ZF 1333 304 061 Synchronizer Sleeve
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ZF 1333 304 061 Synchronizer Sleeve

1333 304 061 is OEM standard synchronizer sliding sleeve exclusively matched with ZF 6S1000TO 6-speed medium-duty truck manual & AMT transmission. As the core sliding locking component of synchronizer assembly, it moves axially pushed by shift fork to mesh with synchronizer cone and gear teeth, firmly locking gear position for stable torque transmission during driving. Frequent urban start-stop, heavy load delivery and insufficient lubrication easily cause inner spline wear, broken locking teeth and deformation, resulting in stiff shifting, jumping gear and abnormal grinding noise. This matching synchro sleeve completely fixes such typical gearbox faults for light & medium commercial fleets.
Availability:
Quantity:
  • 1333 304 061

  • ZF

  • 1333 304 061

Product parameters

Basic Info

  • OE Part No.: 1333 304 061

  • Product Type: Gearbox Synchronizer Sliding Sleeve / Shift Sleeve

  • Brand: ZF OEM Matching Replacement Spare Parts

  • Compatible Gearbox: ZF 6S1000TO 6-speed medium truck transmission

  • Applicable Vehicles: Volvo FE, Kamaz, medium logistics cargo trucks, city delivery vans

  • Material: 20CrMnTi alloy steel, forged blank, carburized quenched + precision tooth grinding treatment

  • Net Weight: approx 1.28kg (reference value)

  • Core Structure: Internal involute splines, outer lock teeth for gear engagement

  • Max Matching Input Torque: 1050 N·m (match ZF6S1000TO rated torque)

  • Function: Axial sliding lock component, cooperate with synchronizer ring & cone to fix gear position, realize smooth gear shifting

  • Category: Medium Truck ZF 6S Series Gearbox Synchronizer System Repair Spare Parts

Material & Advantages

  1. Integral forged alloy steel blank with full carburizing quenching, high tooth surface hardness, strong anti-impact and anti-fatigue performance under frequent shifting

  2. Precision ground inner splines and outer lock teeth, smooth sliding without jamming, uniform stress distribution to avoid partial tooth abrasion

  3. Strictly consistent with OEM dimensional standard, perfect fit original synchronizer hub and cone, direct bolt-on installation without cutting or modification during overhaul

  4. Effectively eliminate jumping gear, stiff gear selection and meshing abnormal noise, extend service life of matched synchronizer ring and gear set

  5. Adapt to city short-distance distribution, mountain climbing and frequent start-stop medium-load transportation working conditions

Application Scenarios

  • Replace worn, tooth-broken, deformed synchronizer sleeve marked ZF 1333 304 061 for ZF6S1000TO gearbox

  • Repair gearbox faults including jumping gear, hard shifting, abnormal grinding sound during gear selection

  • Complete synchronizer assembly overhaul and regular maintenance for medium logistics truck fleets

  • Assemble together with matched synchronizer ring and cone following official ZF assembly operation standards

Supply & After-sale

  • MOQ: 1 piece

  • Warranty: 3–6 months (exclude improper installation, overload operation, poor lubrication and natural abrasion aging)

  • Packaging: Independent shockproof foam + sealed carton protective packaging

  • Remarks: Confirm gearbox model ZF6S1000TO before order placement to guarantee complete matching

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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