524XMLZX-D-XK Chelsea 524 Series Rear Mount PTO

The Chelsea 524XMLZX-D-XK or 524XMLZXDXK is a 524 Series rear mount power take-off with pneumatic shift, designed for ZF, Volvo/Mack (including I-Shift and mDrive), Eaton Endurant, and other compatible transmissions. The rear mount aperture position helps clear tight under-cab spaces where side-mount units will not fit. The two-gear design keeps the housing compact while delivering output power from 49 to 57 HP (at 100 RPM output shaft). The ISO 7653 80mm x 80mm mount and dry-spline input keep installation straightforward. Output shaft options include DIN 5462 and 4-Bolt DIN 5462 flanges. Six shift options are integrated into the housing. Call us to confirm proper fit for your transmission and application.

Features

Rear mount design eliminates clearance issues on compatible transmissions
Pneumatic shift with six shift options integrated into the PTO housing
ISO 7653 80mm x 80mm mount (Mounting Option X)
Output power 49-57 HP at 100 RPM output shaft (37-40 kW)
Continuous torque rated up to 300 lb-ft (407 Nm) - check application pages for actual ratings
DIN 5462 and 4-Bolt DIN 5462 output shaft types; dry-spline input
Compatible with input adapters for ZF, Volvo I-Shift, Mack mDrive, and Eaton Endurant transmissions

Tech Specs

• Transmission Compatibility: ZF, Volvo/Mack (I-Shift, mDrive), Eaton Endurant, and other compatible transmissions
• Product Series: 524
• Mounting Type: Rear Mount
• Mounting Option: ISO 7653 80mm x 80mm (X)
• Shift Type: Pneumatic
• Output Shaft Type: DIN 5462 or 4-Bolt DIN 5462
• Lubricant/Spline Type: Dry Spline (X)
• Output Power: 49-57 HP / 37-40 kW (at 100 RPM output shaft)
• Shaft Power at 1000 RPM: 57 HP / 40 kW
• Continuous Torque: 300 lb-ft / 407 Nm (check application pages for actual torque ratings)

Additional Information

The Chelsea 524 Series rear mount PTO uses a two-gear design that keeps the housing compact, making it well-suited for vocational trucks where side-mount clearance is limited. Three speed ratios are available across the series to match a range of application requirements. Six shift options are built into the PTO housing, saving space compared to external shift assemblies. Two direct-mount pump output flanges are included. The sealed bayonet connector for the indicator switch speeds up installation and service. Typical markets include aerial, fire, refuse, tippers, and sewer and sanitation equipment. Input adapters cover ZF, Mack mDrive, Volvo I-Shift, and Eaton Endurant transmissions. Refer to the application pages for torque de-rate and duty-cycle guidance specific to your installation.