The Chelsea 489GHAHX-V3GK or 489GHAHXV3GK is a 489 Series Power Take-Off assembly designed for manual transmissions with an 8-bolt PTO mounting opening. The one-piece cast iron housing bolts directly to the transmission without an adapter plate, eliminating that extra leak path. The 489 Series delivers the same intermittent torque capacity as the 442 Series - 250 lb-ft (339 Nm) - while featuring tapered bearings in place of needle bearings for greater load-bearing capability. This unit uses a wire/cable mechanical shift and carries a 1-1/4" round output shaft with key. Output power ranges from 46 to 55 HP (31-40 kW), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Compatible with Eaton Fuller, Volvo/Mack, and other manual transmission applications. Available from Pro Gear and Transmission - call us to confirm proper fit for your application.

The Chelsea 489 Series is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series offers twenty-seven output options including a 360-degree rotatable flange, and eleven internal speed ratios. Internal components are shared with the Chelsea 442 Series, making parts interchangeability straightforward for fleets already running 442 Series units.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening - no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option also available
1-1/4" round output shaft with key; greaseable output options available
Tapered bearings replace needle bearings for increased load-bearing capacity
Internal parts common to Chelsea 442 Series simplify sourcing and service
Kit-style design makes field servicing straightforward
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct to transmission - no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical (electric-over-air option available)
- 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 (18 kW) at 500 RPM; 48 HP (36 kW) at 1,000 RPM
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% (check application pages for actual torque ratings)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO opening
- LUBRICATION: X suffix = no pressure lube; P suffix = pressure lube
Additional Information

The Chelsea 489 Series is suited for utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. The series offers twenty-seven output options including a 360-degree rotatable flange, and eleven internal speed ratios. Internal components are shared with the Chelsea 442 Series, making parts interchangeability straightforward for fleets already running 442 Series units.
