OEM Grade 21ft ZTS Rotary Steering System Package Compatible with Outboard Motor Boats Up to 25 Feet Zero Torque Helm Bezel and Cable Kit 3/4 Inch Tapered Shaft Marine Boat 900-510021

21 Foot ZTS Rotary Steering System Package Compatible with Outboard Inboard and Stern Drive Boats Up to 25 Feet Complete ZTS (Zero Torque System) rotary steering package includes single station helm 90-degree snap-on bezel and 21ft galvanized cable. Designed for mechanical non-power-assisted outboard engines up to V-4 configuration. Zero torque design minimizes engine feedback for smooth effortless operation. Bolt-in replacement for standard 2900 rotary systems with EZ Clip quick connect. OEM PART NUMBERS: · 900-510021 SPECIFICATIONS: · Type: ZTS Rotary Steering System Package · Cable Length: 21 Feet · Helm Type: Single Station ZTS Rotary Helm · Bezel: 90-Degree Snap-On Black Bezel · Shaft: Standard 3/4 Inch Tapered · Turns Lock-to-Lock: Approximately 3.8 · Maximum Wheel Diameter: 16 Inches (406.4mm) · Minimum Cable Bend Radius: 8 Inches (203.2mm) · Cable Core: Galvanized Steel Wire · Cable Output Ends: Stainless Steel · Cable Connection: EZ Clip Quick Connect · Engine Rating: Outboard Engines Up to V-4 · Boat Length: Up to 25 Feet (7.5 Meters) APPLICATIONS: · Single station outboard boats up to 25 feet · Outboard engines up to V-4 configuration · Inboard marine engines with rotary steering · Stern drive boats with rotary steering systems · Replaces standard 2900 rotary steering systems · Compatible with most rotary helm wheels up to 16 inches PACKAGE INCLUDES: · ZTS Rotary Steering Helm (Single Station) · 90-Degree Snap-On Mounting Bezel · 21 Foot Galvanized Rotary Steering Cable · Mounting Hardware and Installation Kit ⚠️ Verify OEM part number from your original unit before ordering. Measure cable routing path to confirm 21ft length is correct for your boat.