ZF O Ring

ZF O Ring

This genuine ZF O-ring (part number 0634 306 162) is a critical sealing component used in ZF mixer gearboxes, transmissions, and planetary steered axles. Measuring 64mm in inner diameter with a 3mm cross-section, it is constructed from NBR 70 (Nitrile Butadiene Rubber) to withstand petroleum-based oils, hydraulic fluids, and the high-stress environment of concrete mixer operations. Replacing worn or degraded O-rings during routine gearbox maintenance or rebuilds is essential to prevent fluid leaks and protect internal gears and bearings from contamination.

Key Features

• Genuine ZF OEM replacement part
• Dimensions: 64mm ID x 3mm cross-section
• Material: NBR 70 (Nitrile Butadiene Rubber) for excellent oil and wear resistance
• Manufactured to DIN 3770 standards
• Prevents fluid leakage and contamination in gearboxes and axles

Fits These Mixers

ZF, Rex, PMP, Challenge, Bonfiglioli. Fits ZF mixer gearboxes, Allison MT640/643 transmissions, and ZF APL 335, 340, 345, and 350 planetary steered axles used in heavy agricultural and construction equipment.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.