The Chelsea 489 Series Power Take-Off Assembly, part number 489KSAHX-H6XK or 489KSAHXH6XK, fits manual transmissions with an 8-bolt PTO mounting aperture, including Eaton Fuller, Volvo, and Mack applications. The one-piece cast iron housing bolts directly to the 8-bolt opening, eliminating the need for an adapter plate and reducing potential leak paths. This unit uses a wire/cable mechanical shift and delivers up to 250 lb-ft (339 Nm) intermittent torque, the same torque capacity as the 442 Series. Output shaft is a 1-1/4" round with key. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal parts are common to the Chelsea 442 Series, simplifying service. Call us to confirm proper fit for your application.
The Chelsea 489 Series is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series features eleven internal speed ratios and twenty-seven output options, including Chelsea's 360-degree rotatable flange. Tapered bearings replace needle bearings for greater load-bearing capability. For detailed parts and service information, refer to the 489 Series Parts List (HY25-2442-M1_US) and Chelsea Service Manual (HY25-6489-M1/US).
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, eliminating the adapter plate and reducing leak paths
Wire/cable mechanical shift with electric-over-air shift option available in the 489 Series
250 lb-ft (339 Nm) intermittent torque rating matches the Chelsea 442 Series capacity
1-1/4" round output shaft with keyway; greaseable output options reduce shaft spline fretting and corrosion
Kit-style design with internal parts common to the Chelsea 442 Series for straightforward service
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tech Specs
- 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
- Shift Type: Wire/Cable Mechanical
- 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)
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 8-Bolt
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt aperture
- Lubricant Type: X = No Pressure Lube, P = Pressure Lube
- Product Series: 489
Additional Information
The Chelsea 489 Series is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series features eleven internal speed ratios and twenty-seven output options, including Chelsea's 360-degree rotatable flange. Tapered bearings replace needle bearings for greater load-bearing capability. For detailed parts and service information, refer to the 489 Series Parts List (HY25-2442-M1_US) and Chelsea Service Manual (HY25-6489-M1/US).
Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
