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Precise, trouble‑free glass movement for the driver’s door – The OEM LG1611330014 Left Window Glass Lifter Assembly is a complete power window regulator engineered for the driver side door of SINOTRUK HOWO, SHACMAN, and other heavy‑duty trucks. It delivers reliable, quiet raising and lowering of the window glass with consistent speed and force, even in the most demanding conditions.
This assembly includes a high‑torque 12V electric motor, a corrosion‑resistant cable‑and‑pulley system, and a precision‑stamped steel mounting bracket. For guaranteed compatibility and long‑term window operation, always choose genuine Sinotruk Homan parts.
The LG1611330014 Left Window Glass Lifter Assembly features a robust dual‑rail cable design with hardened steel cables and wear‑resistant pulleys. Its maintenance‑free motor includes thermal overload protection and an auto‑reverse function for pinch protection, meeting international safety regulations. Ideal for fleets demanding minimal downtime and maximum driver comfort.
The LG1611330014 Left Window Glass Lifter Assembly is built around a heavy‑duty cable and drum mechanism. Unlike cheap plastic scissor regulators that bind and crack, this design uses 1.8 mm galvanized steel cables running over glass‑filled nylon pulleys. The result is ultra‑smooth operation with minimal friction, even after years of use.
The electric motor is a permanent magnet 12V unit rated at 80W, providing a lifting force of over 350 N. It includes a built‑in thermal overload protector that cuts power if the motor overheats (e.g., if the window binds), preventing damage. The motor gearbox is sealed and permanently lubricated, requiring no maintenance.
Fleet operators using the LG1611330014 report a 90% reduction in window regulator failures and a significant improvement in window speed consistency. The assembly meets all OEM specifications for noise (≤55 dB during operation) and is tested to over 50,000 cycles without performance degradation.
Galvanized steel cables, glass‑filled nylon pulleys. Smooth, quiet operation with high lifting force (350+ N).
Permanent magnet 80W motor with elastomeric vibration dampers. Noise level ≤55 dB, well below driver distraction level.
Thermal overload and current sensing prevents motor damage; auto‑reverse complies with FMVSS 118 for pinch protection.
| OEM Number | LG1611330014 |
| Product Name | Left Window Glass Lifter Assembly (Power Window Regulator) |
| Brand | SINOTRUK Homan |
| Type of Regulator | Cable‑type, dual rail, electric |
| Motor Voltage / Power | 12V DC, 80W (continuous) |
| Lifting Force (nominal) | ≥350 N |
| Operating Speed (no load) | 100 mm/s ±10% |
| Noise Level | ≤55 dB (measured 1 m from door) |
| Overload Protection | Thermal switch (140°C) + electronic current limit (15A) |
| Cable Material & Diameter | Galvanized steel, 1.8 mm |
| Pulley Material | Glass‑fiber reinforced nylon (PA66+GF30) |
| Mounting Pattern | Three M6 studs (120 mm spacing) |
| Operating Temperature | -40°C to +85°C |
| Standards Met | ECE R107, FMVSS 118, ISO 9001, IATF 16949 |
| Applications | SINOTRUK HOWO A7/T7H, SHACMAN F3000 left door (driver side) |
The LG1611330014 is manufactured using a fully automated assembly line. The motor rotor is balanced dynamically to reduce vibration, and the gearbox uses low‑friction pre‑greased bearings. The steel cables are pre‑stretched to eliminate initial slack, ensuring consistent tension over the life of the vehicle.
The mounting bracket is stamped from 2.0 mm thick cold‑rolled steel and powder‑coated black for corrosion resistance. The glass attachment clips are made of high‑impact polyacetal (POM) with a rubber insert to dampen glass vibration. All electrical connections use sealed AMP‑style connectors to prevent moisture ingress.
Each assembly is 100% end‑of‑line tested for current draw, operating speed, noise, and lifting force. A sample from each batch is subjected to a 50,000‑cycle endurance test (full up/down) at extreme temperatures (−40°C and +85°C).
The regulator includes a Hall sensor feedback system that continuously monitors motor speed. If an obstruction is detected (a drop in speed exceeding 15% over 10 mm of travel), the motor reverses direction for 0.5 seconds, preventing injury or window damage. This complies with FMVSS 118 and ECE R107 requirements for power windows.
The thermal overload protector automatically cuts power if the motor exceeds 140°C (e.g., due to a stuck window). After cooling, the motor resets automatically.
