The Chelsea 489 Series Power Take-Off Assembly, part number 489GHAHX-V3XQ or 489GHAHXV3XQ, is an 8-bolt unit designed to mount directly to manual transmissions including Eaton Fuller, Mack, and Tremec without an adapter plate, eliminating a common leak path. The one-piece cast iron housing delivers the same intermittent torque rating as the 442 Series, up to 250 lb-ft (339 Nm), through a 1-1/4" round output shaft with key. Shift is wire/cable mechanical, and the unit supports output power of 46-55 HP (31-40 kW), with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. Strong tapered bearings handle load bearing in place of needle bearings. For continuous-duty applications, de-rate the torque rating by 30% and confirm actual values on the Chelsea application pages. Call us to confirm proper fit for your transmission.
Features
8-bolt one-piece cast iron housing mounts directly to manual transmissions including Eaton Fuller, Mack, and Tremec - 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 to reduce spline fretting and corrosion
Intermittent torque rating up to 250 lb-ft (339 Nm); continuous-duty rating requires 30% de-rate per Chelsea application pages
Shaft power: 24 HP (500 RPM) and 48 HP (1,000 RPM)
Kit-style design with internal parts common to the Chelsea 442 Series, simplifying service and parts sourcing
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- 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
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO opening
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
Additional Information
