The Chelsea 489XFAHX-A3RD or 489XFAHXA3RD is a 489 Series Power Take-Off assembly built for 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 8-bolt transmission opening, eliminating the adapter plate and its associated leak path. Output is through a 1-1/4" round shaft with key. Wire/cable mechanical shift is standard on this unit, with an electric-over-air shift option available in the 489 Series. 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. Internal parts share commonality with the 442 Series. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
489 Series one-piece cast iron housing mounts directly to 8-bolt transmission opening, no adapter plate required
Wire/cable mechanical shift; electric-over-air shift is a 489 Series option
1-1/4" round output shaft with key
Intermittent torque: 250 lb-ft (339 Nm) series rating; shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to the Chelsea 442 Series for easier parts sourcing
Kit-style design simplifies service; greaseable output shaft options reduce spline fretting and corrosion
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt (direct-mount cast iron housing, no adapter plate)
- Shift Type: Wire/Cable Mechanical
- Output Shaft Type: 1-1/4" Round with Key
- Intermittent Torque (series): 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 (500 RPM) / 48 HP (1,000 RPM) | 18 kW (500 RPM) / 36 kW (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 (see model code)
Additional Information
