Basic Info

• OE Part No.: 1358 202 020

• Cross Reference OE: DAF 2134282, Iveco 42578642, Eurotec 95007764

• Product Type: Main Shaft Friction Synchronizer Ring / Synchro Cone Ring

• Brand: ZF OEM Matching Replacement Spare Parts

• Compatible Gearbox: ZF 12TRAXON 12TX2420 / 12TX2620 / 12TX2820 AMT 12-speed heavy truck transmission

• Applicable Vehicles: Sinotruk Sitrak, FAW J7, MAN TGX, DAF XF, Iveco Stralis heavy haul tractors

• Material: High-strength alloy steel base + high-friction sintered bronze lining, precision spiral friction grooves

• Net Weight: approx 0.75kg (reference value)

• Matching Components: Synchronizer sliding sleeve, synchronizer hub, main shaft constant mesh gear

• Function: Generate friction torque to synchronize rotational speed of gear and main shaft, eliminate shift impact, achieve smooth automatic gear engagement

• Category: Heavy Truck ZF 12TRAXON AMT Transmission Main Shaft Synchronizer System Repair Spare Parts

Material & Advantages

1. Integral forged alloy steel base with high structural rigidity, resistant to deformation under high-speed friction and heavy torque impact

2. Inner wall sintered bronze friction layer with dense spiral oil storage grooves, stable oil film formation to avoid dry grinding ablation

3. Strict OEM outer diameter, inner cone angle and locking tooth dimension, perfectly fit original synchro sleeve and gear cone without grinding modification during overhaul

4. Uniform friction coefficient, greatly reduce shifting shock and gear meshing noise, extend service life of matched sliding sleeve and gear

5. Optimized heat dissipation groove design, quickly discharge friction heat to prevent overheating failure under frequent automatic shifting

6. Adapt to long-distance full-load highway logistics, mountain heavy climbing and high-frequency automatic shift working conditions

Application Scenarios

• Replace worn, groove polished, ablated original synchronizer ring marked 1358 202 020 for ZF 12TRAXON gearbox

• Fix transmission faults including stiff gear shifting, jumping gear, abnormal grinding noise during gear selection and shift impact

• Complete main shaft synchronizer disassembly overhaul and regular maintenance for logistics heavy truck fleets

• Assemble matched synchro sleeve, hub and main shaft gear following official ZF synchronizer assembly standards

Supply & After-sale

• MOQ: 1 piece

• Warranty: 3–6 months (exclude contaminated transmission oil, overload operation, improper installation and natural abrasion aging)

• Packaging: Independent shockproof foam + thick carton sealed packaging to protect friction surface from scratch

• Remarks: Confirm gearbox model 12TRAXON 12TX series before order placement to guarantee matching accuracy

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.

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.

* 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.