New Pair Hydro-Gear ZT-3400 Transaxles ZU-KEEB-SBKC-1UXX LH & 
ZU-GEEB-SBKB-1UXX RH. 

THESE ALSO GO BY BAD BOY OEM #'S 050-6000-00 & 050-6001-01 & TORO OEM #'S 121-5764 & 121-5765

Upgrade or repair your commercial zero-turn mower with this ELITE genuine 
Hydro-Gear ZT-3400
 transaxle set. Engineered for mid-sized commercial vehicles, the ZT-3400 series is built for durability and unmatched maneuverability in tight spaces.
Key Performance Features:
  • Heavy-Duty Build: Features a sturdy 1-1/8” axle shaft designed to handle heavier loads and commercial stress. COMES WITH 5 LUG MOUNTS.
  • Enhanced Reliability: Includes the Performance Package with shock valves to protect against pressure spikes, durable cut steel gears, and a charge pump for consistent HIGH torque.
  • Smooth Operation: High-efficiency 12cc pump and 16cc motor deliver quiet, HIGH SPEED & reliable performance with 225 ft-lbs of continuous torque.
  • Easy Maintenance: Equipped with external, automotive-style oil filters for simple routine servicing.
  • FITMENT:
  • Bad Boy Mowers:
    • Outlaw Series: Specifically used in models like the 
      Outlaw Extreme
       and 
      Outlaw XP
      .
    • OEM Cross-Reference: Often listed under Bad Boy part numbers 050-6000-00 (Left) and 050-6001-01 (Right).
  • Scag Power Equipment:
    • Scag Patriot
      : Some configurations of the Patriot use the ZT-3400 series to bridge the gap between residential and full commercial strength.
  • Gravely:
    • Pro-Turn Series: Utilized in the 
      Pro-Turn 100
       and 
      Pro-Turn 200
       models which require the 1,600 lb gross vehicle weight capacity of the 
      ZT-3400
      .
  • Hustler Turf:
    • FasTrak SDX
      : A common application for the 
      ZT-3400
       to provide commercial ground speeds (up to 10 mph) and higher torque      .
  • Toro / Exmark:
    • Toro Titan HD (2000 Series)
      : Uses ZT-3400s for their heavy-duty serviceability.
    • Toro Titan HD 2000 Series: Specifically the 48", 52", and 60" decks (Models like 
      74460
      , 
      74461
      , 
      74462
      ).
    • Toro Z Master 2000 Series: Used to provide the higher ground speeds and 1,600 lb load capacity required for these commercial frames.
    • Exmark Radius S-Series
      : Often equipped with ZT-3400 transaxles to handle commercial landscaping demands.
    • MSRP OF 1899.99..... LIMITED QUANTITY AVAILABLE