The Chelsea 221 Series Power Take-Off, part number 221ZEAKX-M4XK or 221ZEAKXM4XK, is a 6-bolt mounted PTO built around a cast iron housing with tapered cone output bearings for heavy-duty load capacity. The 221 Series carries an intermittent torque rating of 250 lb-ft (339 Nm) and supports continuous operation with a 30% de-rating. Output options within the series span SAE A, SAE B, and SAE C pump flanges as well as driveline configurations. Shift types include wire/cable and mechanical. Common applications in this series include dump trucks, tow and recovery, and aerial equipment. Call us to confirm this specific configuration fits your transmission and setup.
Features
Chelsea 221 Series Power Take-Off assembly
6-bolt mounting configuration
Cast iron housing with tapered cone output bearings for heavy load capacity
Intermittent torque rating: 250 lb-ft (339 Nm) series-level
Shift options: wire/cable or mechanical
Compatible transmission manufacturers in series: Allison, Eaton/Fuller, Volvo/Mack
Tech Specs
- Series: Chelsea 221 Series Power Take-Off
- Mounting Type: 6-Bolt
- Intermittent Torque (series): 250 lb-ft / 339 Nm
- Output Types (series): SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Shift Type: Wire/Cable, Mechanical
- Housing Material: Cast Iron
- Continuous Operation: Yes, with 30% de-rating
- Transmission Compatibility (series): Allison, Eaton/Fuller, Volvo/Mack, Other
Additional Information
Parts Manual: Chelsea 221 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
