Transmission Assembly for Sinotruk HOWO Truck Gearbox Spare Parts
Sinotruk HW series transmissions share several common structural features:
Twin countershaft main box + planetary range box: Both the main box and the range box adopt a twin countershaft structure, providing strong load-carrying capacity and reliable construction. The range box is a planetary reduction structure, suitable for heavy-load starting and hill-climbing conditions.
Helical gear design (some models): Series such as the HW16XSTL use helical gears, resulting in lower operating noise.
Combined forced lubrication and splash lubrication: Provides more thorough lubrication and adapts to a variety of road conditions.
Integrated gear selection and shifting design: Clear gear positions and flexible shifting; control forms can be single-rod, double-rod, or direct operation.
Lightweight options: Some models offer a full aluminum housing, featuring a compact structure and light weight.
Product Parameters
|
Item |
engine |
Item |
engine |
| Purpose | for replace/repair | Condition | New |
| OE NO. | HW19710100625 | Place of Origin | China |
| Shandong | Material | Standard | |
| Type | Transmission Assembly | Model Number | HW19710100625 |
| Reference NO. | SINOTRUK | Truck Model | HOWO |
| Product Name | Transmission Assembly | Part Number | HW19710100625 |
| MOQ | 2 Pcs | OEM | Support |
| Application | WD615 Engine | Payment | T/T |
| Packing | Standard Package | Shipping Ways | Air Sea Land Express |
| Delivery Time | 7-30 Days | Quality | Original |
Introduction
This remanufactured transmission assembly with OE number HW19710100625 is a high-performance replacement gearbox specially designed for Sinotruk HOWO heavy-duty trucks equipped with WD615 diesel engines.
All core components including gear sets, synchronizers, shafts and bearing seats undergo full disassembly, precision grinding, wear detection and brand-new part replacement during remanufacturing, reaching the original factory assembly standard. The gearbox adopts high-strength alloy steel gears and wear-resistant copper synchronizer rings, delivering stable power output, smooth gear shifting and strong load-bearing capacity under heavy-load climbing, mine transportation and long-distance highway driving conditions.
Each gearbox completes strict bench running-in and load pressure testing before delivery to eliminate oil leakage, abnormal noise and gear slipping risks. Independent shockproof wooden case packaging is adopted to avoid collision damage during cross-border sea, air and land transportation. We support flexible payment methods including T/T and PayPal, together with multiple global shipping solutions, which perfectly meets bulk procurement and after-sales maintenance demands of Sinotruk spare parts dealers worldwide.
Product Details
• Drive gear set: Forged alloy steel, quenched and tempered for high surface hardness, anti-wear and anti-fracture;
• Synchronizer assembly: Brass cone ring with friction coating, realizing smooth shift without jamming under low and high speed;
• Sealing system: High-temperature resistant fluorine rubber oil seals, effectively preventing gear oil leakage under long-time high-temperature operation.
Product Application
• Long-distance highway logistics: Intercity semi-trailer tractors, container transport vehicles with continuous high-speed driving demand;
• Special commercial vehicles: Concrete mixer trucks, heavy sanitation vehicles powered by WD615 engine.
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