The Chelsea 447 Series Power Take-Off, part number 447XSETX-A3RK or 447XSETXA3RK, is a 6-bolt mounted PTO engineered around a one-piece input gear with a deliberate space between its two sets of gear teeth. That gap eliminates internal interference problems inside the transmission PTO aperture, a common fitment challenge on Eaton/Fuller, ZF, and other transmission brands this unit is rated for. Shift is accomplished via air shift actuation. The output is a rotatable SAE B 2 or 4-bolt flange with a 7/8" 13-tooth SAE B shaft. Output power reaches 43 HP at 1,000 RPM, with intermittent torque rated at 201-300 lb-ft (check application pages for actual torque ratings). Tapered bearings replace the needle-bearing design found in comparable units, providing greater load-bearing capability. Call us to confirm proper fit for your application.
Features
6-bolt mounting, compatible with Eaton/Fuller, ZF, and other transmission brands
Air shift actuation
Rotatable SAE B 2 or 4-bolt flange with a 7/8" 13-tooth SAE B shaft
One-piece input gear eliminates internal interference at the transmission PTO aperture
Tapered bearings for greater load-bearing capability over needle-bearing designs
43 HP output at 1,000 RPM; intermittent torque 201-300 lb-ft (verify actual rating on Chelsea application pages)
Tech Specs
- Mounting Type: 6-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: S
- Input Gear Designator: ET
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 3
- Output Option: Rotatable SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T) (RK)
- Transmission Compatibility: Eaton/Fuller, ZF, Other
- Output Power: 36-45 HP (31-40 kW)
- Shaft Power: 21 HP (500 RPM), 43 HP (1,000 RPM) / 16 kW (500 RPM), 32 kW (1,000 RPM)
- Intermittent Torque: 201-300 lb-ft / 301-400 Nm (check application pages for actual torque ratings)
- Continuous Torque: De-rate intermittent torque rating by 30% (check application pages for actual torque ratings)
Additional Information
The Chelsea 447 Series shares the broad shift and output flexibility of the popular 442 Series, and adds special options for simplified installation on Eaton FS series transmissions. Twenty-six output options are available across the 447 Series, including Chelsea's 360-degree rotatable flange. Four internal speed ratios and eleven shift options are offered at the series level. The "X" lubricant designation in this part number indicates no pressure lube is required. An adapter or installation kit may be required for certain vehicle applications, confirm with the application pages or call Pro Gear and Transmission to verify fitment before ordering.Parts manual and diagrams: Chelsea 447 Series PTO parts list with prices
