Product Introduction

• Structure: An integral precision-forged gear made from high-strength nickel-chromium alloy steel, with a helical external tooth profile and an internal spline bore. The tooth surface undergoes carburizing, quenching, and precision grinding for maximum hardness (HRC58-62) and a smooth meshing surface. The reinforced hub design enhances torque capacity, and the surface is treated with a corrosion-resistant black oxide coating.

• Performance: The high-hardness tooth surface withstands extreme torque and impact forces, while the helical tooth design ensures smooth, quiet power transmission with reduced vibration. The integral forging and reinforced hub provide exceptional torsion resistance, preventing deformation or fracture under heavy load. The precision-ground teeth minimize backlash and ensure efficient power transfer.

Core Function

1. Primary Torque Input: Transmits rotational torque directly from the engine’s clutch to the transmission countershaft, initiating the power flow through the gearbox.

2. Smooth Power Transfer: The helical tooth profile ensures gradual meshing with the countershaft gear, reducing noise and vibration for a smoother driving experience.

3. Heavy-Duty Load Handling: The high-strength alloy steel and reinforced hub design safely handle the extreme torque of heavy-duty operation, ensuring reliable performance under full load.

Gearbox First Shaft Gear 12JSDX240TA-1707030 Shacman – Factory Direct Supply

When your Shacman heavy-duty truck demands peak transmission performance, the Gearbox First Shaft Gear 12JSDX240TA-1707030 stands as the critical component that keeps everything moving. Engineered specifically for Fast gearbox systems, this first shaft gear delivers reliable torque transfer under the most demanding operating conditions. At Mettlead, we supply this precision-machined transmission component directly from our factory in China, which means you get OEM-equivalent quality at a price that makes your procurement budget work harder.

Whether you are maintaining a fleet of Shacman trucks or sourcing replacement gearbox parts for your aftermarket business, this first shaft gear is manufactured to exact OEM specifications. As a result, it integrates seamlessly into the 12JSDX240TA gearbox assembly without any modification required.

Key Features and Benefits of the 12JSDX240TA-1707030 First Shaft Gear

Choosing the right first shaft gear is not just about finding a matching part number. It is about ensuring durability, precision, and long-term reliability for your Shacman trucks. Here is what sets our Gearbox First Shaft Gear 12JSDX240TA-1707030 apart:

• Precision-Forged Construction – Each gear is crafted from high-strength alloy steel, then heat-treated to achieve optimal surface hardness. Consequently, it resists wear and fatigue even under continuous heavy loads.
• OEM-Spec Tooth Profile – The gear tooth geometry matches original equipment dimensions precisely. This ensures smooth meshing, reduces noise, and minimizes vibration throughout the entire transmission system.
• Extended Service Life – Thanks to advanced carburizing and quenching processes, the gear surface reaches the ideal hardness range. Therefore, you can expect significantly longer intervals between replacements.
• Perfect Fitment Guaranteed – Designed exclusively for the Fast 12JSDX240TA gearbox platform, this shaft gear drops into place without machining or adaptation.
• Strict Quality Control – Every batch undergoes dimensional inspection, hardness testing, and surface finish verification before shipment. In other words, you receive only parts that meet our rigorous standards.
• Cost-Effective Procurement – Because we source directly from the production line, there are no middlemen inflating your costs. You benefit from true factory-direct pricing.

Technical Specifications – Gearbox First Shaft Gear 12JSDX240TA-1707030

Below you will find the detailed technical parameters for this Shacman gearbox first shaft gear. These specifications help you verify compatibility and confirm the part meets your operational requirements:

Application Scenario – Where This First Shaft Gear Fits

The Gearbox First Shaft Gear 12JSDX240TA-1707030 is specifically engineered for the Shacman heavy-duty truck series equipped with the Fast 12JSDX240TA transmission. In practical terms, this gear serves as the input shaft gear that receives engine torque and transmits it into the gearbox gear train. Without a properly functioning first shaft gear, your entire transmission system loses efficiency and, ultimately, reliability.

More specifically, this part is suitable for:

• Shacman X3000 series heavy-duty trucks with Fast 12-speed gearbox configurations
• Shacman F3000 series logistics and construction vehicles using the 12JSDX240TA transmission
• Fleet maintenance programs requiring bulk replacement of high-wear transmission components
• Aftermarket distributors stocking Fast gearbox spare parts for the Shacman platform

If you are sourcing other components for Fast gearbox systems, feel free to explore our complete range of Fast gearbox parts or browse our full gearbox components catalog for additional options.

