The Chelsea 489 Series PTO Assembly, part number 489XAAHX-A5XQ or 489XAAHXA5XQ, is an air shift power take-off built for 8-bolt manual transmission openings on Eaton/Fuller, Volvo/Mack, and other compatible transmissions. The one-piece cast iron housing bolts directly to the 8-bolt aperture, removing the need for an adapter plate and reducing potential leak paths. Intermittent torque capacity for the 489 Series is 250 lb-ft (339 Nm), matching the torque capacity of the 442 Series. The 489 Series supports 24 HP at 500 RPM and 48 HP at 1,000 RPM. Strong tapered bearings replace needle bearings for greater load-bearing capability. Internal parts are common to the 442 Series, simplifying service. Call us to confirm proper fit for your transmission and application.
Features
8-Bolt mounting, one-piece cast iron housing bolts directly to transmission opening, no adapter plate needed
Air shift
SAE B 2 or 4-bolt flange output; 24 HP at 500 RPM, 48 HP at 1,000 RPM
Intermittent torque rating: 250 lb-ft (339 Nm) for the 489 Series
Internals common to Chelsea 442 Series, simplifying parts sourcing and service
Tech Specs
- Product Series: 489
- Mounting Type: 8-Bolt
- Mounting Option: Standard Mount (X)
- Gear Ratio Code: A (14/39)
- Input Gear Designator: AH
- Lube Option: No Pressure Lube (X)
- Shift Option: Air Shift (A)
- Assembly Arrangement: 5
- Output Option: SAE B 2 or 4-Bolt Flange, SAE B Shaft (7/8" 13T), Rotated 90 Degrees (XQ)
- Intermittent Torque: 250 lb-ft (339 Nm) - Check Application Pages for Actual Torque Ratings
- Continuous Torque: De-rate intermittent torque 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 8-bolt manual transmissions
Additional Information
