The Chelsea 489 Series Power Take-Off Assembly, part number 489GXAHX-V3XK or 489GXAHXV3XK, mounts directly to the 8-bolt transmission opening on most manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec units. The one-piece cast iron housing eliminates the adapter plate required by some competing designs, reducing potential leak paths. Intermittent torque capacity for this series reaches 250 lb-ft (339 Nm); continuous-duty use requires derating by 30 percent (check application pages for actual ratings). The wire/cable mechanical shift mechanism engages the 1-1/4" round output shaft, which is also available with a keyway. Shaft power is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal parts are common with the Chelsea 442 Series, simplifying parts sourcing. 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; electric-over-air shift option also available
1-1/4" round output shaft, with keyway option
Intermittent torque rating: 250 lb-ft (339 Nm) for this series; continuous use requires 30% derating
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series; kit-style design simplifies field service
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct to transmission, one-piece cast iron housing)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round; 1-1/4" Round with Key
- INTERMITTENT TORQUE: 250 lb-ft / 339 Nm (Check Application Pages for Actual Torque Ratings)
- CONTINUOUS TORQUE: Derate intermittent rating by 30% (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)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube; P = 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.
