Description
The Chelsea 489XAITX-A3XD or 489XAITXA3XD is a 489 Series Power Take-Off assembly with wire/cable mechanical shift, designed for Eaton/Fuller, Volvo/Mack, and other manual transmissions with an 8-bolt PTO opening. The one-piece cast iron housing bolts directly to the transmission face, eliminating the adapter plate and its associated leak path. Intermittent torque rating for the 489 Series is 250 lb-ft (339 Nm); shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Output shaft is a 1-1/4″ round with key. Internal parts are common to the Chelsea 442 Series, keeping spare-parts inventory straightforward. Call us to confirm proper fit for your transmission.
Features
489 Series, 8-bolt direct-mount cast iron housing eliminates adapter plate and reduces leak paths
Wire/cable mechanical shift type; electric-over-air shift option available in this series
1-1/4″ round output shaft with key
Intermittent torque: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series for simplified service and parts sourcing
Kit-style design and greaseable output options for easier field maintenance
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt direct-mount (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)
- 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)
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO opening









