The Chelsea 489 Series Power Take-Off, part number 489XRITX-A5RA or 489XRITXA5RA, mounts directly to an 8-bolt transmission opening on most manual transmissions, including Eaton/Fuller, Volvo/Mack, and Tremec units. Its one-piece cast iron housing eliminates the need for an adapter plate, removing a potential leak path at the mounting face. Output is through a 1-1/4" round shaft with keyway. Shift actuation is wire/cable mechanical. The 489 Series shares internal components with the 442 Series and delivers intermittent torque in the 201-300 lb-ft range. Shaft power is 24 HP at 500 RPM and 48 HP at 1000 RPM. For continuous-duty applications, consult the application pages for de-rated torque values. Call us to confirm proper fit for your transmission.

The Chelsea 489 Series PTO is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft. For parts and service reference, consult the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
Features
8-bolt one-piece cast iron housing mounts directly to the transmission opening, no adapter plate required
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
Internal parts common to the Chelsea 442 Series; kit-style design simplifies service
Greaseable output options available to reduce spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct to transmission, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm); 250 lb-ft (339 Nm) - Check Application Pages for Actual Torque Ratings
- CONTINUOUS TORQUE: De-rate intermittent rating 30% - Check Application Pages for Actual Torque Ratings
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1000 RPM
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube (see model code)
Additional Information

The Chelsea 489 Series PTO is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft. For parts and service reference, consult the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
