The Chelsea 489 Series Power Take-Off Assembly, part number 489GLAHX-P5AF or 489GLAHXP5AF, mounts directly to an 8-bolt transmission opening without an adapter plate, removing a potential leak path. This unit uses a wire/cable mechanical shift and carries an intermittent torque rating of 201-300 lb-ft (301-400 Nm) for the series. The 1-1/4" round output shaft with key supports shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. The one-piece cast iron housing fits manual transmissions including Eaton Fuller, Mack, and Tremec. Strong tapered bearings handle greater loads than needle-bearing designs, and internal parts are common to the Chelsea 442 Series. Call us to confirm proper fit for your application.

The Chelsea 489 Series is designed for vocational and municipal applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The integral 8-bolt housing shares internal components with the proven 442 Series, offering 27 output options and 11 internal speed ratios. The greaseable output shaft reduces pump shaft spline fretting and corrosion over time.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift with Electric over Air shift option available in the 489 Series
Intermittent torque rating: 201-300 lb-ft (301-400 Nm) series rating
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
1-1/4" round output shaft with key; pressure lube (P) configuration
Internal parts common to Chelsea 442 Series; kit-style design simplifies service
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (direct mount, no adapter plate)
- Shift Type: Wire/Cable Mechanical
- Output Shaft Type: 1-1/4" Round with Key
- Lubricant: Pressure Lube (P designation)
- Intermittent Torque: 201-300 lb-ft / 301-400 Nm (check application pages for actual torque rating)
- 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)
- Compatible Transmissions: Eaton Fuller, Mack, Tremec, and other 8-bolt manual transmissions
Additional Information

The Chelsea 489 Series is designed for vocational and municipal applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The integral 8-bolt housing shares internal components with the proven 442 Series, offering 27 output options and 11 internal speed ratios. The greaseable output shaft reduces pump shaft spline fretting and corrosion over time.
