The Chelsea 489 Series Power Take-Off, part number 489XQAHX-W3AF or 489XQAHXW3AF, is an 8-bolt PTO assembly engineered for manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec applications. The one-piece cast iron housing mounts directly to the 8-bolt transmission opening, eliminating the adapter plate found on other designs and reducing potential leak paths. Shift is accomplished via wire/cable mechanical actuation with an electric-over-air option also available. Output is through a 1-1/4" round shaft with keyway. The 489 Series delivers intermittent torque in the 201-300 lb-ft range and shaft power of 24 HP at 500 RPM and 48 HP at 1000 RPM. Internal components are common to the 442 Series, simplifying parts sourcing. Pro Gear and Transmission sells this genuine Chelsea unit. Call us to confirm proper fit for your transmission.
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 available
1-1/4" round output shaft with keyway; greaseable output options reduce spline fretting and corrosion
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1000 RPM
Internal parts common to Chelsea 442 Series simplify service and parts sourcing
Kit-style construction makes field service straightforward; fits Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct mount 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: 201-300 lb-ft (301-400 Nm)
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1000 RPM
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% (check application pages for actual torque ratings)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X suffix = No Pressure Lube; P suffix = Pressure Lube
Additional Information
