Product Introduction

• Structure: An integrated one-piece design, consisting of a ductile cast iron hexagonal mounting flange and a central steel guide sleeve. The flange features 6 bolt holes for secure attachment, and the guide sleeve is precision-machined to support the input shaft front bearing and journal.

• Key Specifications:

• Material: Ductile cast iron (flange) + 45# steel (guide sleeve)

• Mounting: 6-point M8 bolted connection

• Surface treatment: Anti-rust black oxide (flange) + precision grinding (sleeve)

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

Core Function

1. Sealing & Contamination Protection: Seals the front opening of the 10-speed transmission main box, preventing oil leakage and blocking dust/moisture from entering the transmission.

2. Input Shaft Guidance & Support: The central guide sleeve supports the input shaft front bearing, maintaining concentricity and reducing vibration during rotation.

3. Structural Reinforcement: The rigid cast iron flange reinforces the transmission front housing, resisting deformation under medium load and vibration.

Input Shaft End Cover WG2222020001 – SINOTRUK HW Series Gearbox Parts

When your SINOTRUK HW series gearbox demands a reliable seal at the input shaft, the Input Shaft End Cover WG2222020001 is the component that keeps everything running smoothly. Engineered to match OEM specifications, this gearbox end cover prevents lubricant leakage, protects internal bearings from contaminants, and ensures your heavy-duty transmission operates at peak efficiency. At Mettlead, we supply this genuine-quality part directly from our factory in China — meaning you get competitive pricing without compromising on precision or durability.

Why Choose the Input Shaft End Cover WG2222020001?

Every component inside a gearbox plays a critical role, and the input shaft end cover is no exception. Here is what makes this part essential — and why procurement managers worldwide trust Mettlead to deliver it:

• Perfect OEM Fitment: Manufactured to exact OEM dimensions, the WG2222020001 end cover seats precisely on the SINOTRUK HW series gearbox housing, eliminating installation guesswork.
• Superior Sealing Performance: This cover forms a tight barrier that prevents gear oil from escaping and blocks dust, moisture, and road debris from entering the transmission.
• High-Grade Material Construction: Made from premium alloy steel with surface hardening treatment, it withstands continuous vibration, thermal cycling, and high torque loads common in heavy truck applications.
• Extended Service Life: Strict dimensional tolerances and corrosion-resistant coating mean fewer replacements, reduced downtime, and lower total maintenance costs for fleet operators.
• Factory-Direct Pricing: Because we source and manufacture in China, you bypass middlemen and enjoy significantly lower per-unit costs — ideal for bulk procurement.

Application Scenarios – Compatible Vehicles and Gearboxes

The Input Shaft End Cover WG2222020001 is specifically designed for the SINOTRUK HW series gearbox family. It fits seamlessly into the following applications:

• SINOTRUK HOWO A7 / T7H / T5G heavy-duty trucks equipped with HW19710 / HW19712 transmissions
• SINOTRUK SITRAK C7H / C5H models using HW gearbox variants
• HOWO 371HP / 375HP / 420HP tractor heads and dump trucks with standard HW manual transmissions
• Mining, construction, and long-haul logistics fleets operating SINOTRUK platforms in Africa, Southeast Asia, the Middle East, and Central Asia

Whether you are maintaining a single vehicle or managing a fleet of hundreds, this input shaft end cover ensures consistent gearbox protection across all compatible SINOTRUK HW platforms. Explore our full range of gearbox parts and SINOTRUK HOWO gearbox components for complete transmission solutions.

