Product Introduction

This precision-machined synchronizer ring is designed to frictionally match the rotational speed of the target gear to the transmission shaft, allowing for seamless gear engagement.

• Structure & Material: Made from high-friction alloy steel, it features a conical inner surface with fine friction grooves and external teeth that mate with the synchronizer sleeve. The surface is carburized and quenched for exceptional hardness and wear resistance.

• Performance: When shifting, the ring’s conical friction surface creates controlled drag to synchronize gear and shaft speeds, preventing grinding and ensuring smooth engagement.

• Durability: The hardened steel construction withstands high temperatures, friction, and impact loads, maintaining performance over long service intervals.

Core Function

1. Speed Synchronization: Frictionally matches the rotational speed of the target gear to the transmission shaft before engagement.

2. Clash Prevention: Eliminates gear grinding by ensuring perfect speed alignment, protecting gear teeth from damage.

3. Shift Smoothness: Reduces shift effort and improves driver feel by enabling seamless gear engagement.

Synchronizer Ring AZ2210020502 for SINOTRUK HW Series Gearbox – Factory Direct Supply

When your SINOTRUK HW series gearbox demands a smooth, reliable gear shift every single time, the Synchronizer Ring AZ2210020502 is the component that makes it happen. Engineered to match OEM specifications, this synchronizer ring eliminates grinding, reduces wear on gear teeth, and restores shifting precision to your heavy-duty transmission. As a result, your fleet stays on the road longer, and your maintenance costs stay lower.

At Mettlead, we supply genuine-quality SINOTRUK gearbox parts directly from our China-based factory network. That means you get competitive pricing, consistent quality, and fast turnaround — without the middleman markup. Whether you are restocking your workshop inventory or sourcing parts for a fleet overhaul, this synchronizer ring delivers the performance and value your operation needs.

Why Choose the Synchronizer Ring AZ2210020502?

Precision-Matched Performance

This synchronizer ring is specifically designed for the SINOTRUK HW series gearbox, ensuring perfect dimensional accuracy and friction characteristics. Consequently, gear engagement becomes smoother, and the driver experiences noticeably quieter shifts — even under heavy load conditions.

Extended Service Life

Manufactured with high-grade alloy materials and advanced sintering techniques, the AZ2210020502 synchronizer ring resists heat deformation and surface wear. In other words, it maintains its synchronizing capability over hundreds of thousands of kilometers, which ultimately reduces unplanned downtime for your trucks.

Cost-Effective Maintenance Solution

A worn synchronizer ring can quickly damage adjacent gears and shift forks, turning a minor repair into a major overhaul. By replacing this component proactively with a quality-assured part, you protect the entire gearbox assembly and keep total repair costs under control.

Key Benefits at a Glance

• OEM-equivalent fit and function — direct replacement for part number AZ2210020502
• Smooth gear synchronization — eliminates grinding and hard shifts
• Heat-resistant alloy construction — withstands extreme operating temperatures
• Strict quality inspection — every batch undergoes dimensional and hardness testing
• Factory direct pricing — no intermediary costs passed on to you

Technical Specifications – Synchronizer Ring AZ2210020502

Application Scenarios – Where Does This Synchronizer Ring Fit?

The Synchronizer Ring AZ2210020502 is specifically engineered for the SINOTRUK HW series gearbox, which is widely used across multiple heavy-duty vehicle platforms. Therefore, this part serves a broad range of commercial applications:

• SINOTRUK HOWO A7 / T7H / T5G tractor units — long-haul logistics and container transport
• SINOTRUK HOWO dump trucks — mining, quarrying, and construction site operations
• SINOTRUK SITRAK heavy trucks — premium transport and distribution fleets
• Concrete mixer trucks equipped with HW19710/HW19712 transmissions
• Special-purpose vehicles — fire trucks, tanker trucks, and municipal vehicles using HW gearboxes

In short, if your vehicle relies on a SINOTRUK HW series transmission, this synchronizer ring is your go-to replacement part for maintaining efficient gear engagement. For more compatible gearbox components and SINOTRUK HOWO gearbox parts, explore our full catalog.

