The Chelsea 489 Series Power Take-Off Assembly, part number 489GQAHX-W3XD or 489GQAHXW3XD, fits most manual transmissions with an 8-bolt PTO mounting aperture, including Eaton/Fuller, Volvo/Mack, and Tremec applications. The one-piece cast iron housing bolts directly to the transmission opening without an adapter plate, eliminating an extra potential leak path. Shift is wire/cable mechanical. Output shaft is a 1-1/4" round with key. Intermittent torque rating for the 489 Series is 250 lb-ft (339 Nm); shaft power is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Tapered bearings replace needle bearings for greater load capacity. Internal parts are common to the Chelsea 442 Series, making sourcing straightforward. Call us to confirm proper fit for your transmission.
Features
Chelsea 489 Series, 8-bolt one-piece cast iron housing mounts directly to transmission without an adapter plate
Wire/cable mechanical shift; electric-over-air shift option available within the series
1-1/4" round output shaft with key; greaseable output options to reduce spline fretting and corrosion
Intermittent torque: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings for greater load-bearing capability compared to needle-bearing designs
Kit-style construction with internal parts common to the Chelsea 442 Series simplifies service and parts sourcing
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (direct-mount, one-piece cast iron housing, no adapter plate required)
- 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 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 aperture
- Lubricant: 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.
