The Chelsea 489 Series Power Take-Off Assembly, part number 489XFAHX-V3AZ or 489XFAHXV3AZ, is an 8-bolt PTO designed to mount directly to most manual transmissions with an 8-bolt aperture, including Eaton/Fuller, Volvo/Mack, and Tremec units. The one-piece cast iron housing eliminates the adapter plate found on earlier designs, reducing both mounting time and potential leak paths. Intermittent torque capacity matches the 442 Series at 250 lb-ft (339 Nm), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Shift is wire/cable mechanical. Output shaft is 1-1/4" round with key. For continuous-duty torque ratings, check the Chelsea 489 Series application pages. Call Pro Gear and Transmission to confirm proper fit for your transmission and application.
The Chelsea 489 Series shares internal components with the proven 442 Series, giving fleet shops a familiar service path. The PTO suits vocational applications including dump trucks, utility trucks, snow and ice removal equipment, and fire and rescue vehicles. Eleven internal speed ratios are available across the 489 Series lineup, and twenty-seven output configurations are offered, including Chelsea's 360-degree rotatable flange. For parts manual and service documentation, refer to Chelsea 489 Series Parts List HY25-2442-M1_US and Service Manual HY25-6489-M1/US.
Features
8-bolt one-piece cast iron housing mounts directly to compatible manual transmissions, no adapter plate required
Wire/cable mechanical shift with electric-over-air shift option available
1-1/4" round output shaft with key; greaseable output options reduce spline fretting and corrosion
Intermittent torque rating: 250 lb-ft (339 Nm), matching 442 Series capacity
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM (18 kW / 36 kW)
Kit-style construction shares internal parts with the Chelsea 442 Series for easier servicing
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (one-piece cast iron housing, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- INTERMITTENT TORQUE: 250 lb-ft / 339 Nm (check application pages for continuous-duty ratings)
- OUTPUT POWER: 46-55 HP / 31-40 kW
- SHAFT POWER: 24 HP (500 RPM) / 48 HP (1,000 RPM) | 18 kW (500 RPM) / 36 kW (1,000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT TYPE: X = No Pressure Lube, P = Pressure Lube (see model code)
Additional Information
The Chelsea 489 Series shares internal components with the proven 442 Series, giving fleet shops a familiar service path. The PTO suits vocational applications including dump trucks, utility trucks, snow and ice removal equipment, and fire and rescue vehicles. Eleven internal speed ratios are available across the 489 Series lineup, and twenty-seven output configurations are offered, including Chelsea's 360-degree rotatable flange. For parts manual and service documentation, refer to Chelsea 489 Series Parts List HY25-2442-M1_US and Service Manual HY25-6489-M1/US.
