The Chelsea 489GHAHX-A3RK or 489GHAHXA3RK is a Series 489 power take-off assembly built for Eaton/Fuller, Volvo, and Mack transmissions, plus other compatible units. It uses an 8-bolt mounting pattern and a wire/cable mechanical shift, with an output rated at 46-55 HP (31-40 kW) and shaft power of 24 HP at 500 RPM or 48 HP at 1000 RPM. Intermittent torque falls in the 201-300 lb-ft range; check the Chelsea application pages for the exact rating for your drivetrain. The 1-1/4" round output shaft (with keyway option) accepts common driven accessories. Internal parts are shared with the Chelsea 442 Series, simplifying service and parts sourcing. Kit-style construction makes field servicing straightforward. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-bolt mounting pattern for Eaton/Fuller, Volvo/Mack, and other compatible transmissions
Wire/cable mechanical shift (electric-over-air shift option also available)
1-1/4" round output shaft; keyed version available
Output power rated at 46-55 HP (31-40 kW); 48 HP at 1000 RPM shaft power
Intermittent torque rated 201-300 lb-ft (check application pages for exact rating)
Internal parts common to Chelsea 442 Series; kit-style design for straightforward servicing
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical (electric-over-air shift option available)
- OUTPUT SHAFT TYPE: 1-1/4" Round; 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 1000 RPM
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm) - check application pages for exact rating
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other compatible transmissions
- LUBRICATION: X suffix = no pressure lube; P suffix = pressure lube
Additional Information
Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
