1372 304 042 Main Shaft Washer

1372 304 042 Main Shaft Washer

1372 304 042 Main Shaft Washer

Part No. 1372 304 042 is a main shaft washer, installed between the gears and bearings of the transmission mainshaft. It functions as isolation and positioning, sharing axial load and reducing end face wear.
With exquisite craftsmanship, it features high flatness, no burrs or deformation, uniform stress distribution and uneven wear prevention, which can accurately control the axial clearance of components.
Made of fatigue-resistant and impact-resistant material, it is suitable for 12-speed AMT transmissions including ZF 12AS2330, 12AS2530 and 12AS2730 for heavy-duty trucks and coaches.
It effectively improves faults such as mainshaft end play, component wear and operating abnormal noise. After installation, the transmission structure becomes more stable, internal transmission loss is reduced, and the overall service life of the gearbox is greatly prolonged.
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This ZF 1372 304 042 main shaft washer is compatible with 12AS series 12-speed AMT transmissions.

Precision made of high-hardness cold-rolled steel plate, it features a flat, even surface with consistent thickness, high compressive strength, and resistance to crushing and deformation.

Treated with tempering, rust prevention and hardening, it withstands long-term immersion in transmission oil, high temperatures and oxidation, and is not prone to rusting or cracking under prolonged operation.
Made to OEM standard inner and outer diameters with precise fitting clearance, it effectively shares axial pressure, buffers transmission impact, and reduces friction loss between the main shaft and gears.
It delivers stable load capacity and outstanding durability, with easy installation and accurate alignment. It is an essential precision part for the maintenance and calibration of transmission main shaft assemblies.

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