ZF16S251 WSK400 transmission with engine assembly
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ZF16S251 WSK400 transmission with engine assembly

ZF16S251 16-speed manual transmission integrated with WSK400 hydraulic torque converter assembly, perfectly matched to heavy-duty truck engines. The WSK400 fluid coupling multiplies starting torque for easy heavy-load startup, built-in auxiliary retarder provides continuous downhill braking protection, 16-speed wide gear ratio range reduces engine fatigue, robust casting structure ideal for special transport, mining and oversized cargo vehicles.
 
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  • ZF16S251 WSK400 transmission with engine assembly

  • ZF

  • ZF16S251 WSK400 transmission with engine assembly

Product parameters

Basic Info

Model: ZF16S251 WSK400
Product Name: ZF16S251 WSK400 Transmission Assembly Matched with Engine
Brand: ZF
Category: Transmission Parts > Complete Gearbox Assembly with Torque Converter



Weight Parameter

Net Weight: 368KG
Gross Weight: 412KG with export wooden case packin



Material & Feature

  • Gearbox housing: High-strength nodular cast iron, anti-crack & shock resistant under extreme overload

  • Internal gears: Carburized alloy steel, precision grinding, low noise & long service life

  • WSK400 torque converter: Sealed hydraulic fluid structure, torque magnification coefficient up to 1.5, automatic lock-up at cruising speed

  • Integrated hydraulic retarder: Stable auxiliary braking, drastically reduces service brake wear on mountain routes

  • Pneumatic split shift mechanism, smooth high/low range switching; optional multi-position PTO interface for engineering vehicles

  • Integrated oil cooling circulation system, stable temperature control under long-hour heavy haul



Application

Matched with heavy-duty diesel engines, widely used on oversized transport trucks, military special vehicles, mining haulers, heavy tractors and construction engineering vehicles.


Origin & Lead Time

Shiyan warehouse in stock, deliver 1–2 working days after payment; bulk orders 3–7 working days, sea shipping 7–18 days.


MOQ, Warranty & Packing

MOQ: 1 piece
Warranty: 3–6 months, man-made damage and incorrect installation not covered
Packing: Shockproof export wooden case, moisture-proof for long-distance transit


About yongliwei

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Gearboxes assembly include brand ZF, Eaton, FAST, Allison, DONGFENG, DC, Benz, volvo, HOWO, WLY etc. Gearboxes parts includegear, synchronizer, PTO, housing, bearings, shaft, top cover, sensors, wireness, repair kits... etc.


Our products have been exported to more than 50 countries and regions such as Korea, Chile, Russia, Kazakhstan, USA, Ecuador, Turkey, Iran, Africa, Latin America, etc., and have been unanimously recognized by customers.


In the future, we will be committed to creating higher-end quality and more intimate service. And a more comfortable customer experience to build Yongliwei company into an auto parts supplier with excellent corporate culture, scientific development concept and continuous innovation ability.

Company information (1)

Shiyan Yongliwei Industry and Trading Co., Ltd. is a modern enterprise integrating design, development, production and sales of gearbox assembly and gearbox parts.


Our company was founded in Hubei province, China, and has been specialized the truck gearboxes in Chinese offline market for 21 years .Our parts are the leader of gearboxes area in the China now.


Our company was set up in the largest truck parts production base in the world –Shiyan city, Hubei, China, to meet the demand for products in the Asia and South American markets, a professional international trade sales team was born in Hubei in 2021.


Shiyan Yongliwei is focusing on creating high quality, high technology and high standard gearboxes and its parts.

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* 8000 square meters of large warehouse.

* A number of maritime, land, air transport international logistics companies work closely together.

* To provide you with convenient, fast and low-cost e-commerce one-stop service.


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About Us
19 years experience for gearbox, 5000㎡ warehouse stocked parts, professional team and high quality after-sale service, your inquiry will be our priority.
Contact Us
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