Product Introduction

• Structure: A precision-machined solid steel shaft with a hardened surface for wear resistance. It features precision-machined positioning slots along its length for secure gear and fork retention, and a smooth cylindrical body to support rotating components.

• Performance: The high-strength steel construction withstands the high torque and radial loads of heavy-duty operation, ensuring stable gear alignment and reliable power transmission. The hardened surface resists abrasion from gear rotation, maintaining dimensional accuracy over long service life.

Core Function

1. Gear & Fork Support: Provides a stable, precise mounting point for transmission gears and shift forks, ensuring they remain aligned for smooth meshing and actuation.

2. Torque Transmission: Transmits rotational torque through the gear train, maintaining consistent power flow even under heavy load.

3. Wear Resistance: The hardened surface treatment resists wear from gear and fork movement, maintaining shaft integrity even under prolonged heavy use.

Gear Shaft L=292.5 WG7117329068 – Genuine Sinotruk Sitrak Transmission Part

When your Sitrak heavy-duty truck demands precise power delivery through the gearbox, every single component matters — especially the gear shaft. This Gear Shaft WG7117329068 with a total length of 292.5 mm is engineered to handle extreme torque loads while maintaining smooth, reliable gear engagement. Sourced directly from our factory supply chain, it delivers OEM-grade performance at a competitive price that procurement managers genuinely appreciate.

At Mettlead, we specialize in supplying authentic Chinese heavy-duty truck parts to customers worldwide. As a result, you get factory-direct pricing, strict quality assurance, and fast delivery — without sacrificing the precision your fleet depends on.

Key Features and Benefits of Gear Shaft WG7117329068

This gear shaft isn’t just another replacement part sitting on a shelf. It’s a carefully manufactured transmission component that plays a critical role in transferring rotational force within the gearbox assembly. Here’s why procurement teams consistently choose it:

• Exact OEM Specification: Manufactured to match Sinotruk’s original design parameters, ensuring seamless fitment without modifications.
• Optimized Shaft Length (292.5 mm): Precision-ground to maintain correct gear mesh distance, which directly prevents premature wear and noise.
• High-Strength Alloy Steel: Heat-treated for superior hardness and fatigue resistance, so it withstands continuous heavy-load operation.
• Smooth Surface Finish: Fine-machined bearing journals reduce friction, extend service life, and contribute to overall gearbox efficiency.
• Factory-Direct Pricing: Because we cut out unnecessary middlemen, you receive genuinely competitive costs that improve your bottom line.
• Strict Quality Control: Every shaft undergoes dimensional inspection and hardness testing before it leaves our warehouse.

In other words, this gear shaft helps you minimize unplanned downtime, reduce maintenance costs, and keep your Sitrak trucks moving on schedule.

Technical Specifications – Gear Shaft WG7117329068

Accurate specifications matter when you’re sourcing transmission components. Below you’ll find the detailed parameters for this Sinotruk Sitrak gear shaft:

If you need additional dimensional data — such as spline count, journal diameter, or tolerance grades — our technical team is ready to provide full engineering drawings upon request.

Application Scenario – Where This Gear Shaft Belongs

This Gear Shaft L=292.5 WG7117329068 is specifically designed for the transmission system of Sinotruk Sitrak heavy-duty trucks. It functions as a core rotating element inside the gearbox, transferring engine torque between gear pairs and enabling smooth speed ratio changes.

More specifically, it is suitable for:

• Sitrak C7H series heavy-duty tractor units used in long-haul logistics
• Sitrak C5H series trucks configured for regional distribution and construction haulage
• Gearbox assemblies where the original WG7117329068 shaft requires replacement due to wear, fatigue cracking, or spline damage

Consequently, fleet operators, repair workshops, and parts distributors across Africa, Southeast Asia, the Middle East, and Central Asia rely on this exact part number to keep their Sitrak trucks operational. For a complete overview of compatible Sitrak components, browse our Sitrak Heavy-Duty Parts catalog.

OEM/ODM Capability and Custom Packaging

We understand that different markets have different requirements. That’s precisely why Mettlead offers flexible options beyond standard supply:

• White-Label Packaging: Want to sell under your own brand? We provide neutral or custom-branded packaging tailored to your specifications.
• Custom Packaging Design: Whether you need individual blister packs, bulk cartons, or branded boxes with multilingual labels — we handle it.
• OEM-Matched Quality: Our gear shafts meet original equipment standards. Additionally, we can source alternative grades if your market demands a specific price point.
• Batch Consistency: Strict incoming material inspection and outgoing quality checks ensure every batch performs identically.

Furthermore, we welcome customers to visit our facilities in China for quality audits and face-to-face discussions. Transparency builds trust, and we’re confident in what we deliver.

Frequently Asked Questions – Gear Shaft WG7117329068

What is the exact function of gear shaft WG7117329068 in the gearbox?

This gear shaft serves as a rotating support element that carries one or more gears within the Sitrak transmission housing. It transmits torque from the input side to the output side, enabling the driver to select different speed ratios. Without a properly functioning gear shaft, you’d experience gear slippage, abnormal noise, or complete transmission failure.

How can I verify that WG7117329068 fits my specific Sitrak truck model?

The most reliable method is to cross-reference the OEM part number WG7117329068 against your vehicle’s gearbox assembly parts list. If you’re unsure, simply send us your truck’s VIN or gearbox model number, and our technical team will confirm compatibility for you.

What causes a gear shaft to fail prematurely?

Common failure causes include insufficient lubrication, contaminated gearbox oil, overloading beyond rated torque capacity, and improper installation alignment. Additionally, using low-quality replacement shafts with incorrect heat treatment can lead to surface pitting and fatigue cracks far earlier than expected.

Is this gear shaft heat-treated, and why does that matter?

Yes, it undergoes carburizing and quenching processes to achieve a surface hardness of HRC 58–62 while maintaining a tough core. This combination is essential because the shaft surface must resist wear from gear meshing contact, while the core needs to absorb shock loads without cracking.

Can I order a small trial quantity before committing to bulk?

Absolutely. We encourage trial orders so you can inspect quality firsthand. Once you’re satisfied with the fitment and material quality, scaling up to larger quantities is straightforward. Just contact us with your requirements.

How should I store this gear shaft before installation?

Keep it in its original packaging, stored in a dry and ventilated environment away from corrosive substances. Apply a thin layer of anti-rust oil on exposed machined surfaces if long-term storage exceeds three months. This prevents surface oxidation that could affect fitment.

Explore More Sinotruk Sitrak Gearbox Parts

The gear shaft WG7117329068 is just one component in a complex transmission system. If you’re sourcing multiple gearbox parts — such as synchronizer rings, bearings, shift forks, or output shafts — you’ll find our organized catalog extremely useful:

• Browse all Gearbox & Transmission Parts
• Explore the full Sinotruk Sitrak Truck Parts Category Guide
• See all available Sitrak brand parts from factory direct

Get Your Competitive Quote Today

Finding the right gear shaft at the right price shouldn’t be complicated. Whether you need a single piece for urgent repair or bulk quantities for inventory restocking, Mettlead delivers factory-direct pricing with reliable quality and fast logistics.

Ready to move forward? Send us your part number, required quantity, and destination country — and we’ll respond with a detailed quotation within 24 hours. Flexible payment methods and trade assurance options are available to keep your procurement process smooth and secure.

Contact Mettlead now to request your quotation →