Product Introduction

This rear axle final drive housing is a heavy-duty cast iron component, precision-machined to serve as the core structural foundation of the rear axle main reducer. It is designed to securely house and position the spiral bevel gear set (ring and pinion), the differential assembly, and all associated bearings and seals. The housing features a robust, rib-reinforced design to withstand the extreme torque loads, vibration, and mechanical stresses generated during heavy-duty operation. Precision-machined mounting surfaces and bolt holes ensure accurate alignment of internal components, while the integrated bearing bores and seal grooves maintain proper preload and sealing integrity. Its black cast iron construction provides exceptional durability and resistance to impact, fatigue, and corrosion, making it suitable for the demanding conditions of heavy commercial vehicle operation.

Core Function

• Serves as the primary structural enclosure and mounting platform for all rear axle final drive components, including the spiral bevel gear set, differential assembly, bearings, and seals.

• Maintains precise dimensional alignment of the gear set and differential, ensuring efficient meshing, minimal backlash, and optimal power transmission efficiency.

• Withstands and distributes the high torque loads and mechanical stresses generated during heavy-duty operation, protecting internal components from damage.

• Provides a sealed, oil-retaining cavity to ensure proper lubrication of gears and bearings, while preventing the ingress of dirt, water, and other contaminants.

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

Housing Of Rear Axle Driver 199012320098 – Genuine Sinotruk Replacement Part

When your heavy-duty truck’s rear axle demands a reliable, precision-engineered housing, the Housing Of Rear Axle Driver 199012320098 stands ready to deliver. Designed specifically for Sinotruk HOWO vehicles, this rear axle driver gear housing protects critical drivetrain components while ensuring a leak-free seal under the toughest operating conditions. At Mettlead, we supply this genuine-spec part directly from our factory in China — so you get uncompromising quality at a price that makes your procurement budget work harder.

Why This Rear Axle Driver Housing Matters for Your Fleet

The rear axle driver housing is far more than a simple metal casing. It serves as the structural backbone of your truck’s rear axle assembly, cradling the drive pinion gear and bearing set while shielding them from road debris, moisture, and contaminants. Without a properly manufactured housing, you risk oil leaks, premature bearing failure, and costly unplanned downtime.

Key Functions and Benefits

• Drivetrain Protection: Encases the rear axle’s active drive gear (主动齿轮), preventing external damage and extending component lifespan.
• Leak-Proof Sealing: Precision-machined mating surfaces and seal grooves keep gear oil exactly where it belongs — inside the axle assembly.
• Load-Bearing Strength: Engineered from high-grade cast iron to withstand the immense torque loads generated by Sinotruk heavy-duty powertrains.
• Dimensional Accuracy: Manufactured to OEM tolerances, ensuring a perfect fit with bearings, seals, and companion flanges without modification.
• Corrosion Resistance: Surface-treated to resist rust and oxidation, even in humid or salt-spray environments common in coastal and tropical regions.

Application Scenarios

This Housing Of Rear Axle Driver 199012320098 is purpose-built for the following applications:

• Compatible Vehicles: Sinotruk HOWO heavy-duty trucks and related SINOTRUK platform vehicles.
• Primary Function: Houses the rear axle drive pinion gear assembly (后桥主动齿轮壳体).
• Protection Role: Shields transmission components from impact, contamination, and environmental exposure.
• Sealing Role: Prevents gear oil leakage, maintaining proper lubrication levels and reducing maintenance frequency.

Whether your trucks haul construction materials across rugged terrain or transport goods over long-distance highways, this housing keeps the rear axle assembly running smoothly — mile after mile.

Technical Specifications

OEM/ODM Capability – Tailored to Your Business Needs

At Mettlead, we understand that every market has unique requirements. That’s why we offer flexible manufacturing and branding options for the Housing Of Rear Axle Driver 199012320098:

• White-Label Packaging: Receive parts in neutral packaging, ready for your own branding and distribution channels.
• Custom Packaging: We can print your logo, part numbers, and brand identity directly on the box — helping you build brand recognition in your local market.
• Strict Quality Control: Every housing undergoes dimensional inspection, surface quality checks, and material verification before shipment.
• Bulk Order Support: Whether you need 10 pieces or 10,000, our factory scales production to meet your timeline.

Moreover, we welcome international buyers to visit our facility in China for on-site inspection and quality audits. Seeing our production line firsthand gives you the confidence that every part meets your standards.

Why Source From Mettlead?

• Factory-Direct Pricing: No middlemen, no inflated margins — just competitive wholesale rates straight from the source.
• Complete Parts Range: Beyond this rear axle housing, we supply thousands of parts for SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON vehicles.
• Fast and Reliable Delivery: Established logistics partnerships ensure your orders arrive on schedule, wherever you are in the world.
• Flexible Payment Methods: We support multiple secure payment options to suit your company’s financial processes.

Explore our full range of Sinotruk HOWO Truck Parts, browse our Rear Axle Parts Category, or view our comprehensive Sinotruk Truck Parts Catalog to find everything your fleet needs in one place.

Frequently Asked Questions (FAQ)

What exactly does the Housing Of Rear Axle Driver 199012320098 do?

This housing encases and protects the rear axle’s drive pinion gear. It provides structural support for the bearings, maintains proper gear alignment, and creates a sealed environment that prevents gear oil from leaking out while keeping contaminants from getting in.

Which vehicles does this rear axle driver housing fit?

The part number 199012320098 is designed for Sinotruk HOWO heavy-duty trucks. If you’re unsure whether it fits your specific model or axle configuration, feel free to send us your VIN or axle model number for confirmation.

How can I tell if my rear axle driver housing needs replacement?

Common signs include persistent oil leaks around the pinion seal area, unusual noise from the rear axle during acceleration, visible cracks or damage on the housing surface, and excessive play in the drive pinion bearing — all of which suggest the housing may be worn or compromised.

Is this an OEM-quality part or aftermarket?

This housing is manufactured to OEM specifications and tolerances. It is a direct replacement for the original Sinotruk part number 199012320098, meaning it fits and performs identically to the factory-installed component.

What material is the housing made from, and how durable is it?

The housing is cast from high-strength iron alloy, then machined to precise dimensions. It’s engineered to handle the extreme torque and thermal cycling typical of heavy-truck rear axle assemblies, and the anti-corrosion surface treatment adds long-term durability in harsh environments.

Can I order a sample before placing a bulk order?

Absolutely. We encourage procurement managers to order samples for fitment testing and quality evaluation before committing to larger quantities. This way, you can verify compatibility with your specific vehicles firsthand.

Ready to Secure Your Supply? Let’s Talk.

Getting the right rear axle driver housing at the right price shouldn’t be complicated. Whether you need a single unit for urgent repair or a container load for your warehouse, Mettlead is here to make it happen — quickly, reliably, and at factory-direct cost.

Request your quote today. Share your required quantity, delivery destination, and any packaging preferences, and our team will respond with a competitive offer within 24 hours.

Contact Us Now — and let’s keep your fleet moving.