Product Introduction

This planetary carrier is a core structural component of the transmission’s range reduction system, designed to support and position the planetary gears for reliable power transfer.

• Structure & Material: Precision-cast from high-strength ductile iron, with an integrated multi-lobe design that houses the planetary gear pins. It features mounting holes for gear pin retention and alignment slots for assembly with the transmission housing.

• Strength & Durability: The robust casting and reinforced load-bearing surfaces ensure it can withstand high torque loads during range shifts and heavy-duty operation.

• Precision Alignment: Machined locating surfaces ensure concentric alignment of the planetary gear set, minimizing noise and wear during power transmission.

Core Function

1. Gear Support: Provides rigid mounting and rotational support for the planetary gears, ensuring they mesh accurately with the sun gear and ring gear.

2. Torque Transmission: Transmits torque between the planetary gear set and the transmission output, enabling range shift functionality (high/low gear ratio switching).

3. Structural Integrity: Maintains the alignment of the planetary gear set under high loads, reducing vibration and extending component service life.

Planetary Carrier (Front) AZ2225100002 – SINOTRUK HW Series Gearbox

When your SINOTRUK HW series gearbox demands a reliable front planetary carrier, the AZ2225100002 is engineered to deliver uncompromising performance under the toughest operating conditions. As a critical component in the gear reduction system, this planetary carrier ensures smooth torque distribution and extended transmission life. Mettlead supplies this genuine-spec part directly from our factory, which means you get OEM-matching quality at a price that keeps your fleet operations profitable. Whether you are maintaining a single truck or managing a large-scale fleet overhaul, this front planetary carrier stands ready to keep your drivetrain running at peak efficiency.

Key Features and Benefits of the AZ2225100002 Planetary Carrier (Front)

Choosing the right planetary carrier for your SINOTRUK HW gearbox is not just about fit — it is about long-term reliability and cost savings. Here is what makes this part a smart investment:

• Precision-Engineered Construction: Manufactured with high-grade alloy steel, this front planetary carrier withstands extreme torque loads and resists premature wear, ensuring a longer service life inside your HW series gearbox.
• OEM-Spec Dimensional Accuracy: Every unit is machined to match the original AZ2225100002 specifications, guaranteeing a perfect fit without modifications or additional machining.
• Superior Heat Treatment: Advanced carburizing and quenching processes give the carrier surface hardness while maintaining internal toughness — a critical balance for parts that endure constant rotational stress.
• Smooth Torque Transmission: The planetary carrier (front) distributes load evenly across the planetary gears, reducing vibration and noise while maximizing power transfer efficiency.
• Factory-Direct Cost Advantage: By sourcing directly from Mettlead, you eliminate middlemen and enjoy competitive pricing without sacrificing part quality or reliability.
• Strict Quality Control: Each planetary carrier undergoes rigorous dimensional inspection, hardness testing, and surface finish verification before it leaves our facility.

Technical Specifications – Planetary Carrier (Front) AZ2225100002

Below you will find the detailed specifications for this SINOTRUK HW series gearbox planetary carrier. These parameters are essential for verifying compatibility with your application:

Application Scenarios – Where Does the AZ2225100002 Planetary Carrier Fit?

The Planetary Carrier (Front) AZ2225100002 is specifically designed for the SINOTRUK HW series gearbox, which is widely used across heavy-duty truck platforms. This part plays a vital role in maintaining the structural integrity and operational fluidity of the front planetary gear set. In other words, without a properly functioning front planetary carrier, your entire gearbox performance suffers.

Compatible vehicles and applications include:

• SINOTRUK HOWO heavy-duty trucks equipped with HW series manual transmissions
• SINOTRUK SITRAK vehicles using HW gearbox configurations
• Mining, logistics, and construction trucks running SINOTRUK HW19710, HW15710, and similar gearbox models
• Fleet overhaul and preventive maintenance programs targeting drivetrain components

If you are sourcing gearbox components for any of these applications, explore our full range of SINOTRUK HOWO gearbox parts and our dedicated gearbox parts category for more compatible components.

