Description
The Chelsea 489XFDAX-A3XK or 489XFDAXA3XK is an 8-bolt PTO assembly from the Chelsea 489 Series, designed for manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec. The one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the adapter plate and its associated leak path. Shift is wire/cable mechanical. The 1-1/4″ round output shaft is available with a keyway option. The 489 Series carries an intermittent torque rating of 201-300 lb-ft (301-400 Nm), with shaft power of 24 HP at 500 RPM and 48 HP at 1000 RPM. Internal parts share commonality with the Chelsea 442 Series. Call us to confirm proper fit for your transmission and application.
Features
8-Bolt one-piece cast iron housing mounts directly to transmission opening, eliminating adapter plate and reducing leak paths
Wire/cable mechanical shift with electric-over-air shift option available
1-1/4″ round output shaft with keyed option; 27 output configurations available in the 489 Series including 360-degree rotatable flange
Tapered bearings for greater load-bearing capability compared to needle bearing designs
Internal parts common to the Chelsea 442 Series for broad serviceability
Kit-style construction simplifies field service; greaseable output options reduce spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4″ Round; 1-1/4″ Round with Key
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm) — 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 1000 RPM
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICATION: X = No Pressure Lube; P = Pressure Lube
