer assembly |
| 10 | MQ6W07212-4309 | Hexalobular tapping screw for plastic M3299-D |
| 11 | 711W62645-0011 | Window glass bracket |
Our Left Front Door Power Window Motor is manufactured to the exact specifications of the original equipment, ensuring a perfect fit and reliable operation.
The motor and all ancillary components are engineered for the specific door geometry of the Sitrak C7H, eliminating fitment issues.
The Left Front Door Power Window Motor features a powerful, thermally protected motor that delivers consistent torque even under heavy loads.
The regulator’s cable system is pre‑tensioned and lubricated, ensuring smooth and quiet operation over the long term.
This Left Front Door Power Window Motor kit includes every necessary component: motor, regulator, guide rails, seals, brackets, and all fasteners.
No additional parts are required, making it a one‑stop solution for restoring full window functionality.
We stock a wide range of Left Front Door Power Window Motor kits to ensure prompt delivery to any location worldwide.
Our experienced support team is ready to assist with installation queries and provide technical guidance.
The Left Front Door Power Window Motor is essential for driver comfort and safety. A failed motor can leave the window stuck in an open or closed position, compromising security and climate control.
Replacing a worn motor with our genuine unit restores full control and ensures that the window operates reliably in all weather conditions.
The Left Front Door Power Window Motor is built to withstand the harsh conditions of heavy‑duty trucking, including temperature extremes, moisture, and constant vibration.
All metal components are coated for corrosion resistance, and the motor housing is sealed to protect against water ingress.
Begin by disconnecting the battery and removing the door trim. Carefully detach the old motor and regulator, noting the cable routing and fastening points.
Install the new Left Front Door Power Window Motor and regulator, securing them with the provided bolts and screws. Reattach the guide rails and sealing strips, then reconnect the electrical connector.
Test the window operation before reassembling the door to ensure smooth movement and correct limit positions.
To extend the life of the Left Front Door Power Window Motor, keep the window seals clean and lubricated with a silicone‑based spray. This reduces the load on the motor and regulator.
Avoid slamming the door with the window partially open, as this can stress the regulator mechanism. Periodically check the fasteners for tightness.
This Left Front Door Power Window Motor is designed for the left front door of the Sitrak C7H, fitting both day cab and sleeper variants. It is not compatible with other truck models.
The part numbers correspond directly to the original factory components, ensuring a seamless replacement.
Each Left Front Door Power Window Motor is tested for operational smoothness, noise level, and endurance. We simulate thousands of cycles to ensure reliability.
Our quality control includes checking the motor torque, cable tension, and fitment on a sample door, guaranteeing that every unit meets our high standards.
We keep a large inventory of Left Front Door Power Window Motor kits to ensure prompt dispatch. Most orders are shipped within 24 hours, with tracking provided.
Our global shipping network ensures you receive your part quickly, minimising downtime for your vehicle.
Replacing a failed Left Front Door Power Window Motor with our genuine part is more economical than a dealer repair. The competitive pricing and long service life make it a smart investment.
The included hardware eliminates the need for additional purchases, further reducing the total cost.
Aftermarket window motors often suffer from poor fit, weak performance, or premature failure. Our Left Front Door Power Window Motor is built to the same standards as the original, ensuring safety and reliability.
By choosing our Left Front Door Power Window Motor, you avoid the frustration and expense of frequent repairs, keeping your truck on the road.
A properly functioning Left Front Door Power Window Motor allows the driver to close the window quickly in case of rain or security concerns. It also ensures that the window can be opened for ventilation without risk of jamming.
Regular inspection of the motor and associated components helps maintain the integrity of the door closure, reducing wind noise and water ingress.
Our Left Front Door Power Window Motor uses high‑grade copper windings, precision‑cut gears, and a durable polymer housing. The design minimises friction and ensures quiet, efficient operation.
The manufacturing process includes automated winding and assembly, guaranteeing consistent quality across all units.
The Left Front Door Power Window Motor is designed for easy handling during installation, with clearly marked connectors and mounting points. The cable guides are pre‑routed to simplify assembly.
The motor features a built‑in thermal fuse to protect against overheating, adding an extra layer of safety.
We are confident in the quality of our Left Front Door Power Window Motor and offer a satisfaction guarantee. If you encounter any issues, our support team is ready to help.
Your trust is important to us, and we strive to provide products that exceed your expectations.
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.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
