08300728 – Extension Spring (Genuine Ariens / Gravely OEM Part) The 08300728 Extension Spring is a genuine OEM tension spring designed to maintain proper belt tension and component alignment in Ariens and Gravely lawn and garden equipment. This spring plays a critical role in drive systems, mower decks, transaxle drives, and idler assemblies by providing consistent return force and smooth operation. Manufactured to original equipment specifications, this extension spring delivers reliable performance, durability, and long service life under demanding operating conditions. Replacing worn or stretched springs helps prevent belt slippage, uneven drive performance, and premature wear of related components. Product Details Part Number: 08300728 Part Type: Extension Spring OEM Status: Genuine Ariens / Gravely replacement part Function: Maintains belt tension and return force Condition: New, OEM Key Benefits Ensures proper belt and drive system tension Helps maintain smooth, consistent equipment operation Reduces wear on belts, idlers, and transaxle components Built to OEM specifications for correct fit and performance Applications Commonly used on: Ariens & Gravely zero-turn mowers Pro-Turn, Pro-Stance, ZT, ZTX, ZT XL, ZT HD, Pro-Walk, Compact-Pro, Pro-Master models Mower decks, transaxle drives, idler systems, and belt drive assemblies Using the 08300728 OEM extension spring ensures dependable operation and helps restore factory-level performance to your Ariens or Gravely equipment.
