Briggs & Stratton 84009128 Axle Cap for ZT-3400 Integrated Zero-Turn Transaxle

The Briggs & Stratton 84009128 is a genuine OEM axle cap designed for the Hydro-Gear ZT-3400 integrated zero-turn transaxle. This cap seals the end of the axle housing on the transaxle assembly, protecting internal components from contamination, moisture, and debris that can cause premature wear and failure.

The ZT-3400 transaxle is a mid-size commercial-grade hydrostatic drive unit found on a wide range of zero-turn riding mowers from brands such as Ferris, Gravely, Scag, Cub Cadet, and others. Replacing a damaged or missing axle cap is an important part of transaxle maintenance to preserve the integrity of the axle shaft and bearing seals.

Key Features:

• Genuine OEM Briggs & Stratton replacement part
• Designed specifically for the Hydro-Gear ZT-3400 transaxle (part code 53501)
• Supersedes legacy part number 5104822X3
• Provides a precise, secure fit to seal the axle end of the transaxle housing
• Helps protect axle shaft, bearings, and lip seals from dirt, moisture, and debris
• Manufactured to original factory specifications for reliable, long-lasting performance

Always use genuine OEM Briggs & Stratton parts to ensure correct fit and to maintain the performance and longevity of your ZT-3400 transaxle system.