OEM/ODM Capability – Custom Packaging and White-Label Solutions

At Mettlead, we understand that B2B buyers often need more than just the right part — they need branding flexibility. That is why we offer comprehensive OEM and ODM services for the Planetary Carrier (Front) AZ2225100002 and all our SINOTRUK gearbox components:

• White-Label Packaging: We supply parts in neutral packaging so you can rebrand them under your own company name for resale in your local market.
• Custom Packaging Design: Need your logo, part numbers, and branding printed on the box? We handle that for you at competitive volume-based pricing.
• Bulk Order Flexibility: Whether you need 10 units or 10,000, our production capacity scales to meet your demand without compromising lead times.
• Quality Documentation: We provide inspection reports, material certifications, and packing lists tailored to your import requirements.

For more information about our full SINOTRUK parts inventory, visit the SINOTRUK HOWO truck parts brand page to browse all available components.

Customer Case Study – Planetary Carrier (Front) AZ2225100002 in Action

One of our long-term clients, a fleet maintenance company based in East Africa, approached us in early 2023 with an urgent need. They were managing over 200 SINOTRUK HOWO trucks and experiencing frequent gearbox failures due to worn-out front planetary carriers. Local suppliers quoted inflated prices with lead times exceeding 8 weeks.

After connecting with Mettlead, they placed a trial order for 50 units of the Planetary Carrier (Front) AZ2225100002. Our team processed the order within 48 hours, and the shipment arrived at their warehouse in just 18 days. Importantly, the parts passed their internal QC inspection on the first attempt — zero rejections.

Within six months, this client expanded their orders to include a full range of SINOTRUK HW series gearbox parts, reducing their per-unit procurement cost by 35% compared to their previous supplier. Today, they rely on Mettlead as their primary source for all SINOTRUK gearbox planetary carriers and related transmission components.

“The AZ2225100002 planetary carriers from Mettlead fit perfectly and last as long as the originals. The pricing and delivery speed have transformed our maintenance operations.” — Procurement Manager, East Africa Fleet Services

Frequently Asked Questions – Planetary Carrier (Front) AZ2225100002

What is the function of the Planetary Carrier (Front) AZ2225100002 in the SINOTRUK HW gearbox?

The front planetary carrier serves as the structural housing for the planetary gears within the HW series gearbox. It holds the planet gears in precise alignment, allowing them to rotate around the sun gear and distribute torque evenly. When this carrier wears or cracks, gear engagement becomes rough, noise increases, and power loss occurs — eventually leading to complete gearbox failure if left unaddressed.

How do I confirm that the AZ2225100002 is compatible with my specific truck model?

The most reliable method is to cross-reference the OEM part number AZ2225100002 with your truck’s gearbox nameplate data. If your vehicle runs a SINOTRUK HW series transmission (such as HW19710 or HW15710), this planetary carrier is designed to fit. If you are unsure, simply send us your VIN or gearbox model number and our technical team will verify compatibility within 24 hours.

What are the common signs that the front planetary carrier needs replacement?

You should inspect the front planetary carrier if you notice abnormal gearbox noise under load, difficulty shifting between gears, excessive vibration from the transmission area, or metal debris appearing in the gearbox oil during routine maintenance. These symptoms typically indicate worn pin bores, cracked carrier walls, or damaged gear shaft seats — all of which require carrier replacement.

Is this planetary carrier made from the same material as the original SINOTRUK part?

Yes. Our AZ2225100002 planetary carrier (front) is manufactured using the same high-grade alloy steel as the OEM component. It undergoes identical heat treatment processes — carburizing for surface hardness and quenching for core toughness — to ensure it performs and lasts exactly like the original factory part.

Can I order a sample of the Planetary Carrier (Front) AZ2225100002 before placing a bulk order?

Absolutely. We encourage new buyers to start with a sample order so you can verify dimensional accuracy, material quality, and fitment before committing to larger quantities. Sample lead times are typically 3–5 business days from our warehouse.

Ready to Source Your Planetary Carrier (Front) AZ2225100002?

Stop overpaying for middlemen markups and unreliable delivery schedules. Mettlead offers you a direct line to factory-quality SINOTRUK HW series gearbox parts — including the AZ2225100002 front planetary carrier — with strict quality control, flexible packaging, and competitive pricing built for serious buyers.

Take the next step today:

• Request a quote with your required quantity and delivery destination
• Ask our technical team to verify part compatibility for your fleet
• Inquire about white-label packaging for your distribution business

Contact us now to get your personalized quote for the Planetary Carrier (Front) AZ2225100002. Our team typically responds within 12 hours, and we welcome factory visits for buyers who want to see our quality processes firsthand.