The Chelsea 524 Series rear mount PTO assembly, part number 524XTACX-F-XK or 524XTACXFXK, is designed specifically for ZF Astronic automated transmissions. The 524 Series uses the rear mount aperture of compatible transmissions to eliminate clearance problems common with side-mount units. Its compact two-gear housing supports three speed ratios and a pneumatic shift mechanism built directly into the housing, keeping the installation footprint small. Output flanges accept direct pump mounting via DIN 5462 and 4-bolt DIN 5462 output shaft configurations. The mounting option uses an ISO 7653 80mm x 80mm interface with a dry spline input. Series intermittent torque is rated up to 407 lb-ft, with continuous operation requiring a 30% de-rate. Call us to confirm proper fit for your application.
Features
Chelsea 524 Series rear mount design eliminates clearance issues using the transmission rear mount aperture
Pneumatic shift with six shift options integrated into the compact PTO housing
ISO 7653 80mm x 80mm mounting interface with dry spline input
DIN 5462 and 4-bolt DIN 5462 output shaft types for direct pump mounting
Series intermittent torque rating up to 407 lb-ft; continuous use requires 30% de-rate
Compatible with ZF Astronic transmissions; input adapters also available for Mack mDrive, Volvo I-Shift, and Eaton Endurant
Tech Specs
- Shift Type: Pneumatic
- Mounting Type: Rear Mount
- Mounting Interface: ISO 7653 80mm x 80mm
- Input: Dry Spline
- Output Shaft Type: DIN 5462 / 4-Bolt DIN 5462
- Intermittent Torque Rating (Series): 407 lb-ft
- Continuous Torque: De-rate 30% from intermittent rating
- Output Power (Series, at 1000 RPM output shaft): 49 to 57 HP / 37 to 40 kW
- Transmission Application: ZF Astronic
- Product Series: Chelsea 524