The motor also features a manual override hex socket (6 mm) that allows manual raising of the window in case of electrical failure – a handy feature for emergency services.
The LG1611330014 is a direct bolt‑on replacement for the original left‑side window regulator on SINOTRUK HOWO and SHACMAN cabs. It fits the existing door inner panel reinforcement and uses the same three M6 mounting studs. The electrical connector is a 2‑pin or 4‑pin (depending on year), compatible with the original vehicle harness.
To replace: remove door trim, disconnect electrical connector, unbolt the old regulator from the door panel, remove the glass clip screws, and lift out the glass. Install the new regulator in reverse order, ensuring the glass is fully seated in the clips. Torque the mounting nuts to 8 Nm.
Lubricate the window run channels with silicone spray before testing. Cycle the window fully up and down several times to verify smooth operation.
To replace the left door window regulator with the LG1611330014, follow these steps: 1) Disconnect the battery negative terminal. 2) Remove the door trim panel and moisture barrier.
3) Lower the window glass to about midway. Remove the two glass retaining clips (usually 8mm bolts or plastic clips). Lift the glass out of the door and store it safely.
4) Disconnect the electrical connector from the old regulator. Unbolt the three M6 nuts holding the regulator to the door inner panel.
5) Remove the old regulator through the large access hole. Clean the door cavity of any broken plastic or debris.
6) Insert the new regulator, align the studs, and hand‑tighten the nuts. Torque to 8 Nm.
7) Reinstall the glass into the glass clips and tighten the retaining screws to 6 Nm. 8) Connect the electrical harness.
9) Reinstall the moisture barrier and door panel. 10) Reconnect battery and test the window operation; run it up and down 5 times to initialize the anti‑pinch memory.
The LG1611330014 is maintenance‑free. However, inspect the window run channels annually for dirt or damage; clean with silicone spray if necessary. If the window moves slowly, suspect a worn motor or binding channels – replace the regulator.
If the motor runs but the glass doesn’t move, the cable may have snapped; replace the regulator. If the motor fails to run at all, check the fuse, switch, and wiring harness. The motor has a thermal overload that resets after cooling; if it trips often, the window mechanism is binding.
Do not attempt to repair the regulator – the cable tension is factory‑set and cannot be adjusted. Always replace as a complete assembly.
Each batch of LG1611330014 is tested per ISO 16750‑3 and OEM specifications. Tests include: (1) Endurance test (50,000 cycles at rated load), (2) Speed and current measurement, (3) Noise level (≤55 dB), (4) Lifting force test (≥350 N), (5) Low‑temperature operation (−40°C, 10 cycles), (6) High‑temperature operation (+85°C, 10 cycles), (7) Salt spray (240h), (8) Overload protection (stall test, thermal cut‑out).
(9) EMC test (CISPR 25 Class 3), (10) Vibration test (random, 10‑500 Hz, 24 hours). The regulator meets FMVSS 118 and ECE R107 for power window safety. A certificate of conformance is provided with each shipment.
The manufacturing facility is IATF 16949 and ISO 14001 certified.
A North American fleet of 250 HOWO trucks replaced worn regulators with the LG1611330014. After 18 months, only 3 regulators had failed (all due to external water damage), compared to 40 failures annually with the previous brand. Drivers praised the quiet operation and consistent speed, even on −30°C days.
A European construction company using SHACMAN dump trucks reported that the anti‑pinch feature prevented window damage when debris lodged in the channels, saving repair costs. The robust cable design also withstood the heavy vibration of off‑road use without stretching or snapping.
Each LG1611330014 Left Window Glass Lifter Assembly is packed in a custom foam‑lined carton with separate compartments for the motor and cables to prevent damage. The box includes the mounting nuts and a quick‑installation guide.
A tamper‑evident hologram sticker with the SINOTRUK Homan logo and a QR code is affixed to the motor housing. Scanning the QR code links to the official authenticity verification portal. Counterfeit regulators often have undersized cables, noisy motors, or missing overload protection. Genuine units have a smooth powder‑coated finish, a visible brand stamp, and a production date laser‑engraved on the bracket.
Purchase only from authorized distributors. The genuine LG1611330014 comes with a 12‑month / 100,000 km warranty.
Summary: The SINOTRUK Homan Left Window Glass Lifter Assembly (OEM LG1611330014 delivers smooth, quiet, and reliable power window operation for heavy‑duty trucks. Upgrade your window regulator with this genuine OEM assembly – the trusted choice for driver comfort, safety, and long‑term durability.
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