The Chelsea 524 Series Rear Mount Power Take-Off Assembly, part number 524XTDDX-A-XY or 524XTDDXAXY, is configured for Daimler DT12 transmission applications. This PTO uses the rear mount aperture to help eliminate clearance issues common in tighter installations. The series features a compact two-gear housing with three speed ratios, a pneumatic shift integrated into the PTO housing, and two direct-mount pump output flanges. Output shaft type is DIN 5462 or 4-Bolt DIN 5462. The 524 Series is used across aerial, fire, refuse, tipper, and sewer and sanitation applications. Call us to confirm proper fit for your specific transmission and truck configuration.

• Mounting Type: Rear Mount
• Shift Type: Pneumatic
• Output Shaft Type: DIN 5462, 4-Bolt DIN 5462
• Intermittent Torque: 407 lb-ft (series rating; check application pages for actual torque)
• Continuous Torque: De-rate 30% from intermittent rating
• Output Power: 49 to 57 HP at 100 RPM output shaft
• Mounting Option: ISO 7653 80mm x 80mm Mount
• Lubricant: Dry Spline
• Transmission Application: Daimler DT12
• Part Number: 524XTDDX-A-XY or 524XTDDXAXY

The Chelsea 524 Series Rear Mount PTO is designed to mount on the rear aperture of compatible transmissions, freeing up side-mount real estate and reducing conflicts with other chassis components. The housing integrates six shift options, keeping the overall installation compact. Two direct-mount pump output flanges are included. Input adapters for the series are also available for ZF, Mack mDrive, Volvo I-Shift, and Eaton Endurant transmissions. This specific assembly, 524XTDDX-A-XY, is configured for the Daimler DT12. Buyers in aerial, refuse, tipper, and fire truck segments have used the 524 Series where a rear-mount solution is preferred. Owners manuals for this series include a Daimler DT12 Adapter-specific publication (HY25-1501D-M1_US) available through Parker Chelsea.