OEM/ODM Capability & Custom Packaging

Mettlead understands that different markets have different branding needs. That is why we offer flexible packaging and labeling solutions for the Synchronizer Ring AZ2210020502:

• White-label packaging — neutral boxes ready for your own brand stickers
• Custom packaging — your logo, part numbers, and brand colors printed directly on the box
• OEM-spec manufacturing — parts produced to original equipment dimensions and tolerances
• Bulk supply — large-volume orders fulfilled with consistent quality batch to batch

Additionally, every synchronizer ring undergoes strict quality control before shipment. Our inspection process covers dimensional tolerance checks, surface roughness measurement, hardness testing, and friction coefficient verification. As a result, you receive parts that perform identically to original equipment — or better.

Customer Case Study – Fleet Overhaul Success with AZ2210020502 Synchronizer Ring

A logistics company operating out of East Africa reached out to Mettlead after experiencing repeated gear-shifting problems across their fleet of 40+ SINOTRUK HOWO tractor units. Their drivers reported grinding noises and difficulty engaging second and third gears — classic symptoms of worn synchronizer rings in the HW series gearbox.

After consulting with our technical team, the client ordered 120 pieces of the Synchronizer Ring AZ2210020502 along with related SINOTRUK HW gearbox components. We shipped the full order within five business days, packaged in the client’s custom branding for their local aftermarket distribution.

Within three weeks of installation, the fleet manager reported that shifting quality had been fully restored, and the company avoided costly complete gearbox replacements on multiple trucks. Moreover, the client has since placed three repeat orders for synchronizer rings and other SINOTRUK HOWO truck parts — a testament to the product’s reliability and our supply consistency.

Frequently Asked Questions – Synchronizer Ring AZ2210020502

What are the symptoms of a worn synchronizer ring in a SINOTRUK HW gearbox?

The most common signs include grinding or crunching noises during gear shifts, difficulty engaging specific gears, and increased driver effort on the shift lever. If left unaddressed, a damaged synchronizer ring can cause premature wear on gear teeth and shift forks inside the HW series transmission, leading to far more expensive repairs.

Is this Synchronizer Ring AZ2210020502 an OEM part or aftermarket?

This is an OEM-equivalent aftermarket part. It is manufactured to the same dimensional tolerances, material specifications, and performance standards as the original SINOTRUK component. Consequently, it fits and functions as a direct drop-in replacement without any modification.

How long does the AZ2210020502 synchronizer ring typically last?

Under normal operating conditions and proper driving habits, this synchronizer ring can last between 200,000 and 400,000 kilometers. However, service life depends on factors such as load conditions, driving technique, and gearbox oil quality. Regular transmission fluid changes help extend the life of all synchronizer components.

Can I order just one piece, or is there a minimum order quantity?

Mettlead maintains flexible MOQ policies to accommodate both small repair shops and large fleet operators. Whether you need a single ring for a one-time repair or hundreds of pieces for inventory replenishment, we can arrange supply. Contact us for exact pricing based on your quantity.

What gearbox oil should I use after replacing the synchronizer ring?

SINOTRUK recommends GL-4 or GL-5 grade heavy-duty transmission oil with a viscosity of 85W-90 for HW series gearboxes. Using the correct specification oil ensures optimal friction performance between the new synchronizer ring and the gear cone surface, promoting smooth shifts and long component life.

How do I verify that AZ2210020502 is the correct part for my specific truck?

You can confirm compatibility by checking the gearbox nameplate on your SINOTRUK HW transmission or referring to your vehicle’s parts catalog. If you are unsure, simply send us your gearbox model number or VIN, and our technical team will verify the correct synchronizer ring part number for you.

Get Your Synchronizer Ring AZ2210020502 – Request a Quote Today

Ready to restore smooth shifting performance to your SINOTRUK HW series gearbox? Mettlead offers factory-direct pricing, fast global shipping, and dedicated technical support for every order. Furthermore, we welcome buyers to visit our facility in China to inspect production quality firsthand.

Take the next step:

• Request a competitive quote for the Synchronizer Ring AZ2210020502
• Ask about volume discounts for fleet-scale orders
• Inquire about custom packaging with your brand identity
• Explore our full range of SINOTRUK HOWO truck spare parts

Contact Mettlead now to get your quote within 24 hours. Our team is standing by to help you source the right gearbox parts at the right price — reliably, every time.