611600070100 Countershaft Overdrive Gear Countershaft 5th Gear For Shacman Delong X3000 M3000 Truck Gearbox Transmission System
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High-strength gear structure: The 611600070100 countershaft overdrive gear is designed for heavy-duty truck manual transmissions, capable of withstanding significant transmission loads and continuous meshing impacts.
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Helical gear design: This Shacman delong X3000 M3000 truck spare parts countershaft overdrive gear features helical teeth that mesh progressively, resulting in smoother power transmission, reduced noise and higher load-bearing capacity.
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Stable transmission: The 611600070100 countershaft 5th gear works in conjunction with the countershaft, other gears and synchronizers to facilitate power transmission. Its precise tooth profile and meshing characteristics ensure smooth transmission operation while minimizing abnormal noise and gear impact.
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Power splitting: The Shacman Delong truck countershaft 5th gear utilizes a dual-countershaft design, splitting power between two countershafts. This distributes the torque load, enhancing the gear's durability and reliability under heavy-load or uphill driving conditions.
| Product Name |
611600070100 Countershaft Overdrive Gear Countershaft 5th Gear |
Speeds | 14-Speed |
| Part Number | 611600070100 | Cooling System |
Oil Cooled |
| Type | Drive Shafts | Torque Capacity | 2500 lb-ft |
| Supply Ability | 32341PCS | Single package size | 18X18X8 cm |
| Application | Fast Transmission Spare Parts | Single gross weight | 3.000 kg |
| Material |
Cast Iron alloy steel |
Trademark | Fast |
| Efficiency | Dual Plate Clutch | Keyword | Driven Gear |
| No. | Part Number | Applicable Models | Products Name |
| 1 | 12JSD200T-1707051 | Shacman Delong | Auxiliary Countershaft Assembly |
| 2 | 1701048 1701049 | Left Right Countershaft | |
| 3 | 12JSDX240TA-1701113 | Fast Transmission Gearbox Gear Accessories | |
| 4 | 12JS200T-1701112 | FAW Dongfeng | Secondary Shaft 2nd Gear |
| 5 | 12JSD200T-1707106 | Heavy Duty Truck | Reduction Gear |
| 6 | 12JSD160T-1707030 | Auxiliary Gearbox Drive Gear | |
| 7 | AZ2210100124 | Sinotruk howo | Range Gear Sleeve |
Product and Packaging
- Compatibility:Widely used in heavy-duty trucks such as Shacman, Sinotruk and Auman, these gears are installed on the transmission's countershafts. They mesh with the corresponding gears on the main shaft to facilitate power transmission and gear ratio conversion for fifth gear.
- Direct Replacement:If issues such as abnormal noise or gear clashing in fifth gear, tooth surface spalling, spline wear, excessive backlash, overheating/scoring, insufficient transmission fluid, poor lubrication or metal contamination in the gear oil occur, the gears must be replaced in pairs using OEM-specification parts.
- Packaging: carton packing and wooden box packing.For example:
Maintenance Points
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This transmission features a dual-countershaft design; therefore, the two countershaft gears must be replaced as a matched pair during repair replacing only one is prohibited.
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The gears are installed using a thermal press-fit method, requiring strict control over temperature and pressure during assembly.
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Before assembly, inspect the gear surfaces for nicks or damage and thoroughly clean away any metal filings or debris.
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Also, inspect the wear condition of the fifth-gear synchronizer, if damaged, it must be replaced along with the gears.
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After assembly, thoroughly clean the transmission and replace the gear oil with fresh fluid.
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During the post-repair road test, pay special attention to fifth-gear performance to verify the absence of abnormal noise or gear-jumping issues.
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