16S-151 synchronizer sleeve for Gearbox Parts

The 16S-151 synchronizer sleeve represents the pinnacle of commercial vehicle transmission engineering, designed specifically to handle the immense mechanical stress of heavy-duty operations. When transport vehicles operate under punishing payloads and steep gradients, the transmission demands components that absolutely will not falter. This synchronizer sleeve is meticulously crafted to facilitate smooth, rapid gear transitions, minimizing the harsh mechanical shock that can prematurely wear down internal gearbox assemblies. By integrating advanced triple plate clutch steel and a robust air-cooled design, it effectively dissipates thermal buildup during continuous, high-friction operation. The tactile engagement of the gears feels incredibly crisp and responsive, a direct result of the secondary forging process that refines and aligns the metal's internal grain structure. Mechanics and assembly technicians will immediately notice the flawless, mirror-like surface finish and the reassuring heft of the component, which speaks volumes about its structural density. Built to seamlessly accommodate a formidable 1000 lb-ft torque capacity, this sleeve is the definitive choice for dump trucks and heavy commercial transport vehicles requiring uncompromising reliability and extended service intervals on the road.

Synchronizer Sleeve Overview

Our synchronizer sleeve is designed for heavy-duty transmission systems, focusing on durability, smooth shifting, and long service life under extreme working conditions.

Manufactured from high-strength alloy steels (20CrMo, 40CrMo, 42CrMo, 22CrMoH), and reinforced with copper-based wear-resistant liners, it effectively reduces friction and gear wear while improving overall transmission stability.

A 12-hour heat treatment process ensures a stable hardness of 60–62 HRC, providing strong resistance against high-load and abrasive environments.

Precision grinding technology ensures smooth gear engagement, lower operating noise, and improved driving comfort.

Fully compatible with OEM 1312304056 and ZF 16S series transmissions (including 16S150 / 16S151 / 16S181 / 16S221), offering direct replacement without modification.

Each unit is 100% inspected before shipment and supported by strict quality control standards to ensure reliable performance in real operating conditions.

Available with fast delivery, stable production capacity, and secure export packaging for global shipping.

Why Choose Us

Founded in 2011, Jinan Sinorise Import & Export Co., Ltd. has grown into a reliable supplier in the heavy-duty truck parts industry, with a strong focus on quality, stability, and long-term cooperation.

We operate two manufacturing bases with a skilled workforce of around 500 employees, ensuring stable production capacity and consistent supply for global customers.

Our own brand SINOASCEND represents durability and performance, widely recognized in the international aftermarket market.

We carefully select high-grade raw materials to ensure every component delivers strong wear resistance and a longer service life, even under harsh operating conditions.

Over the years, we have built steady partnerships in Southeast Asia and Africa, providing solutions adapted to different climates and road environments.

Beyond manufacturing, we focus on delivering practical and cost-effective solutions that help customers improve fleet reliability and reduce maintenance downtime.

SINOSASEND's unique high-end cardboard box and customized wooden box packaging.

Packaging is environmentally friendly, shaping the brand, and enhancing the brand image.

To better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient, and efficient packaging services.

Q1: Why is 22CrMoH widely used in synchronizer components?
A: 22CrMoH is a high-strength alloy steel with excellent impact resistance and fatigue strength. Through advanced forging and heat treatment processes, it forms a dense internal structure that performs reliably under continuous heavy-load shifting conditions, reducing the risk of cracking and premature failure.

Q2: What benefit does the 6-grade machining accuracy bring?
A: The 6-level precision standard ensures extremely accurate tooth profiles, allowing smoother engagement during gear shifting. This reduces friction and heat buildup, improves transmission efficiency, and helps extend the overall service life of the gearbox.

Q3: Do you offer customized packaging or branding?
A: Yes. In addition to our standard SINOASCEND export packaging, we support OEM customization. Customers can add logos, part numbers, and customized carton designs to match their brand and warehouse management requirements.

Q4: How fast can you deliver orders?
A: For regular stock items, shipment can usually be arranged within 3–7 days. For customized or bulk production orders, the typical lead time is around 20–30 days depending on quantity and specifications.

Q5: How do you ensure product safety during shipping?
A: Each unit is coated with anti-rust protection and individually sealed in moisture-proof packaging. Products are then cushioned with protective foam and packed in reinforced wooden crates to ensure safe transport under long-distance sea freight conditions.