87350919 | BACK-UP RING | New Holland Construction 99969-6539

87350919 | BACK-UP RING | New Holland Construction 99969-6539Genuine 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

This component — also referred to as a mower deck belt

and light cutting tasks

5000 / 7000 series

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

Replacing worn or damaged caps restores optimal engine control and helps prevent further mechanical issues

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

This filter delivers reliable engine protection by removing contaminants and extending oil life in demanding applications

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

No drilling

This replacement filter effectively removes dust

and an on-board hose and nozzle storage

Check your mower's model and serial number against the OEM parts diagram to confirm 797720 is the correct deck belt for your unit