8JS125TA — Single H Operation Gearbox 1250Nm Input

8JS125TA is a heavy duty manual gearbox with single H shift layout, designed with 1250Nm input torque capacity.

It adopts 8 forward and 2 reverse gears, delivering stable power output and smooth gear shifting.

This gearbox is widely matched to mainstream heavy-duty trucks and engineering vehicles, perfectly suitable for long haul transportation, construction and mining working conditions. Made strictly to OEM standard, it is a direct replacement assembly.

If you are not sure about the matching model, just send us your vehicle model or relevant parameters, we will check the compatibility for you.

The gearbox housing is made of high strength cast iron, solid and shock resistant, not easy to deform under heavy load.

Internal gears and shafts are forged from high quality alloy steel, processed by precision grinding, with strong wear resistance and fatigue resistance.

Equipped with reliable synchronizer and high quality sealing parts, it ensures flexible single H gear operation, smooth shifting without stuck gear.

Good heat dissipation and oil sealing performance effectively prevent oil leakage, keeping stable working state even under long-time heavy load and complex road conditions.

The whole production process includes precision forging, CNC machining, heat treatment, precise assembly and running-in test.

Every production link is under strict quality control.

Each finished gearbox will pass strict loading test, noise detection, shifting smoothness and sealing inspection before delivery.

Only qualified products can be arranged shipment. Every unit is stamped with batch code for complete traceability.

With reasonable structural design and high-quality accessories, this 8JS125TA gearbox has long service life, adapting to frequent shifting and heavy load operation.

It is not easy to have failure such as gear jumping, oil leakage and abnormal noise.

Replacing with this original standard gearbox can recover vehicle power performance, reduce maintenance frequency, and avoid transport downtime and economic loss caused by gearbox failure.

It is reliable and cost-effective for fleet maintenance and parts replacement.

We keep 8JS125TA gearbox in stock all year round for fast delivery.

Bulk orders can be completed within 7–10 days.

MOQ is 1 piece for sample order. For wholesale, quantity is flexible, and better price is available for large quantity purchase.

This 1250Nm single H operation gearbox is widely used on heavy-duty trucks, cargo vehicles, dump trucks and engineering machinery. It fits for long-distance logistics, construction site operation and mountain mining transportation.

Our products are exported steadily to Central Asia, Russia, Africa, Southeast Asia and Middle East markets, deeply recognized by repair shops, fleet managers and parts distributors.

1.Can you confirm fitment by vehicle model?

  Yes. Send us your truck model or related parameters, we will give you reply within 24 hours.

2.Why choose this gearbox over ordinary ones?

 It adopts high strength material, standard manufacturing process and mature single H shift structure. Stable performance, smooth shifting and longer service life under heavy load.

3.Is installation difficult?

  No. It is a complete assembly with standard mounting size and interface, direct installation without cutting or modification.

4.Can I order a sample first?

  Sure. Sample order is available, and the sample cost can be deducted from later bulk order.

5.What payment methods do you accept?

We accept T/T, L/C, Western Union, VTB and other common international payment methods.

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