ZF Copper Sealing Ring

ZF Copper Sealing Ring

This genuine ZF copper sealing ring (part number 0634801074) is a heavy-duty crush washer manufactured to DIN 7603-CU standards. It is specifically designed for use in ZF mixer gearboxes and transmissions to provide a secure, leak-proof seal under high pressure. When compressed during installation, the copper material conforms to mating surfaces, effectively sealing drain plugs, filler necks, and banjo bolts. Replacing this sealing ring during routine maintenance or fluid changes is critical to prevent gear oil leaks and ensure the long-term reliability of the gearbox.

Key Features

• Manufactured to DIN 7603-CU standards for copper sealing rings
• Constructed from solid copper for excellent corrosion resistance and malleability
• Crush-fit design conforms to mating surfaces for a tight, reliable seal
• Genuine ZF OEM replacement part ensuring exact fitment

Fits These Mixers

ZF, Rex, PMP, Challenge, Bonfiglioli. Compatible with a wide range of ZF transmissions and mixer gearboxes, including ZF WG200, WG180, WSK 400, and 8S-1350 models. Commonly used on drain plugs, filler necks, and hydraulic banjo bolts.

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.