Transmission Vent Valves Set of 2 for Tuff Torq Hydrostatic Transmissions TZ-300 TZ-400 TZ-450B SKU: 168T2024250-X2

When hydrostatic transmission vent valves fail or get clogged, pressure builds inside the transmission housing causing fluid leaks at seals and reduced performance. This set of two genuine Spartan vent valves restores proper pressure equalization to keep your Tuff Torq transmission running smoothly and prevent costly seal damage.

Why Genuine Matters

• Precise engineering matches Tuff Torq TZ-300, TZ-400, and TZ-450B specifications
• Heat and corrosion resistant materials withstand daily mowing demands
• Proper venting prevents internal pressure buildup that damages seals
• Set of two valves covers complete transmission venting requirements

Install with the mower on level ground and ensure vent openings remain clear for optimal airflow. When transmission seals start weeping or performance drops, these vent valves often provide the fix you need. Trust S&H Parts' 55+ years of experience to get your mower back to peak operation.