Basic Info

• OE Part No.: 1328 333 010

• Cross Reference OE: ZF 1328 333 009 (matching pair), DAF 1649203, Iveco 42545975, Eurotec 950057061688阿...

• Product Type: Auxiliary Box Range Synchronizer Cone / Splitter Synchro Cone Gear

• 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, Foton GTL/GT heavy-duty tractors

• Material: 20CrMnTi alloy steel integral forging, full carburized quenching + ultra-precise conical surface grinding

• Net Weight: approx 4.45kg (reference value)

• Matching Components: Range friction synchronizer ring, auxiliary box shift sliding sleeve, high-low range shift fork

• Function: Provide conical friction surface for speed synchronization; outer lock teeth mesh with shift sleeve to lock low/high speed gear ranges

• Category: Heavy Truck ZF 12TRAXON AMT Transmission Auxiliary Box Synchronizer System Repair Spare Parts

Material & Advantages

1. Integral forged alloy steel blank with full carburizing quenching, high hardness on cone surface and lock teeth, excellent impact & fatigue resistance under frequent high-low range switching

2. Ultra-precise CNC ground inner conical friction surface, uniform contact fit with synchro ring to form stable lubricating oil film, effectively avoid dry grinding ablation

3. Strict OEM outer lock tooth profile, cone angle and overall dimension, perfectly match original auxiliary box synchronizer assembly without cutting or polishing modification during overhaul

4. Optimized tooth root transition arc reduces stress concentration, greatly lower lock tooth breakage risk under mountain heavy-load climbing conditions

5. Standard meshing clearance eliminates range shift lag and abnormal grinding vibration noise, extend service life of matched friction ring and shift sleeve

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

Application Scenarios

• Replace worn, tooth-broken, ablated original synchronizer cone marked 1328 333 010 for ZF 12TRAXON gearbox

• Fix transmission faults including delayed high-low range switching, jumping gear, abnormal grinding noise during range change and shift impact

• Complete auxiliary box synchronizer disassembly overhaul and regular maintenance for logistics heavy truck fleets

• Assemble matched friction synchro ring and range shift sleeve following official ZF auxiliary box 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 conical friction surface and lock teeth from scratch & deformation

• 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.