87350919 | BACK-UP RING | New Holland Construction 99969-6539 Compatible Equipment▼ Belt drive part

Compatible Equipment▼ Belt drive part 607400 from Big Dog Excel Industries MTD is designed to fit select Big Dog zero-turn mower models built on the Excel Industries MTD platform

including certain IS and ISX series models where the Cadco cutting system was factory-installed

5000 / 7000 series

and light cutting tasks

This OEM gasket ensures proper sealing and prevents fluid leaks in critical engine and hydraulic system connections

87350919 | BACK-UP RING | New Holland Construction 99969-6539 Compatible Equipment▼ Belt drive partGenuine New Holland Construction backup ring (part #87350919). This precision engineered component provides critical sealing and support in hydraulic and mechanical assemblies. Designed to prevent extrusion and protect primary seals from damage under high pressure and extreme operating conditions. OEM quality construction ensures reliable performance and extended equipment life. Essential replacement part for New Holland construction machinery