The Chelsea 447 Series Power Take-Off Assembly, part number 447KWESX-W3RA or 447KWESXW3RA, is a 6-bolt mounted PTO designed to eliminate internal gear interference problems within the transmission PTO aperture. A one-piece input gear with a space between its two sets of gear teeth prevents adjacency conflicts that cause fitment headaches on many transmission housings. This unit shifts via wire/cable mechanical actuation and has a rotatable SAE B 2-bolt flange with a 7/8" 13-tooth SAE B shaft. Series output ratings reach 21 HP at 500 RPM and 43 HP at 1,000 RPM, with intermittent torque up to 225 lb-ft (check application pages for actual torque ratings). Compatible transmissions include Eaton/Fuller, ZF, and other manufacturers. Call us to confirm proper fit for your specific transmission.
Features
6-bolt mounting, no adapter plate required for most applications
Wire/cable mechanical shift actuation
Rotatable SAE B 2-bolt flange with a 7/8" 13-tooth SAE B shaft
One-piece input gear eliminates adjacent gear interference inside the transmission PTO opening
Series shaft power: 21 HP at 500 RPM, 43 HP at 1,000 RPM
Compatible with Eaton/Fuller, ZF, and other transmission manufacturers
Tech Specs
- Intermittent Torque: 201-300 lb-ft (301-400 Nm); 225 lb-ft / 305 Nm (check application pages for actual torque ratings)
- Continuous Torque: De-rate intermittent torque rating by 30% (check application pages for actual torque ratings)
- Mounting Option: Standard Mount without Stud Kit (K)
- Gear Ratio Code: W
- Input Gear Designator: ES
- Lube Option: No Pressure Lube (X)
- Shift Option: Cable (Wire) Shift (W)
- Assembly Arrangement: 3
- Output Option: Rotatable SAE B 2-Bolt Flange, SAE B Shaft (7/8" 13T) (RA)
- Output Power: 36-45 HP (31-40 kW)
- Shaft Power: 21 HP at 500 RPM, 43 HP at 1,000 RPM (16 kW at 500 RPM, 32 kW at 1,000 RPM)
- Mounting Type: 6-Bolt
- Compatible Transmissions: Eaton/Fuller, ZF, Other
