Basic Info

• OE Part No.: 1358 334 033

• Cross Reference OE: MAN 81325150134, Iveco 42578777, Eurotec 95008769

• Product Type: Auxiliary Box Range Change Shift Fork / Splitter Range Fork

• 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: 40Cr alloy steel integral forging, overall quenched & tempered, wear-resistant fork foot surfacing treatment

• Net Weight: approx 2.55kg (reference value)

• Matching Components: Range synchronizer sleeve, shift rail, sliding bushing, pneumatic shift actuator

• Function: Push auxiliary box range synchronizer sleeve, switch low range and high range to expand total gear ratio range of 12-speed gearbox

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

Material & Advantages

1. Integral forged 40Cr alloy steel blank with overall quenching and tempering, high structural rigidity, anti-bending and anti-fatigue under frequent pneumatic shifting impact

2. Fork foot contact surface built-up wear-resistant alloy layer, reduce friction loss with synchro sleeve, extend service life and avoid jamming during range shift

3. Strict OEM fork body length, fork opening width and guide hole size, perfectly fit original shift rail and sliding bushing without cutting or polishing modification during overhaul

4. Optimized force-bearing arc design to lower stress concentration, prevent fork breakage under long-distance full-load mountain transport

5. Standard assembly clearance eliminates high-low range switching lag and abnormal vibration noise, protect auxiliary box synchronizer assembly from premature abrasion

6. Adapt to long-distance highway logistics, mountain heavy climbing and frequent high-low range switch working conditions

Application Scenarios

• Replace worn, bent, deformed original range shift fork marked 1358 334 033 for ZF 12TRAXON gearbox

• Repair transmission faults including slow high-low range switching, range shift failure, abnormal grinding noise when switching speed ranges

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

• Assemble matched range synchronizer sleeve, shift rail and sliding bushing following official ZF assembly standards

Supply & After-sale

• MOQ: 1 piece

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

• Packaging: Independent shockproof foam + thick carton sealed packaging to prevent fork body bending and scratch damage

• 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.