Product Introduction

• Structure: An integrated assembly consisting of a cast iron end cover and a precision-machined aluminum alloy oil guide ring. The end cover features a hexagonal mounting flange with 6 bolt holes for secure attachment, and a central bore that supports the input shaft front bearing. The oil guide ring is press-fitted into the cover’s inner bore, with spiral oil grooves to direct lubricant to the input shaft journal and bearing.

• Key Specifications:

• Material: Ductile cast iron (end cover) + aluminum alloy (oil guide ring)

• Mounting: 6-point M10 bolted connection

• Surface treatment: Anti-rust black oxide (cast iron) + anodized (aluminum ring)

• Operating temperature: -40°C to +150°C

Core Function

1. Sealing Protection: Seals the front opening of the transmission main box, preventing lubricating oil leakage and blocking dust/moisture from entering the transmission.

2. Lubrication Guidance: The oil guide ring’s spiral grooves direct pressurized oil from the lubrication circuit to the input shaft journal and front bearing, ensuring continuous lubrication and cooling.

3. Bearing Support: The central bore of the end cover provides precise radial support for the input shaft front bearing, maintaining shaft concentricity and reducing vibration.

Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 – SINOTRUK HW Series Gearbox

When your SINOTRUK HW Series Gearbox demands precise lubrication flow and a secure seal at the input shaft, the Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 steps in as your go-to solution. This assembly plays a critical role in directing oil efficiently through the transmission’s input shaft area, preventing leakage and ensuring long-lasting gearbox performance. At Mettlead, we supply this genuine-spec component at factory-direct prices, so you never have to compromise between quality and cost.

Key Functions and Benefits of Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106

This isn’t just another replacement part sitting on a shelf. The Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 is engineered to keep your SINOTRUK HW gearbox running smoothly under the toughest conditions. Here’s what it delivers:

• Precision Oil Guiding: The integrated oil guide ring channels lubricant directly to the input shaft bearing surfaces, reducing friction and heat buildup from day one.
• Reliable Sealing Performance: The end cover forms a tight barrier against oil leakage, maintaining optimal pressure within the gearbox housing and preventing contamination from external debris.
• Extended Gearbox Lifespan: By ensuring consistent lubrication distribution, this assembly minimizes premature wear on bearings and shaft components, which translates to fewer breakdowns and lower maintenance costs.
• OEM-Matched Dimensions: Manufactured to match the exact tolerances of the original SINOTRUK specification, so installation is seamless and no modifications are required.
• Heavy-Duty Durability: Built from high-grade materials that withstand the mechanical stresses and thermal cycling common in heavy truck transmissions.

In other words, this assembly protects your entire gearbox investment by keeping the lubrication system functioning exactly as SINOTRUK intended.

Technical Specifications

Accurate parameters matter, especially when you’re sourcing parts across borders. Below you’ll find the complete specs for the Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106:

Application Scenarios – Compatible Vehicles and Gearboxes

The Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 is specifically designed for SINOTRUK HW Series heavy-duty gearboxes. If you’re managing a fleet or supplying parts for these vehicles, this is the component you need:

• SINOTRUK HOWO A7 – equipped with HW19710 transmission
• SINOTRUK HOWO 6×4 Tractor Trucks – HW15710 gearbox configuration
• SINOTRUK SITRAK C7H – HW Series manual transmission variants
• SINOTRUK HOWO T7H / TX Series – HW13710 and related models
• Various SINOTRUK mining and construction vehicles – operating HW gearbox systems

Whether the trucks are hauling cargo across African highways, navigating Southeast Asian terrain, or working in Middle Eastern logistics fleets, this input shaft end cover and oil guide ring assembly keeps the transmission properly lubricated under all operating environments.

Explore more compatible parts in our SINOTRUK HOWO Truck Parts collection and browse our full Gearbox Parts and SINOTRUK HOWO Gearbox Parts categories.

