ZF Bus Gearbox Assembly 6AP2000B
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ZF Bus Gearbox Assembly 6AP2000B

6AP2000B is a ZF EcoLife series heavy-duty 6-speed automatic bus transmission assembly with integrated hydraulic retarder and electro-hydraulic control system, rated for 2000 N·m maximum input torque. It is designed for large luxury coaches, long-distance tour buses and high-capacity city buses, delivering smooth adaptive shifting, powerful auxiliary braking, low noise and optimized fuel economy for long-distance passenger transport. It solves common faults such as shifting jerk, abnormal noise, oil leakage, overheating, retarder malfunction and valve body failure.
 
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  • ZF 6AP 2000B

  • ZF

  • ZF 6AP 2000B

Product parameters

Basic Info

    Model: 6AP2000B (ZF EcoLife series)

    • Brand: ZF (ZF Friedrichshafen AG)

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

    • Max Rated Torque: 2000 N·m

    • Gear Ratios: 1st:3.36, 2nd:1.91, 3rd:1.42, 4th:1.00, 5th:0.72, 6th:0.62, Reverse:4.24

    • Weight: approx. 379kg

    • Oil Capacity: approx. 42L

    • Specified Lubricant: ZF TE-ML 20 EcoLife automatic transmission fluid

    • Applicable Vehicles: Large luxury coaches, intercity tour buses, high-capacity city buses (Yutong, Kinglong, Higer, MAN, Mercedes-Benz etc.)

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

    • Material: Reinforced cast/aluminum housing, precision planetary gear sets, friction clutch packs, hydraulic valve body, TCU control unit, torque converter, integral retarder assembly, oil seals and bearings



  • Material & Advantages


  • Built-in hydraulic retarder, provides strong continuous auxiliary braking, improves safety on mountain and long-distance routes

  • New torsional damper + precision planetary gears, excellent NVH performance and smooth shifting for passenger comfort

  • Dual cooling system, stable thermal performance for full-day continuous long-distance operation

  • Extended service interval design, reducing maintenance downtime and fleet operating costs

  • Intelligent adaptive shift program, reduces fuel consumption and extends transmission service life

  • Standard bus chassis mounting interface, compatible with mainstream large coach chassis



Application


For full transmission overhaul and replacement of large intercity coaches and high-end passenger buses. Confirm mounting dimensions, flange size and electrical connectors before installation, fill with specified ZF EcoLife transmission fluid, test shift function, retarder operation and cooling system, complete adaptive learning as required, then road test for smooth shifting, normal temperature and no oil leakage. Follow official ZF maintenance schedules for fluid replacement.



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.


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