Product Introduction

This differential pinion gear is a precision bevel gear manufactured from high-strength alloy steel through a process of precision forging, carburizing heat treatment, and precision grinding. It features a robust, symmetrical tooth profile designed for optimal meshing with the differential side gears, ensuring efficient torque transmission and smooth operation. The gear is engineered to withstand the high torque loads and heavy-duty operating conditions typical of heavy-duty trucks, with a black surface treatment providing enhanced wear resistance and corrosion protection. Its precision machining ensures tight tolerances, minimal backlash, and stable performance, even under prolonged heavy use.

Core Function

• Transmits torque from the differential spider (cross shaft) to the differential side gears, enabling power distribution to the drive wheels.

• Enables the differential action, allowing the left and right drive wheels to rotate at different speeds during cornering, improving vehicle handling and stability.

• Withstands high torque loads and heavy-duty operating conditions, ensuring reliable performance in demanding environments.

• Directly interchangeable with the original factory part, ensuring a precise fit and consistent performance within the differential assembly.

Gear 199014320059 Sinotruk – OEM Transmission Gear for Heavy-Duty Trucks

When your Sinotruk heavy-duty truck demands reliable power transmission, every single gear in the drivetrain matters. The Gear 199014320059 Sinotruk is a precision-engineered transmission gear designed to transfer torque smoothly, reduce drivetrain noise, and keep your fleet running without costly downtime. Sourced directly from our factory in China, this OEM-spec gear delivers the durability that procurement managers trust — at a price point that protects your bottom line.

At Mettlead, we specialize in supplying genuine-quality parts for Sinotruk HOWO truck parts and other leading Chinese truck brands. Whether you are maintaining a single vehicle or managing a large fleet, this transmission gear is built to perform under the toughest operating conditions.

Key Features and Benefits of Gear 199014320059

Choosing the right transmission gear is not just about fitment — it is about long-term reliability and total cost of ownership. Here is what makes this gear stand out:

• OEM Part Number 199014320059: Ensures precise compatibility with Sinotruk heavy-duty vehicles, eliminating guesswork during installation.
• High-Strength Alloy Steel Construction: Engineered to withstand extreme torque loads and repetitive gear meshing cycles without premature wear.
• Precision-Ground Tooth Profile: Delivers smooth power transfer, minimizes vibration, and reduces noise throughout the gear set.
• Heat-Treated Surface Hardness: Provides exceptional resistance to pitting, scoring, and fatigue — extending service life significantly.
• Factory-Direct Pricing: By sourcing directly from Mettlead, you bypass middlemen and secure competitive pricing without sacrificing quality.
• Fast and Reliable Delivery: Our streamlined logistics ensure your parts arrive on time, so your trucks stay on the road.

In other words, this gear does not just fit — it performs. And that performance translates directly into fewer breakdowns, lower maintenance costs, and higher fleet uptime for your operation.

Technical Specifications

Below you will find the detailed parameters for the Gear 199014320059 Sinotruk. These specifications help you verify compatibility and make informed purchasing decisions:

Need to cross-reference this part with your vehicle model? Browse our full Sinotruk truck parts catalog or explore more components in our rear axle and drivetrain category.

Application Scenario

The Gear 199014320059 is specifically designed for Sinotruk heavy-duty vehicles. Installed within the transmission assembly, this gear plays a critical role in the drivetrain system. Its primary function is to transmit engine power efficiently and work in coordination with the complete gear set to achieve smooth speed variation under load.

More specifically, this gear meshes with its mating components to convert rotational force into the precise output your truck needs — whether climbing steep grades, hauling heavy cargo, or cruising at highway speeds. Because it operates under constant stress, only a gear manufactured to OEM tolerances can guarantee safe and consistent performance over hundreds of thousands of kilometers.

Compatible Vehicles

• Sinotruk HOWO heavy-duty truck series
• Sinotruk SITRAK series (verify by OEM number)
• Other Sinotruk models using part number 199014320059

OEM and ODM Capabilities

As a procurement manager, you likely need more than just a single part — you need a supply partner who can adapt to your business requirements. Mettlead offers flexible OEM and ODM services tailored to the truck parts aftermarket:

• White-Label Packaging: We supply Gear 199014320059 in neutral packaging, ready for your own branding and distribution channels.
• Custom Packaging: Need specific labeling, barcoding, or branded boxes? We accommodate custom packaging requests to streamline your warehouse operations.
• Strict Quality Control: Every gear undergoes dimensional inspection, hardness testing, and surface quality checks before shipment. We do not cut corners.
• Bulk Order Support: Whether you need 10 pieces or 10,000, our production capacity scales to meet your demand without compromising lead times.
• Factory Visits Welcome: We encourage buyers to visit our facility in China to inspect production processes, quality systems, and inventory firsthand.

In short, we are not just a parts supplier — we are a long-term sourcing partner committed to helping your business grow.

Frequently Asked Questions About Gear 199014320059 Sinotruk

What is the exact function of Gear 199014320059 in the transmission?

This gear serves as a transmission component that transfers rotational power from the engine through the gearbox. It meshes with other gears in the assembly to enable speed changes and torque multiplication, which is essential for heavy-load hauling and varied driving conditions.

How do I confirm that Gear 199014320059 fits my specific Sinotruk model?

The most reliable method is to match the OEM part number 199014320059 with your vehicle’s parts manual or VIN-based lookup. If you are unsure, send us your truck model and chassis number, and our technical team will verify compatibility for you.

What material is this gear made from, and how does that affect durability?

The gear is manufactured from high-strength alloy steel that undergoes carburizing and quenching heat treatment. This process creates a hard, wear-resistant surface while maintaining a tough core — meaning the gear resists surface fatigue and can handle repeated high-torque cycles without cracking.

Can I order Gear 199014320059 in small quantities for testing?

Yes, we understand that many buyers want to evaluate quality before committing to large orders. We offer flexible minimum order quantities so you can test fitment and performance in your workshop before scaling up.

How is the gear packaged to prevent damage during shipping?

Each gear is individually wrapped with anti-rust protection and cushioned packaging to prevent impact damage during transit. For bulk orders, we use reinforced cartons or wooden crates depending on shipment size and destination requirements.

What quality inspections does this gear pass before shipment?

Every Gear 199014320059 undergoes a multi-point inspection process that includes dimensional accuracy checks, tooth profile measurement, surface hardness testing, and visual inspection for defects. Only gears that meet OEM-equivalent standards leave our facility.

Ready to Source Gear 199014320059 Sinotruk?

Stop overpaying for transmission gears through multiple intermediaries. With Mettlead, you get factory-direct access to OEM-quality Sinotruk parts, competitive pricing, and a team that understands the urgency of keeping heavy trucks operational.

Whether you need a single replacement gear or a recurring bulk supply, we are ready to support your procurement goals with fast quotes, reliable lead times, and flexible payment options.

Take the next step: Contact us today to request pricing, confirm availability, or discuss your specific requirements. Our team typically responds within 24 hours.