OEM/ODM Capabilities

At Mettlead, we understand that procurement managers need more than just a part number—they need a reliable supply partner who adapts to their business. Here’s what we offer beyond the product itself:

• White-Label Packaging: Want to sell under your own brand? We provide custom packaging solutions, so the Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 arrives with your branding, your labels, and your documentation.
• Strict Quality Control: Every batch undergoes dimensional inspection and surface quality checks before shipment. We don’t leave quality to chance.
• Factory-Direct Pricing: Because we source directly from manufacturing facilities in China, there are no middlemen inflating your costs. You get competitive pricing that protects your margins.
• Flexible MOQ: Whether you need a sample order for testing or a bulk shipment for your warehouse, we accommodate orders of varying sizes.
• Fast and Reliable Delivery: Our logistics team works with trusted freight partners to get your SINOTRUK gearbox parts to your door quickly, no matter where you’re located.
• Secure Payment Options: We support multiple payment channels that are formal, flexible, and safe for international transactions.

Additionally, if you’re sourcing related components—such as synchronizer assemblies, gearbox housings, or output shaft parts—we can bundle your order and streamline your entire procurement process.

Customer Case Study

Earlier this year, a fleet maintenance company based in East Africa reached out to us with an urgent need. They managed over 120 SINOTRUK HOWO tractor trucks, and several units were experiencing oil leakage at the input shaft area of the HW Series gearbox. After diagnosing the issue, their technicians confirmed the Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 needed replacement on 35 trucks.

Their main concern? Getting genuine-spec parts quickly, without overpaying. They had previously tried a local supplier whose parts didn’t meet OEM tolerances—resulting in repeated leaks and wasted labor.

After discovering Mettlead online, they placed a trial order of 10 units. The Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 arrived within 12 days, and every piece passed their incoming quality inspection. Installation was straightforward with no fitment issues. Within a month, they ordered the remaining 25 units plus additional SINOTRUK HW gearbox parts, consolidating their supply chain through us.

The result? Zero repeat failures, a 30% cost saving compared to their previous supplier, and a reliable partnership that continues today.

Frequently Asked Questions (FAQ)

What is the function of the oil guide ring in this assembly?

The oil guide ring serves as a directional channel that routes lubricating oil to the input shaft bearings inside the HW Series gearbox. Without it functioning properly, the bearings starve of oil, overheat, and eventually fail. So this small ring plays a surprisingly big role in overall transmission health.

Is AZ2203020106 a complete assembly or do I need to purchase components separately?

It’s a complete pre-assembled unit. The Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 includes both the end cover and the oil guide ring, ready for direct installation. You won’t need to source additional parts or perform sub-assembly work.

How do I know if this part fits my specific HW gearbox model?

Part number AZ2203020106 is designed for the SINOTRUK HW Series transmission family, including HW19710, HW15710, and HW13710 variants. If your truck uses one of these gearboxes, this assembly is your match. If you’re unsure, send us your gearbox nameplate details and we’ll confirm compatibility.

What causes the input shaft end cover to fail?

Over time, thermal cycling, vibration, and normal wear degrade the sealing surfaces. You might also see damage from contaminated oil or improper previous installation. Common symptoms include oil spots beneath the gearbox bell housing and a gradual drop in transmission fluid level.

Can I get this part with my own brand label?

Absolutely. We offer white-label and custom packaging for the Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106. Just provide your logo, part number format, and packaging specifications, and we’ll handle the rest.

What is the typical lead time for bulk orders?

For standard stock items, we ship within 3–5 business days. Larger bulk orders or custom-packaged requests typically ship within 7–15 business days depending on quantity and packaging requirements.

Ready to Source Your Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106?

Stop letting gearbox oil leaks eat into your fleet’s uptime and your budget. Whether you need a single unit for an urgent repair or a bulk shipment to stock your warehouse, Mettlead delivers the Input Shaft End Cover And Oil Guide Ring Assy AZ2203020106 at factory-direct prices with quality you can count on.

Get a fast, no-obligation quote today. Our team typically responds within 12 hours with pricing, availability, and shipping options tailored to your location.

Contact Us Now to Request Your Quote →

Mettlead – Your trusted China-based supplier for SINOTRUK, HOWO, SITRAK, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON truck parts. Factory-direct. Quality-assured. Globally delivered.