The Chelsea 489GRAHX-H3XD or 489GRAHXH3XD is an 8-bolt power take-off assembly from the 489 Series, designed for most manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec. The integral one-piece cast iron housing bolts directly to the 8-bolt transmission opening, eliminating the need for an adapter plate and reducing potential leak paths. Shift type is wire/cable mechanical. The 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. Call us to confirm proper fit for your specific transmission and application.
Features
8-Bolt integral cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift type
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
Tapered bearings for greater load-bearing capability over needle bearing designs
Kit-style construction shares internal parts with the Chelsea 442 Series for easier servicing
Greaseable output options available to reduce pump shaft spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (integral one-piece cast iron housing, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- 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
- 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
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and most 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube (suffix-dependent)
Additional Information
