ZT Gearbox Plastic Sight Glass

ZT Gearbox Plastic Sight Glass

This plastic oil sight gauge is a direct replacement component for ZF mixer drum drive gearboxes, including the P7300, PK7500, and CML 10 models. It threads directly into the main housing of the gearbox, allowing operators and maintenance personnel to quickly verify gear oil levels and fluid quality without opening the system. Manufactured from durable, oil-resistant plastic, it provides a cost-effective alternative to aluminum sight glasses while maintaining a reliable seal to prevent leaks. Regularly checking the sight glass helps prevent catastrophic gearbox failures caused by low lubrication in heavy-duty concrete mixer trucks.

Key Features

• Transparent plastic construction for quick, accurate visual fluid level inspections
• Threaded design for secure, leak-free installation into the gearbox main housing
• Direct replacement for damaged, clouded, or leaking original sight glasses
• Cost-effective alternative to aluminum sight gauges

Fits These Mixers

ZF, Rex, PMP, Challenge, Bonfiglioli. Fits ZF mixer drum drive gearboxes, specifically models P7300, PK7500, and CML 10. Commonly found on Con-Tech, McNeilus (MTM), and Kimble concrete mixer trucks.

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.