Transmission Service Kit for Spartan RZ-PRO Zero-Turn Mowers with Tuff Torq TZ-450B Hydrostatic Driv SKU: 187Q2199300-X1

When hydrostatic transmissions start losing power, slipping under load, or running hot during long mowing sessions, worn internal components are usually the culprit. This genuine Tuff Torq service kit provides the essential replacement parts to restore full drive power and smooth operation to your Spartan RZ-PRO's TZ-450B transmission.

Why Genuine Service Matters

• Factory-correct components ensure precise fit and proper sealing
• Engineered for the specific pressure and temperature demands of TZ-450B drives
• Prevents costly transmission damage from worn seals and contaminated fluid
• Restores factory performance for consistent drive response on both sides

Two service kits are required for complete mower maintenance - one for each transmission. Installing fresh service components on both sides at the same time ensures even drive performance and prevents the remaining transmission from being overworked. Our parts team can help verify transmission compatibility if you need assistance identifying your specific model.