The Chelsea 489 Series Power Take-Off, part number 489XSAHX-W6XK or 489XSAHXW6XK, is an 8-bolt PTO assembly designed for most manual transmissions including Eaton Fuller, Mack, and Tremec. Its one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. The 489 Series delivers the same intermittent torque capacity as 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. This unit uses a wire/cable mechanical shift and accepts a 1-1/4" round output shaft with key. Tapered bearings replace needle bearings for greater load capacity. Call us to confirm proper fit for your transmission and application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option also available in the 489 Series
Intermittent torque capacity: 250 lb-ft (339 Nm), matching the Chelsea 442 Series
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
1-1/4" round output shaft with key; greaseable output options available to reduce spline fretting and corrosion
Kit-style construction with internal parts common to the 442 Series for straightforward servicing
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- 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 Actual Torque Ratings
- Continuous Torque: De-rate intermittent torque rating by 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 1,000 RPM
- Transmission Compatibility: Eaton Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- Lubricant Designation: X = No Pressure Lube; P = Pressure Lube
Additional Information
Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) - exploded views, item numbers and the full parts breakdown for this series.