Technical Specifications – WG2222020001 Input Shaft End Cover

OEM/ODM Capability and Custom Packaging

At Mettlead, we understand that different markets have different branding requirements. That is why we offer flexible OEM and ODM services for the Input Shaft End Cover WG2222020001 and all our SINOTRUK HOWO truck parts:

• White-Label Packaging: We can ship parts in neutral boxes — no manufacturer branding — so you can apply your own labels and build your local brand identity.
• Custom Packaging: Need your logo, part number stickers, or specific box designs? Our team handles custom print packaging from small batches to large-volume orders.
• Strict Quality Control: Every single input shaft end cover undergoes dimensional inspection, surface defect screening, and fitment verification before it leaves our warehouse.
• Flexible Order Quantities: Whether you need 10 pieces for a trial or 10,000 for annual procurement, we scale production to match your demand without sacrificing lead time.

In short, we function as your private-label gearbox parts manufacturer in China — you focus on selling, and we handle the production and quality assurance behind the scenes.

Customer Case Study – Input Shaft End Cover WG2222020001 in Action

In early 2024, a fleet maintenance company based in Nairobi, Kenya contacted Mettlead with an urgent requirement. They managed over 200 SINOTRUK HOWO dump trucks operating in construction and mining zones, and recurring gearbox oil leaks were causing unscheduled downtime across multiple units. After investigation, their mechanics traced the problem to worn-out input shaft end covers.

The procurement team needed 500 pieces of the Input Shaft End Cover WG2222020001 with custom packaging bearing their company logo. Mettlead delivered the full order within 15 working days, including sea freight to Mombasa port. Every piece passed our quality inspection, and the client reported zero fitment issues during installation.

Three months after replacement, the fleet saw a 40% reduction in gearbox-related maintenance calls. The client has since placed two additional orders for SINOTRUK HW series gearbox components — including output shaft covers, synchronizer rings, and gear oil pumps — consolidating Mettlead as their sole China-based parts supplier.

Frequently Asked Questions – Input Shaft End Cover WG2222020001

What is the function of the input shaft end cover in a SINOTRUK HW gearbox?

The input shaft end cover WG2222020001 seals the front end of the gearbox input shaft. It holds the oil seal in place, prevents transmission fluid from leaking out, and shields internal bearings from dust, water, and road debris. Without a properly functioning end cover, lubricant loss leads to accelerated gear wear and eventual gearbox failure.

Is the WG2222020001 input shaft end cover an exact OEM replacement?

Yes. This part is manufactured to the same dimensional tolerances and material specifications as the original SINOTRUK factory component. It installs directly onto the HW series gearbox housing without any modification required.

What are the signs that my input shaft end cover needs replacement?

Common symptoms include visible oil leakage at the front of the gearbox, abnormal noise from the input shaft area, and contamination marks around the cover perimeter. If you notice gear oil dripping near the clutch housing interface, the end cover or its integrated seal is likely compromised.

Which SINOTRUK HW gearbox models does this end cover fit?

The WG2222020001 is compatible with most HW series manual transmissions, including HW19710, HW19712, HW15710, HW20716, and their sub-variants. These gearboxes are installed in HOWO, SITRAK, and other SINOTRUK heavy truck platforms.

Can I order the input shaft end cover WG2222020001 with my own brand packaging?

Absolutely. Mettlead offers white-label and full custom packaging services. You can supply your logo design and preferred box layout, and we will produce branded packaging at no significant additional cost for bulk orders.

What is the typical lead time for bulk orders of this gearbox end cover?

For standard stock quantities (up to 200 pieces), we typically ship within 3–5 working days. Larger custom orders of 500+ pieces usually require 10–15 working days depending on packaging specifications and current production schedules.

Ready to Source Your Input Shaft End Cover WG2222020001?

Stop overpaying for SINOTRUK gearbox components through third-party distributors. With Mettlead, you deal directly with the source — factory-verified quality, competitive bulk pricing, and logistics support to over 60 countries.

Whether you need a sample for quality approval or a full container of HW series gearbox parts, our team is ready to provide a custom quotation within 24 hours.

Take the next step: Contact us today to request pricing, MOQ details, or technical data sheets for the Input Shaft End Cover WG2222020001. Let us be the gearbox parts partner your business can rely on.