OEM/ODM Capability – Custom Packaging and White-Label Solutions

At Mettlead, we understand that every distributor and fleet operator has unique branding and packaging needs. That is precisely why we offer flexible OEM and ODM services for the Gearbox First Shaft Gear 12JSDX240TA-1707030 Shacman and all our other transmission components:

• White-Label Packaging – We can supply this first shaft gear in neutral packaging, ready for your own brand labels. This allows you to build your aftermarket brand without manufacturing overhead.
• Custom Packaging Design – Need your company logo, part number, and barcode on the box? We handle that. Simply provide your artwork, and we take care of the rest.
• Bulk Order Flexibility – Whether you need 10 pieces or 10,000, our production capacity scales to meet your demand. Moreover, we maintain safety stock on popular part numbers to shorten lead times.
• Quality Documentation – Each shipment can include certificates of conformity, material test reports, and inspection records as needed for your import requirements.

In addition, we welcome buyers to visit our facility in China for on-site inspection. Seeing our quality control processes firsthand gives you the confidence to commit to long-term partnership.

Customer Case Study – Gearbox First Shaft Gear 12JSDX240TA-1707030 in Action

Earlier this year, a fleet management company in West Africa reached out to us with an urgent requirement. They operated over 80 Shacman trucks on mining haul routes, and premature gearbox failures were cutting into their uptime. After diagnosing the issue, their mechanics identified the first shaft gear as the primary point of failure in several units.

They needed a reliable supply of the Gearbox First Shaft Gear 12JSDX240TA-1707030 Shacman — and they needed it fast. Within 48 hours of receiving their inquiry, our team confirmed stock availability, provided competitive pricing for a batch of 50 pieces, and arranged express shipment.

Once installed, the replacement first shaft gears performed flawlessly. The fleet manager reported smoother shifting, reduced transmission noise, and — most importantly — zero repeat failures over the following six months. As a result, they now source all their Fast gearbox components through Mettlead on a quarterly basis.

This is exactly the kind of partnership we build: reliable parts, responsive service, and pricing that protects your bottom line.

Frequently Asked Questions – Gearbox First Shaft Gear 12JSDX240TA-1707030

What is the function of the first shaft gear in the 12JSDX240TA gearbox?

The first shaft gear, also called the input shaft gear, sits at the front of the transmission. It receives rotational force directly from the engine clutch assembly and transfers it into the gearbox gear train. Essentially, it is the entry point for all power flowing through your transmission. If this gear wears out or develops damage, you will notice difficulty engaging gears, abnormal noise, and reduced power delivery.

How do I know when to replace the 12JSDX240TA-1707030 first shaft gear?

Common signs include grinding or whining noises when the transmission is in neutral, difficulty shifting into first or second gear, metal shavings in the gearbox oil, and excessive backlash during gear engagement. If your driver reports any of these symptoms, it is wise to inspect the first shaft gear during the next maintenance window.

Is this gear compatible with all Shacman truck models?

This specific part number — 12JSDX240TA-1707030 — is designed for Shacman trucks equipped with the Fast 12JSDX240TA gearbox. Before ordering, please confirm your vehicle’s transmission model number to ensure proper fitment. If you are unsure, simply send us your truck VIN or gearbox nameplate photo, and our team will verify compatibility.

What material is used, and how does it affect durability?

Our Gearbox First Shaft Gear 12JSDX240TA-1707030 is manufactured from high-strength alloy steel. After forging and CNC machining, it undergoes a carburizing heat treatment process. This creates a hardened outer layer (HRC 58–63) that resists surface wear, while the core remains tough enough to absorb shock loads. The combination means longer service life under heavy-duty operating conditions.

Can I order a small quantity for testing before committing to bulk?

Absolutely. We understand that procurement managers need to verify quality before scaling up orders. We offer flexible minimum order quantities so you can test our Shacman gearbox first shaft gear in your application. Once you are satisfied with the performance, transitioning to bulk orders is straightforward.

How should I store replacement first shaft gears to prevent damage?

Store the gear in its original packaging in a dry, cool environment away from direct sunlight and moisture. Apply a thin layer of anti-rust oil if long-term storage is planned. Avoid stacking heavy items on top of the packaging, as this could damage the precision-ground tooth surfaces.

Get Your Quote for the Gearbox First Shaft Gear 12JSDX240TA-1707030 Shacman

Ready to secure factory-direct pricing on the Gearbox First Shaft Gear 12JSDX240TA-1707030? Our team responds to inquiries within 24 hours with confirmed pricing, lead time, and shipping options tailored to your location.

Here is what to include in your inquiry for the fastest response:

1. Required quantity
2. Destination country and port
3. Preferred packaging (neutral or custom)
4. Any additional Fast gearbox parts needed

Contact us today to request your personalized quotation. Let Mettlead be your trusted source for Shacman gearbox components — from first shaft gears to complete transmission rebuild kits.