Description
The Chelsea 489 Series PTO Assembly, part number 489GSAHX-A5GK or 489GSAHXA5GK, is an 8-bolt power take-off 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 need for an adapter plate and reducing potential leak paths. The 489 Series delivers 250 lb-ft intermittent torque, matching the 442 Series capacity, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Output is through a 1-1/4″ round shaft with key option. Shift is via wire/cable mechanical actuation. Internal components are common to the Chelsea 442 Series, making parts sourcing straightforward. Call us to confirm proper fit for your transmission and application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift actuation
250 lb-ft intermittent torque capacity, matching Chelsea 442 Series ratings
1-1/4″ round output shaft with key option
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style design with internal parts common to the 442 Series for easier service
Greaseable output options to reduce spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- 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
- OUTPUT SHAFT TYPE: 1-1/4″ Round; 1-1/4″ Round with Key
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICATION: X = No Pressure Lube; P = Pressure Lube
