08300627 – Ariens & Gravely OEM Extension Spring (.170″ × 1.385″ × 6.7″) – Genuine OEM Part The 08300627 Extension Spring is a genuine OEM replacement part for Ariens and Gravely zero-turn and walk-behind mowers, designed specifically for deck idler and sheave systems. This spring provides the precise tension required to keep mower deck belts properly aligned and operating smoothly under load. Manufactured to original equipment specifications, this extension spring ensures consistent belt tension, reduced slippage, and dependable deck performance, making it ideal for both residential and commercial mowing applications. Features & Benefits OEM Part Number: 08300627 Brand Compatibility: Ariens & Gravely Part Type: Extension Spring Spring Size: .170″ wire × 1.385″ OD × 6.7″ length Maintains correct deck belt tension Supports smooth idler and pulley operation Heavy-duty steel construction for long service life Designed for high-use mower deck applications Applications The 08300627 Ariens & Gravely Extension Spring is commonly used in: ZT Series: ZT 34, ZT 42, ZT 52 ZT X Series: 42″, 48″, 52″ decks ZT XL Series: 42″, 48″, 52″, 60″ decks Pro-Walk models (48HE, 48 LP, 52HE) Pro-Stance Ultra models (52″, 60″, 72″ FX1000 & FX1000 EFI) Deck idler, pulley, and sheave assemblies This spring is essential for maintaining proper mower deck belt tracking and preventing premature belt and idler wear. Why Choose a Genuine Ariens & Gravely OEM Spring? Guaranteed OEM fit and performance Maintains factory deck tension specifications Extends belt and idler component life Built for professional and heavy-duty use The 08300627 Ariens & Gravely OEM Extension Spring (.170″ × 1.385″ × 6.7″) is the correct replacement to restore proper deck belt tension and ensure reliable mower deck operation.