The Chelsea 447 Series Power Take-Off, part number 447KSESX-A5RB or 447KSESXA5RB, is a 6-bolt mounted PTO engineered around a one-piece input gear with a gap between its two sets of gear teeth. That design eliminates interference problems within the PTO aperture on transmissions that have adjacent gear interference, so no adapter plate is required for most installations. Shift is air shift. The output is a rotatable SAE B 4-bolt flange with a 7/8" 13-tooth SAE B shaft. Intermittent torque is rated at 225 lb-ft (305 Nm); check application pages for actual ratings specific to your installation. Shaft power is 21 HP at 500 RPM and 43 HP at 1000 RPM. Compatible transmission manufacturers include Eaton/Fuller, ZF, and others. Call us to confirm proper fit for your application.
Features
6-bolt mounting, no adapter plate required for most installations
Air shift
Rotatable SAE B 4-bolt flange with a 7/8" 13-tooth SAE B shaft
Intermittent torque: 225 lb-ft (305 Nm) - verify actual rating on application pages
Shaft power: 21 HP at 500 RPM, 43 HP at 1000 RPM
One-piece input gear design eliminates interference problems inside the transmission/PTO opening
Tech Specs
- Intermittent Torque: 225 lb-ft / 305 Nm (check application pages for actual torque ratings)
- Continuous Torque: De-rate intermittent rating by 30% (check application pages for actual torque ratings)
- Mounting Option: Standard Mount without Stud Kit (K)
- Gear Ratio Code: S
- Input Gear Designator: ES
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: Rotatable SAE B 4-Bolt Flange, SAE B Shaft (7/8" 13T) (RB)
- Mounting Type: 6-Bolt
- Output Power: 36-45 HP / 31-40 kW
- Shaft Power: 21 HP (500 RPM), 43 HP (1000 RPM), 16 kW (500 RPM), 32 kW (1000 RPM)
- Compatible Transmissions: Eaton/Fuller, ZF, Other
Additional Information
The Chelsea 447 Series uses tapered bearings rather than needle bearings for greater load-bearing capability. The series offers special installation options for Eaton FS series transmissions and Nissan/UD MLS series transmissions, including available adapters or installation kits where required. Twenty-six output options and four internal speed ratios are available across the 447 Series lineup. Typical applications include utility trucks, dump trucks, aerial equipment, snow and ice removal vehicles, and fire and rescue apparatus. The 447 Series PTO also shares many configuration options with the popular Chelsea 442 Series.Parts manual and diagrams: Chelsea 447 Series PTO parts list with prices
