The Chelsea 489 Series Power Take-Off, part number 489ZHDAX-A6XK or 489ZHDAXA6XK, mounts directly to the 8-bolt transmission opening on most manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec models. The one-piece cast iron housing eliminates the need for an adapter plate, removing a potential leak path at the transmission face. The wire/cable mechanical shift moves the PTO in and out of engagement, and the 1-1/4" round output shaft (with key) drives the auxiliary equipment. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Strong tapered bearings replace needle bearings for greater load capacity. Internal parts are common to the Chelsea 442 Series. Call us to confirm proper fit for your application.

The Chelsea 489 Series is suited for utility trucks, snow and ice removal equipment, fire and rescue vehicles, and dump truck applications. Twenty-seven output options are available across the 489 Series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift configurations are available within the series. For detailed parts information, refer to the 489 Series Parts List (HY25-2442-M1_US) or the Chelsea Service Manual (HY25-6489-M1/US). Pro Gear and Transmission sells genuine Chelsea PTOs and components - call us to confirm the correct unit for your transmission and application.
Features
489 Series, 8-bolt direct-mount cast iron housing - no adapter plate required
Wire/cable mechanical shift engagement
1-1/4" round output shaft with key
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered output bearings for greater load capacity vs. needle-bearing designs
Kit-style serviceability with internal parts common to the Chelsea 442 Series
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable Mechanical
- Output Shaft Type: 1-1/4" Round with Key
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- 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)
- Lubricant: X = No Pressure Lube, P = Pressure Lube
Additional Information

The Chelsea 489 Series is suited for utility trucks, snow and ice removal equipment, fire and rescue vehicles, and dump truck applications. Twenty-seven output options are available across the 489 Series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift configurations are available within the series. For detailed parts information, refer to the 489 Series Parts List (HY25-2442-M1_US) or the Chelsea Service Manual (HY25-6489-M1/US). Pro Gear and Transmission sells genuine Chelsea PTOs and components - call us to confirm the correct unit for your transmission and application.
