1358 304 240 Hexagonal Key

1358 304 240 Hexagonal Key

1358 304 240 Hexagonal Key

Part No. 1358 304 240 is a hexagonal key, serving as the positioning and transmission key between the mainshaft and gears of ZF 12-speed AMT transmissions. It plays a vital role in circumferential fixing, torque transmission, and preventing gear idling and slipping.
Adopting integral precision grinding forming technology, it features high-precision hexagonal shape and seamless fitting with the clamping groove, ensuring even transmission force without eccentric load.
The material is quenched and tempered for high wear resistance and compression resistance, resisting edge chipping and breakage.
It is compatible with ZF 12AS2330, 12AS2530, 12AS2730 and other models for heavy-duty trucks and large buses. It effectively eliminates faults such as key wear, key slipping, gear displacement and transmission abnormal noise, delivering accurate and stable transmission after replacement.
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12AS series 12-speed AMT transmissions.
Forged from high-hardness alloy steel, it boasts high overall strength and good toughness, with excellent shear and torsion resistance, capable of withstanding enormous torque impact under heavy-load transmission conditions.
With a precision ground surface and accurate standard dimensions, it fits tightly in position and is not prone to slipping, deformation or fracture.
It resists transmission oil corrosion and fatigue aging, and remains free from wear and looseness under long-term high-frequency operation. Easy to install and firmly positioned, it effectively locks the relative position of gears and the mainshaft. It is an indispensable OEM precision part for transmission positioning in gearboxes.

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