ZF6AP1700B Gearbox Assembly 4181 070 134
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ZF6AP1700B Gearbox Assembly 4181 070 134

ZF6AP1700B belongs to the ZF EcoLife series 6-speed heavy-duty automatic bus transmission, part number 4181 070 134, designed for city buses, tourist coaches and large passenger vehicles. It has 6 forward gears + 1 reverse gear, integrated hydraulic retarder, torque converter and electronic-hydraulic control system, rated for 1700 N·m maximum input torque. It delivers smooth shifting, enhanced braking performance, improved fuel efficiency and long service intervals for frequent start-stop city bus and intercity coach operation. It resolves common faults such as shifting jerk, overheating, abnormal noise, oil leakage, retarder failure and TCU communication faults.
 
Availability:
Quantity:
  • ZF6AP1700B

  • ZF

Product parameters

Basic Info


      • Model: 6AP1700B (ZF EcoLife series)

      • Part No.: 4181 070 134

      • Brand: ZF (ZF Friedrichshafen AG)

      • Structure: 6 forward gears + 1 reverse gear, automatic planetary transmission, torque converter, integrated hydraulic retarder, electro-hydraulic control

      • Max Rated Torque: 1700 N·m

      • Gear Ratios: 3.36, 1.91, 1.42, 1.00, 0.71, 0.62, Reverse: 4.24

      • Weight: approx. 350kg

      • Lubricant: ZF specified EcoLife automatic transmission fluid

      • Applicable Vehicles: City buses, tourist coaches, including Yutong, King Long, Higer, Scania, Mercedes-Benz and other large passenger buses

      • Category: Bus Drivetrain Parts – 6-Speed Automatic Transmission Assembly

      • Material: Cast aluminum/iron housing, precision planetary gear sets, friction clutches, hydraulic valve body, TCU control unit, torque converter, integral retarder assembly, oil seals and bearings



    • Material & Advantages


  1. Dedicated EcoLife bus automatic design with built-in hydraulic retarder, providing strong auxiliary braking and improving vehicle safety

  2. Precision planetary gear structure, smooth adaptive shifting, excellent NVH performance for passenger comfort

  3. Extended service interval design, reducing maintenance costs for long-term daily bus operation

  4. Optimized cooling system and thermal resistance, stable performance under frequent stop-and-go city bus conditions

  5. Intelligent shift program, adapting to road topography to reduce fuel consumption and extend transmission life

  6. Modular electronic control system, diagnostic capability, standard bus chassis mounting interface for overhaul replacement



Application


For full transmission overhaul and replacement of large city buses and intercity coaches. Confirm mounting interface, flange size and electrical connectors before installation, use specified ZF EcoLife transmission fluid, test shift function, retarder operation and cooling system, complete adaptive learning as required, then road test to check for leaks, abnormal noise and smooth shifting. Follow regular maintenance cycles for bus fleet operation.



Origin & Lead Time

In stock, delivery within 1–3 working days; bulk orders: 4–7 days; sea freight: 10–24 days


MOQ & Packing

MOQ: 1 piece
Warranty: 6 months, not covered for improper programming, water damage, overvoltage and unauthorized circuit modification
Packing: Anti-static bag + shockproof foam + reinforced export carton

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.


About Us
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